LIME-DATA/scienceqa · Datasets at Hugging Face

level stringclasses 3 values	question stringlengths 17 259	question_id int64 4 2.01k	answer int64 0 4	description stringlengths 129 1.24k	choices listlengths 2 5	hint stringlengths 0 941	task stringclasses 3 values
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	863	0	The image shows two jars labeled Sample A and Sample B, each containing a different number of particles. Sample A has 28 particles with an average mass of 1 u and an average particle speed of 1,000 m/s. Sample B has an unspecified number of particles with an average mass of 28 u and an average particle speed of 1,000 m/s. The particles in both samples are depicted as small circles with different colors for each sample.	[ "sample B", "sample A", "neither; the samples have the same temperature" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which property do these four objects have in common?	897	2	The image shows two separate pictures side by side. On the left, there is a picture of a single cracker with holes in it, labeled "cracker." On the right, there is a picture of an ocean wave with a blue background, labeled "ocean wave." The images are presented in a simple, cartoon-like style with bold outlines and flat colors.	[ "flexible", "opaque", "salty" ]	Select the best answer.	closed choice
middle	What is the expected ratio of offspring with straight fur to offspring with curly fur? Choose the most likely ratio.	899	4	The image shows a 2x2 matrix with the letters "F" and "f" in each cell. The top left cell has the letter "F" in black font, the top right cell has the letter "f" in blue font, the bottom left cell has the letter "F" in blue font, and the bottom right cell has the letter "f" in black font. The matrix is enclosed in a black border.	[ "2:2", "0:4", "3:1", "1:3", "4:0" ]	In a group of cats, some individuals have straight fur and others have curly fur. In this group, the gene for the fur type trait has two alleles. The allele for curly fur (f) is recessive to the allele for straight fur (F). This Punnett square shows a cross between two cats.	closed choice
difficult	Which country is highlighted?	910	1	The image is a map of the world, with a focus on the southern hemisphere. The map shows the continents of Australia and New Zealand in green, with the surrounding oceans in blue. There is a small square highlighted in yellow, which appears to be a specific area of interest within the map. The map does not show any labels or names of countries, making it difficult to identify specific locations without prior knowledge of geography.	[ "New Zealand", "Nauru", "the Marshall Islands", "Vanuatu" ]		closed choice
middle	The Inca created a large civilization in South America. Which letter marks the territory of the Inca?	917	0	The image is a map of South America, showing the continent in white and the surrounding oceans in blue. The map includes labels for different regions of South America, with the letters A, B, C, and D indicating specific areas. There is also a compass rose in the bottom left corner, indicating north, south, east, and west directions. The map has a scale at the bottom right corner, showing the distance of 1,000 miles.	[ "D", "B", "A", "C" ]	The following map shows the location of several civilizations that began in North and South America. Civilizations are organized human communities. Look at the map. Then answer the question below.	closed choice
middle	Which of these states is farthest west?	922	1	The image is a map of the United States, with the states of Wisconsin, Kansas, and Louisiana highlighted in green. The rest of the country is shown in a light blue color, with the oceans on the east and west coasts depicted in a darker blue. The map does not show any labels or names of the states, but it is clear which states are highlighted due to their distinct green color.	[ "Wisconsin", "Kansas", "Louisiana", "Maryland" ]		closed choice
middle	Which solution has a higher concentration of yellow particles?	941	0	The image shows two beakers, each containing a yellow solution. The beaker on the left is labeled "Solution A" and has a volume of 25 mL. The beaker on the right is labeled "Solvent volume: 25 mL" and also contains a yellow solution with a volume of 25 mL. Both beakers have a blue base and a white neck. The background of the image is white.	[ "Solution A", "neither; their concentrations are the same", "Solution B" ]	The diagram below is a model of two solutions. Each yellow ball represents one particle of solute.	closed choice
middle	Which of these states is farthest east?	948	2	The image is a map of the United States, with the states of North Dakota, Vermont, Ohio, and North Carolina highlighted in green. The map shows the borders of each state, as well as the surrounding bodies of water such as the Pacific Ocean, the Atlantic Ocean, and the Great Lakes. The map does not show any labels or names of the states, but it is clear which states are being highlighted.	[ "North Dakota", "North Carolina", "Vermont", "Ohio" ]		closed choice
middle	Which three months have an average precipitation of around 3.5inches in Seattle?	950	0	The image is a bar graph showing the average precipitation in Seattle, Washington for each month of the year. The x-axis represents the months, from January to December, and the y-axis represents the amount of precipitation in inches. Each bar is color-coded to represent a different month, with January being red, February being orange, March being yellow, April being green, May being blue, June being purple, July being pink, August being brown, September being black, October being gray, November being light blue, and December being dark blue. The bars vary in height, with some months having significantly more precipitation than others.	[ "February, March, and October", "May, June, and October", "April, May, and November" ]	Use the graph to answer the question below.	closed choice
difficult	What is the name of the colony shown?	951	2	The image appears to be a map of the northeastern United States, with the states highlighted in green. The highlighted states include Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut. The map also shows parts of New York and Pennsylvania, but they are not highlighted. The map is set against a light blue background, representing water, and there is a darker blue area on the right side, likely representing the Atlantic Ocean. The map does not have any labels or names of the states, so it may be difficult for someone unfamiliar with the region to identify the specific states.	[ "Tennessee", "Rhode Island", "New Hampshire", "Connecticut" ]		closed choice
middle	Which property do these three objects have in common?	956	0	The image shows a blue wool sweater with a crew neckline. The sweater features a cable knit pattern on the front, with vertical cables running down the center and smaller cables on either side. There are also horizontal cables at the hemline and cuffs. The sweater has a ribbed hem and cuffs for a snug fit. It is designed to be worn as a mid-layer under other clothing or as a standalone piece in cooler weather.	[ "scratchy", "fuzzy", "hard" ]	Select the best answer.	closed choice
difficult	Which solution has a higher concentration of green particles?	977	1	The image shows two flasks labeled as "Solution A" and "Solution B". Both flasks contain a green solvent, with Solution A having 25 mL of solvent and Solution B having an unspecified volume of solvent. The flasks are transparent and the solvent is represented by green circles.	[ "Solution B", "Solution A", "neither; their concentrations are the same" ]	The diagram below is a model of two solutions. Each green ball represents one particle of solute.	closed choice
middle	Which of these oceans does the prime meridian intersect?	979	0	The image is a world map that shows the different continents and oceans of the Earth. The continents are depicted in green, while the oceans are shown in blue. The map also includes labels for each continent and ocean, such as "Europe," "Asia," "Africa," "South America," "North America," "Antarctica," "Arctic Ocean," "Atlantic Ocean," "Indian Ocean," "Pacific Ocean," and "Southern Ocean." The map has a grid system with lines of latitude and longitude marked in degrees, indicating the position of each location on the globe.	[ "the Arctic Ocean", "the Pacific Ocean", "the Indian Ocean" ]		closed choice
middle	Which country is highlighted?	991	3	The image is a map of the world, with a focus on the southern hemisphere. The landmasses are depicted in green, while the oceans are shown in blue. The map highlights the vastness of the oceans and the relatively small size of the landmasses. The continents of Australia and South America are prominently featured, with Australia being the largest landmass visible on the map. The map also shows the numerous small islands scattered throughout the oceans. The overall impression is one of the isolation and remoteness of these landmasses in the vast expanse of the oceans.	[ "Tuvalu", "Solomon Islands", "the Marshall Islands", "Fiji" ]		closed choice
middle	Which solution has a higher concentration of purple particles?	994	1	The image shows two beakers labeled "Solution A" and "Solution B". Both beakers contain a clear solvent with purple spheres dispersed throughout. The label on Solution A indicates that the volume of the solvent is 45 mL, while the label on Solution B does not provide any information about the volume of the solvent.	[ "neither; their concentrations are the same", "Solution B", "Solution A" ]	The diagram below is a model of two solutions. Each purple ball represents one particle of solute.	closed choice
difficult	Will these magnets attract or repel each other?	1,000	0	The image is completely white and does not contain any visible elements or objects. It appears to be a blank space with no content or description.	[ "attract", "repel" ]	Two magnets are placed as shown.	closed choice
middle	Which of the following organisms is the tertiary consumer in this food web?	1,002	0	The image is a food web diagram that shows the relationships between different organisms in a forest ecosystem. At the top of the food web is the persimmon tree, which serves as a primary source of food for the black bear and gray fox. The black bear also preys on the beaver, while the gray fox feeds on the pine vole and parasol. The black racer snake preys on the pine vole and parasol, and the silver maple fungus feeds on the pine vole and parasol. The diagram also includes arrows indicating the direction of energy flow from one organism to another.	[ "black racer", "silver maple", "beaver", "black bear" ]	Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia. A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem.	closed choice
middle	Which continent is highlighted?	1,005	3	The image is a simplified world map with the continents depicted in green and the oceans in blue. The map does not show any country borders or labels, making it difficult to identify specific regions. The map appears to be a basic representation of the world's geography, without any detailed information.	[ "South America", "Australia", "Africa", "Antarctica" ]		closed choice
middle	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,026	1	The image shows two squares, one on the left and one on the right. Both squares are divided into two sections, with the top section being purple and the bottom section being blue. In the center of each purple section, there is a white letter "N" written in all caps. The squares are outlined in black, creating a border around them. The background of the image is white.	[ "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is greater in Pair 1." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes.	closed choice
middle	Which property do these four objects have in common?	1,032	1	The image shows two different types of bottles. On the left side, there is a glass bottle with a green cap and a yellow label that reads "apple juice". On the right side, there is a ceramic bottle with a gold-colored rim and a white body. The bottles are placed against a white background.	[ "sweet", "fragile", "opaque" ]	Select the best answer.	closed choice
middle	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,033	0	The image shows a rectangular button with a green background and a purple border. The button has the letter "N" in white text on the green background. The button appears to be part of a user interface, possibly for a software application or website.	[ "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is the same in both pairs." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.	closed choice
middle	Which country is highlighted?	1,039	1	The image is a map of the Caribbean region, showing various islands and countries. The map is predominantly blue, representing the ocean, with green land masses indicating the islands. The largest island on the map is Cuba, located in the top left corner. Other notable islands include Hispaniola (shared by Haiti and the Dominican Republic), Jamaica, and Puerto Rico. The map also shows smaller island nations such as the Bahamas, Barbados, and Trinidad and Tobago. The map does not show any political borders or labels, but the relative positions of the islands give an idea of their geographical locations.	[ "Antigua and Barbuda", "Haiti", "Cuba", "Saint Vincent and the Grenadines" ]		closed choice
middle	Which ocean is highlighted?	1,049	3	The image is a map of the world, with the continents depicted in green and the oceans in blue. The map is centered on Africa, with Europe to the north and South America to the west. The map does not show any labels or names of countries, but it does show the general shapes and outlines of the continents. The map has a simple and clear design, with no additional details or decorations.	[ "the Arctic Ocean", "the Southern Ocean", "the Atlantic Ocean", "the Indian Ocean" ]		closed choice
middle	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,058	2	The image shows two circular diagrams divided into three sections each. The sections are colored green, purple, and a lighter shade of green. Each section is labeled with the letters "N," "S," and "N" respectively. The diagrams appear to be a representation of a compass or a map, with the "N" sections representing north, the "S" section representing south, and the lighter green sections representing east and west. The diagrams are symmetrical and have a simple, clean design.	[ "The magnetic force is weaker in Pair 2.", "The strength of the magnetic force is the same in both pairs.", "The magnetic force is weaker in Pair 1." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.	closed choice
middle	Which trait did Eryma have? Select the trait you can observe on the fossil.	1,063	0	The image shows a close-up of a small, light-colored shrimp with its claws open and extended. The shrimp appears to be on a textured surface that could be a piece of paper or fabric. The background is a neutral color, providing a contrast to the shrimp's lighter hue. The image has a shallow depth of field, with the focus primarily on the shrimp, causing the background to blur slightly. There are no visible texts or distinguishing marks that provide additional context about the image.	[ "antennae", "a round, flat body" ]	This picture shows a fossil of an ancient animal called Eryma. Fossils of Eryma have been found in deposits of shale and limestone. Some Eryma fossils are more than 100,000,000 years old.	closed choice
middle	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,069	2	The image shows two identical green triangles with a white outline, each containing the letter "S" in white. The triangles are placed on a white background and are separated by a small amount of space. The overall design is simple and symmetrical.	[ "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is the same in both pairs." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.	closed choice
middle	Which of the following organisms is the secondary consumer in this food web?	1,078	1	The image depicts a forest ecosystem with various elements labeled. At the top left, there is a persimmon tree with ripe persimmons hanging from its branches. Below the persimmon tree, there are two black bears walking on a rocky path. To the right of the bears, there is a gray fox standing on its hind legs. Below the fox, there is a black racer snake slithering through the grass. To the left of the snake, there is a beaver gnawing on a tree trunk. Below the beaver, there is a pine vole burrowing in the ground. To the right of the vole, there is a fungus growing on a fallen log. Below the fungus, there is a silver maple tree with its leaves rustling in the wind. The image also includes arrows connecting the different elements to show how they interact and depend on each other within the ecosystem.	[ "persimmon tree", "black bear", "beaver", "swallowtail caterpillar" ]	Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia. A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem.	closed choice
middle	Which animal's skin is better adapted to hurt an attacking predator?	1,109	1	The image shows a porcupine standing on a rocky surface. The porcupine has a large, spiky quill covering its back and sides, which is a characteristic feature of this animal. Its fur appears to be a mix of brown and black colors, with the quills being a lighter, almost white color at their tips. The porcupine's head is turned slightly to the side, and it seems to be looking down towards the ground, possibly searching for food or inspecting its surroundings. The background is blurred, but it looks like a natural, outdoor setting with rocks and possibly some vegetation.	[ "fantastic leaf-tailed gecko", "blowfish" ]	Porcupines have sharp spines covering much of their skin. These spines are called quills. The skin of the is adapted to hurt an attacking predator. Figure: porcupine.	closed choice
middle	Which continent is highlighted?	1,121	1	The image is a world map with the continents colored in green and the oceans in blue. The map is presented in a flat earth style, with the North Pole at the center and the continents radiating outwards. The map does not show any political borders or labels, just the general shape of the continents. The map also includes the Arctic Ocean at the top and the Southern Ocean at the bottom, surrounding Antarctica.	[ "Antarctica", "Asia", "Africa", "North America" ]		closed choice
middle	Which is the main persuasive appeal used in this ad?	1,122	1	The image features a graphic design with a promotional message. It shows a hand holding a credit card, which is labeled "ZUMIO Credit Card." The card has a golden color scheme with the number "5234 56789012345" visible on its front. To the left of the card, there are three green dollar bills being held by the same hand, suggesting a cashback offer. Above the card and the dollars, there's text that reads "9% CASH BACK ON ZDAY PURCHASES WITH THE ZUMIO CREDIT CARD." This indicates a special promotion offering a 9% cashback on purchases made on a specific day, referred to as "Zday," for those who use the ZUMIO Credit Card. The background of the image is a solid blue, which contrasts with the golden card and green dollars, making the promotional elements stand out.	[ "pathos (emotion)", "logos (reason)", "ethos (character)" ]		closed choice
middle	What is the probability that a human produced by this cross will be heterozygous for the xeroderma pigmentosum gene?	1,126	1	The image shows a 3x3 grid with the letter "e" in different font sizes and styles. The top row has the letter "e" in a small, bold font, the middle row has the letter "e" in a larger, italic font, and the bottom row has the letter "e" in an even larger, bold font. Each row also has two additional "e" letters, one in a smaller font size and one in a larger font size, both in the same style as the main "e" in that row. The background of the grid is white, and the grid lines are thin and black.	[ "4/4", "2/4", "3/4", "0/4", "1/4" ]	This passage describes the xeroderma pigmentosum trait in humans: Xeroderma pigmentosum is a condition that causes skin to be easily damaged by sunlight. Humans with xeroderma pigmentosum avoid exposure to sunlight by wearing protective clothing, using sunscreen, and not going outside during the day. In a group of humans, some individuals have xeroderma pigmentosum and others do not. In this group, the gene for the xeroderma pigmentosum trait has two alleles. The allele for not having xeroderma pigmentosum (E) is dominant over the allele for having xeroderma pigmentosum (e). This Punnett square shows a cross between two humans.	closed choice
middle	What can Olivia and Cara trade to each get what they want?	1,137	0	The image shows a list of items with bullet points. The items listed are "a hot dog," "tomatoes," "almonds," and "water." The background of the image is white, and there is a pink border on the left side of the image.	[ "Olivia can trade her tomatoes for Cara's broccoli.", "Cara can trade her almonds for Olivia's tomatoes.", "Cara can trade her broccoli for Olivia's oranges.", "Olivia can trade her tomatoes for Cara's carrots." ]	Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another. Olivia and Cara open their lunch boxes in the school cafeteria. Neither Olivia nor Cara got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Olivia's lunch Cara's lunch	closed choice
middle	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,150	2	The image shows two circular diagrams, each divided into two colored segments. The segment on the left is blue and labeled "N," while the segment on the right is green and labeled "S." The circles are enclosed within a larger white circle, and there is a horizontal line at the bottom of the image.	[ "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is smaller in Pair 1.", "The magnitude of the magnetic force is smaller in Pair 2." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.	closed choice
middle	What is the name of the colony shown?	1,152	2	The image is a map of the eastern United States, with the states highlighted in green. The map shows the Atlantic Ocean to the east, and the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, Alabama, Mississippi, Louisiana, Texas, and parts of Arkansas and Tennessee. The map does not show any specific cities or landmarks, but it provides a general overview of the eastern region of the country.	[ "Virginia", "Alabama", "Maryland", "New Jersey" ]		closed choice
difficult	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,155	0	The image shows two jars labeled "Sample A" and "Sample B". Both jars contain blue particles with the same mass of 32 u. However, the average particle speed is different between the two samples. Sample A has an average particle speed of 760 m/s, while Sample B has an average particle speed that is not specified in the image. The jars are depicted against a white background.	[ "sample A", "neither; the samples have the same temperature", "sample B" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which property matches this object?	1,160	1	The image shows a brown sanding block with a textured surface. The block has a rectangular shape with rounded edges and is designed to be held in one hand for sanding purposes. The texture on the block appears to be made up of small grooves or ridges that would help to remove material from surfaces during the sanding process. The color of the block is a uniform brown, suggesting it may be made from a material such as wood or a wood-like composite. The background of the image is white, which contrasts with the brown color of the sanding block, making the block stand out clearly.	[ "yellow", "rough" ]	Select the better answer.	closed choice
difficult	Which term matches the picture?	1,166	1	The image shows a bunch of ginger roots with a rough and knobby texture. The ginger is arranged in a circular pattern, with the roots pointing outwards. The color of the ginger is a light brown with some darker brown spots. The background is white, which makes the ginger stand out more prominently. The ginger appears to be fresh and ready for use in cooking or as a natural remedy.	[ "stem tuber", "rhizome" ]	Read the text. Some plants have underground stems that branch out in a fingerlike pattern. Botanists call these stems rhizomes. Some of these branching stems, such as the turmeric rhizome, are highly prized for the spices that can be extracted from them. Like rhizomes, stem tubers are specialized structures that plants use to deliver nutrients. While rhizomes usually contain many horizontal finger-like branches, though, stem tubers are usually thick and oval-shaped, such as potatoes.	closed choice
middle	Which property do these three objects have in common?	1,179	2	The image shows a colorful inflatable castle with yellow and red towers, a purple base, and blue walls. The castle appears to be designed for children's play and is likely used at parties or events.	[ "fragile", "transparent", "colorful" ]	Select the best answer.	closed choice
middle	What can Dalton and Elise trade to each get what they want?	1,193	1	The image shows a list of items with their corresponding images. The items listed are "a hot dog," "tomatoes," "almonds," and "water." Each item has a small image next to it, with the exception of "water," which does not have an image. The background of the image is white, and there is a thin orange line at the top.	[ "Elise can trade her almonds for Dalton's tomatoes.", "Dalton can trade his tomatoes for Elise's broccoli.", "Elise can trade her broccoli for Dalton's oranges.", "Dalton can trade his tomatoes for Elise's carrots." ]	Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another. Dalton and Elise open their lunch boxes in the school cafeteria. Neither Dalton nor Elise got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Dalton's lunch Elise's lunch	closed choice
middle	Is the following statement about our solar system true or false? The volume of Neptune is less than 75% of the volume of Uranus.	1,196	1	The image is a table with two columns. The first column lists various volume measurements in billions of km3, ranging from 60 to 1,431.280. The second column lists the primary component associated with each volume measurement, which includes rock, gas, and ice. The table appears to be organized in ascending order based on the volume measurements.	[ "true", "false" ]	Use the data to answer the question below.	true-or false
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,198	1	The image shows two jars labeled "Sample A" and "Sample B". Each jar contains particles with different properties. Sample A has green particles with an average mass of 46 u and an average particle speed of 1,100 m/s. Sample B has blue particles with the same average mass of 46 u but a lower average particle speed of 100 m/s. The jars are placed side by side, with Sample A on the left and Sample B on the right.	[ "neither; the samples have the same temperature", "sample A", "sample B" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,213	2	The image shows two jars labeled Sample A and Sample B. Both jars contain green particles, but the particles in Sample A have an average mass of 36 u (unified atomic mass units) and an average speed of 1,000 m/s, while the particles in Sample B have the same average mass but a lower average speed of 500 m/s. The particles in both samples are depicted as moving and emitting lines that represent their motion.	[ "sample B", "sample A", "neither; the samples have the same temperature" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which solution has a higher concentration of pink particles?	1,217	0	The image shows two beakers labeled as "Solution A" and "Solution B". Both beakers have a volume of 20 mL. Solution A has a clear solvent with no solute particles visible, while Solution B has a clear solvent with several purple solute particles suspended in it. The image is likely used to illustrate the concept of solubility and concentration in chemistry.	[ "Solution B", "Solution A", "neither; their concentrations are the same" ]	The diagram below is a model of two solutions. Each pink ball represents one particle of solute.	closed choice
middle	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,227	2	The image shows two squares, one on the left and one on the right. Both squares have a blue background with an orange rectangle in the center. The orange rectangle on the left square is slightly larger than the one on the right square. There is also a small white letter "S" in the bottom right corner of both rectangles. The overall design is simple and symmetrical.	[ "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is greater in Pair 1." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes.	closed choice
difficult	Which solution has a higher concentration of purple particles?	1,237	0	The image shows two flasks labeled as "Solution A" and "Solution B". Both flasks contain a blue solvent, with Solution A having 40 mL of solvent and Solution B having an unspecified volume of solvent. The flasks are transparent, allowing the blue solvent to be visible inside.	[ "Solution B", "neither; their concentrations are the same", "Solution A" ]	The diagram below is a model of two solutions. Each purple ball represents one particle of solute.	closed choice
middle	Which country is highlighted?	1,243	3	The image is a map of Australia and its surrounding islands. The map shows the mainland of Australia in green, with the states and territories outlined in white. To the north of Australia, there are several smaller islands, including the Solomon Islands, Vanuatu, and New Caledonia. To the east, there are the New Hebrides and the Loyalty Islands. To the south, there is New Zealand. The map also shows a large body of water to the west of Australia, which is likely the Indian Ocean. There is a small rectangular area highlighted in yellow on the mainland of Australia, but it is not clear what this area represents.	[ "Samoa", "Fiji", "Tuvalu", "Tonga" ]		closed choice
difficult	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,251	1	The image shows two jars labeled "Sample A" and "Sample B". Sample A contains green particles with an average mass of 30 u and an average particle speed of 1,600 m/s. Sample B contains blue particles with the same average mass and average particle speed as Sample A. The image is likely used to demonstrate the concept of kinetic energy in physics.	[ "neither; the samples have the same temperature", "sample A", "sample B" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which property do these four objects have in common?	1,277	2	The image shows two plush toys representing a kiwi bird. On the left side, there is a brown plush toy with a fuzzy texture and a round shape, resembling the appearance of a real kiwi bird. On the right side, there is a red plush toy with black spots, designed to look like a ladybug. Both toys are placed against a white background, and there are labels below each toy that read "kiwi" and "stuffed kiwi," respectively. The image appears to be a product display or an advertisement for these plush toys.	[ "stretchy", "hard", "fuzzy" ]	Select the best answer.	closed choice
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,290	0	The image shows two jars labeled as "Sample A" and "Sample B". Both jars contain particles, with Sample A having green particles and Sample B having blue particles. The image also provides information about the mass of each particle in Sample A, which is 32 u, and the average speed of each particle in Sample B, which is 1,100 m/s.	[ "sample A", "sample B", "neither; the samples have the same temperature" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which country is highlighted?	1,292	2	The image is a map of Australia and New Zealand. The map shows the two countries in green, with the surrounding ocean in blue. The map does not show any other countries or geographical features, and there are no labels or text on the map. The map appears to be a simple representation of the two countries, with no political boundaries or regional divisions shown.	[ "Australia", "Papua New Guinea", "New Zealand", "Vanuatu" ]		closed choice
middle	Which of these states is farthest south?	1,297	2	The image is a map of the United States, with all states colored in green except for North Dakota and Vermont, which are not colored. The map shows the borders of each state and the surrounding bodies of water, including the Pacific Ocean, Atlantic Ocean, and the Gulf of Mexico. The map does not include any labels or names of the states, but it is clear that North Dakota and Vermont are the only two states not colored in green.	[ "North Dakota", "Vermont", "Rhode Island", "Maine" ]		closed choice
middle	Which solution has a higher concentration of green particles?	1,326	1	The image shows two flasks containing a solution. The flask on the left is labeled "Solution A" and has a volume of 35 mL. The flask on the right is labeled "Solvent volume: 35 mL" and also has a volume of 35 mL. Both flasks contain green spheres, which represent the solute in the solution. The image is likely used to illustrate the concept of concentration in chemistry, where the volume of solvent remains constant while the amount of solute can vary.	[ "neither; their concentrations are the same", "Solution B", "Solution A" ]	The diagram below is a model of two solutions. Each green ball represents one particle of solute.	closed choice
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,334	1	The image shows two jars labeled "Sample A" and "Sample B". Both jars contain particles, with Sample A having blue particles and Sample B having green particles. The mass of each particle in both samples is 16 u, but the average particle speed differs, with Sample A having a speed of 610 m/s and Sample B having an average particle speed that is not specified in the image. The particles in both samples are depicted as moving, as indicated by the lines radiating out from them, suggesting motion or vibration.	[ "neither; the samples have the same temperature", "sample B", "sample A" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which continent is highlighted?	1,336	2	The image is a simplified world map with a blue background representing the oceans and green landmasses representing the continents. The continents are depicted in a stylized manner, with exaggerated shapes and sizes. The map does not show any country borders or labels, making it difficult to identify specific regions. The overall design is minimalist and abstract, focusing on the basic geography of the world.	[ "North America", "Africa", "Australia", "South America" ]		closed choice
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,349	1	The image shows two jars labeled "Sample A" and "Sample B". Sample A contains green particles with a mass of 46 u each and an average particle speed of 630 m/s. Sample B contains purple particles with an average particle speed of 450 m/s. The jars are transparent, allowing the viewer to see the particles inside.	[ "neither; the samples have the same temperature", "sample A", "sample B" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which ocean is highlighted?	1,382	1	The image is a stylized map of the world, with countries depicted in shades of green and blue. The oceans are shown in a lighter blue, while the continents are in a darker green. The map does not show any labels or names of countries, but the overall layout and shape of the continents are recognizable. The map has a simple and clean design, with no additional details or features such as topography or borders.	[ "the Southern Ocean", "the Arctic Ocean", "the Indian Ocean", "the Atlantic Ocean" ]		closed choice
difficult	What is the probability that a rose plant produced by this cross will have single flowers?	1,386	1	The image shows a table with four cells, each containing a different combination of the letters "F" and "f". The top left cell has "F", the top right cell has "f", the bottom left cell has "Ff", and the bottom right cell has "ff". The letters are in a bold, sans-serif font and are colored in blue. The background of the table is white.	[ "3/4", "2/4", "1/4", "0/4", "4/4" ]	This passage describes the flower form trait in rose plants: Roses may grow single flowers or double flowers. Double flowers have more petals than single flowers and are highly prized by gardeners. However, these extra petals may block or replace parts of the flower needed for reproduction. This makes double-flowered plants difficult to breed. In a group of rose plants, some individuals have double flowers and others have single flowers. In this group, the gene for the flower form trait has two alleles. The allele for single flowers (f) is recessive to the allele for double flowers (F). This Punnett square shows a cross between two rose plants.	closed choice
difficult	Which month has the lowest average precipitation in London?	1,411	1	The image is a bar graph showing the average precipitation in London, England for each month of the year. The months are listed on the horizontal axis from January to December, and the vertical axis represents the amount of precipitation in millimeters. Each month has a corresponding bar with a different color, ranging from light blue to purple to green to orange. The bars vary in height, indicating the amount of precipitation for that month. The tallest bars represent the months with the most precipitation, while the shortest bars represent the months with the least precipitation.	[ "November", "July", "February" ]	Use the graph to answer the question below.	closed choice
middle	Does this passage describe the weather or the climate?	1,414	1	The image shows a vast, dry landscape with cracked earth that extends towards the horizon. The ground is covered in large, irregularly shaped cracks that create a pattern of broken earth. In the distance, there are mountains with steep slopes and rocky surfaces. The sky is clear and blue, with the sun low on the horizon, casting long shadows and creating a warm, golden light that illuminates the scene. There is a single rock or boulder in the foreground, adding a sense of scale to the image. The overall atmosphere is one of desolation and harshness, with a sense of the relentless power of nature.	[ "climate", "weather" ]	Figure: Death Valley. Death Valley is a desert in eastern California. A record high temperature of 134°F was recorded there on July 10, 1913! Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place.	closed choice
middle	Which specific humidity level was measured within the outlined area shown?	1,425	1	The image appears to be a weather map showing temperature patterns across a geographical area. The map is color-coded, with different colors representing various temperature ranges. The green areas indicate regions with lower temperatures, while the purple and pink areas show locations with higher temperatures. There are numerical values on the top left corner of the map, possibly indicating the latitude and longitude coordinates for the area being represented. The map also has a circular boundary, suggesting that it is focusing on a specific region rather than a global view.	[ "10 grams of water vapor per kilogram of air", "1 grams of water vapor per kilogram of air", "12 grams of water vapor per kilogram of air" ]	The map below shows humidity in the lower atmosphere on March 19, 2017. The map shows specific humidity, a measurement of the amount of water vapor in the air. The outlined area shows an air mass that influenced weather in Asia on that day. Look at the map. Then, answer the question below. Data source: United States National Oceanic and Atmospheric Administration/Earth System Research Laboratory, Physical Sciences Division	closed choice
middle	What is the name of the colony shown?	1,432	2	The image is a map of the eastern United States, with the states colored in green and the surrounding areas in white. The map shows the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, Pennsylvania, New Jersey, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, and parts of Ohio and Michigan. The map also shows the Atlantic Ocean to the east and parts of Canada to the north. The map has a simple and clear design, making it easy to identify the different states and regions.	[ "Pennsylvania", "Kentucky", "Connecticut", "Delaware" ]		closed choice
middle	Which country is highlighted?	1,438	2	The image is a map of the Caribbean region, showing various islands and countries. The map is primarily blue, representing the ocean, with green land masses indicating the islands. The largest island on the map is Cuba, located in the top left corner. Other notable islands include Hispaniola (shared by Haiti and the Dominican Republic), Jamaica, and Puerto Rico. The map also shows smaller island nations such as the Bahamas, Barbados, and Trinidad and Tobago. The map does not include any labels or names of the islands, but their shapes and locations are recognizable to those familiar with the geography of the Caribbean.	[ "Jamaica", "Dominica", "the Dominican Republic", "Haiti" ]		closed choice
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,441	2	The image shows two jars labeled "Sample A" and "Sample B". Each jar contains particles of different colors and sizes. Sample A has green particles with an average mass of 36 u and an average particle speed of 1,600 m/s. Sample B has blue particles with the same average mass and speed as Sample A. The image appears to be a scientific representation of two samples with different physical properties.	[ "sample B", "neither; the samples have the same temperature", "sample A" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which material is this bracelet made of?	1,445	0	The image shows a gold-colored necklace with a chain link design. The necklace is circular in shape and appears to be made of a shiny, metallic material. The chain links are evenly spaced and have a consistent size throughout the necklace. The background of the image is plain white, which contrasts with the gold color of the necklace and makes it stand out. There are no other objects or text in the image.	[ "metal", "nylon" ]		closed choice
middle	What is the name of the colony shown?	1,476	1	The image is a map of the United States, with the states colored in green and the oceans in blue. The map shows the eastern coast of the United States, with the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, and parts of Alabama and Mississippi visible. The map does not show any labels or names of the states, but the shape of each state is recognizable. The map has a simple and clear design, with no additional details or decorations.	[ "Michigan", "New Jersey", "Ohio", "Pennsylvania" ]		closed choice
middle	Which property do these four objects have in common?	1,487	2	The image shows two sets of marbles, one set is labeled "marbles" and the other set is labeled "ocean marbles". The marbles on the left are solid red and green, while the ocean marbles on the right are blue with white swirls, resembling waves. The background of the ocean marbles is yellow, suggesting a sandy beach.	[ "opaque", "sweet", "translucent" ]	Select the best answer.	closed choice
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,492	2	The image shows two jars labeled as "Sample A" and "Sample B". Both jars contain particles, with Sample A having purple particles and Sample B having green particles. The image also provides information about the properties of the particles in each sample. For Sample A, the mass of each particle is given as 32 u (unified atomic mass units) and the average particle speed is 780 m/s (meters per second). For Sample B, only the average particle speed is provided, which is not specified in the image.	[ "sample A", "neither; the samples have the same temperature", "sample B" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which continent is highlighted?	1,508	0	The image is a simplified world map with only the continents and oceans depicted. The continents are shown in a solid green color, while the oceans are in a light blue color. The map does not show any countries, cities, or other geographical features. It is a basic representation of the world's landmasses and water bodies.	[ "Antarctica", "Europe", "Australia", "North America" ]		closed choice
middle	Which property do these three objects have in common?	1,512	1	The image shows a three-dimensional representation of a metal bar. The bar has a rectangular shape with rounded edges and corners, giving it a smooth and polished appearance. It is colored in shades of blue and silver, suggesting that it is made of a metallic material such as steel or aluminum. The background is white, which contrasts with the bar and makes it stand out. The word "metal bar" is written below the image, indicating what the object is.	[ "flexible", "shiny", "sticky" ]	Select the best answer.	closed choice
difficult	Which solution has a higher concentration of green particles?	1,523	1	The image shows two flasks containing a solution with green spheres. The left flask is labeled "Solution A" and has a volume of 45 mL, while the right flask is labeled "Solvent volume: 45 mL" and also contains 45 mL of the same solution. Both flasks have a blue background and are placed side by side.	[ "neither; their concentrations are the same", "Solution A", "Solution B" ]	The diagram below is a model of two solutions. Each green ball represents one particle of solute.	closed choice
middle	What is the probability that a pea plant produced by this cross will have green pods?	1,524	4	The image shows a 3x3 grid with the letter "d" in each cell. In the center cell, there is an additional "d" written on top of the existing "d", making it appear as "dd". The same "dd" pattern is also present in the bottom left and bottom right cells. The rest of the cells have only one "d" written in them. The background of the grid is white, and the "d"s are written in black.	[ "2/4", "4/4", "1/4", "3/4", "0/4" ]	In a group of pea plants, some individuals have green pods and others have yellow pods. In this group, the gene for the pod color trait has two alleles. The allele for yellow pods (d) is recessive to the allele for green pods (D). This Punnett square shows a cross between two pea plants.	closed choice
middle	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,536	1	The image shows two identical circular diagrams with three concentric rings. The innermost ring is blue, the middle ring is orange, and the outermost ring is a lighter shade of blue. In the center of each diagram, there is a white circle with the letter "N" written in black. The diagrams are presented side by side against a white background.	[ "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is greater in Pair 2." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.	closed choice
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,553	1	The image shows two jars, labeled Sample A and Sample B, each containing several particles. The particles in Sample A are green and have an average mass of 46 u and an average speed of 1,300 m/s. The particles in Sample B are purple and have the same average mass and speed as Sample A. The image also includes a key indicating that "u" stands for unified atomic mass unit.	[ "neither; the samples have the same temperature", "sample A", "sample B" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which solution has a higher concentration of purple particles?	1,569	0	The image shows two volumetric flasks, each containing a solution with purple spheres representing solute molecules. The volume of the solvent in both flasks is 25 mL. The label on the left flask reads "Solution A" and the label on the right flask reads "Solvent volume: 25 mL". The image appears to be a scientific representation of two different solutions with the same solvent volume.	[ "neither; their concentrations are the same", "Solution B", "Solution A" ]	The diagram below is a model of two solutions. Each purple ball represents one particle of solute.	closed choice
middle	Which property do these two objects have in common?	1,583	1	The image shows two separate pictures of food items. On the left side, there is a single cracker with holes in it, which is labeled as "cracker." On the right side, there is a red container filled with golden-brown french fries, which is labeled as "fries." The background of both images is white, and the text is in black font.	[ "soft", "salty" ]	Select the better answer.	closed choice
middle	What is the name of the colony shown?	1,588	2	The image is a map of the eastern United States, with the states colored in green and the surrounding areas left blank. The map shows the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, and parts of Alabama and Mississippi. The map does not show any labels or names of the states, but the shape of each state is clearly visible. The map has a simple and clean design, with no additional graphics or decorations.	[ "Massachusetts", "Maryland", "Rhode Island", "Connecticut" ]		closed choice
middle	Look at the models of molecules below. Select the elementary substance.	1,591	0	The image shows a 3D representation of the molecular structure of methanol. Methanol is an organic compound composed of carbon, hydrogen, and oxygen atoms. In this image, the atoms are represented by different colored spheres: blue for nitrogen (N), red for oxygen (O), and white for hydrogen (H). The carbon atom is not visible in this image. The arrangement of the atoms in the molecule indicates that there is one oxygen atom bonded to one carbon atom, which is in turn bonded to three hydrogen atoms. This is the basic structure of methanol, a common solvent and fuel component.	[ "nitrogen", "methanol", "methane" ]		closed choice
middle	What is the probability that a tomato plant produced by this cross will have regular leaves?	1,595	3	The image shows a 3x3 grid with the letters "L" and "I" in different combinations. The top row has "L" in all three squares, the middle row has "LL" in the first two squares and "I" in the third square, and the bottom row has "I" in the first two squares and "LI" in the third square. The background of the grid is white, and the letters are in black.	[ "2/4", "4/4", "1/4", "3/4", "0/4" ]	This passage describes the leaf type trait in tomato plants: Tomato leaves come in many types, including regular leaves and potato leaves. Regular leaves are small and have jagged edges. Potato leaves are large and have smooth edges. In a group of tomato plants, some individuals have regular leaves and others have potato leaves. In this group, the gene for the leaf type trait has two alleles. The allele for potato leaves (l) is recessive to the allele for regular leaves (L). This Punnett square shows a cross between two tomato plants.	closed choice
middle	What can Jim and Sasha trade to each get what they want?	1,605	3	The image shows a list of five items, each preceded by a blue bullet point. The items listed are "a hot dog," "tomatoes," "almonds," and "water." The text is presented in a simple, unadorned font on a plain white background.	[ "Jim can trade his tomatoes for Sasha's carrots.", "Sasha can trade her almonds for Jim's tomatoes.", "Sasha can trade her broccoli for Jim's oranges.", "Jim can trade his tomatoes for Sasha's broccoli." ]	Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another. Jim and Sasha open their lunch boxes in the school cafeteria. Neither Jim nor Sasha got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Jim's lunch Sasha's lunch	closed choice
middle	What is the probability that a rock pocket mouse produced by this cross will be homozygous dominant for the fur color gene?	1,606	2	The image shows a 2x2 matrix with the letters "f" and "F" in each cell. The top left cell has a lowercase "f", the top right cell has an uppercase "F", the bottom left cell has a lowercase "f" with a blue outline, and the bottom right cell has an uppercase "F" with a blue outline. The matrix is enclosed within a black border.	[ "4/4", "2/4", "0/4", "3/4", "1/4" ]	In a group of rock pocket mice, some individuals have dark fur and others have light fur. In this group, the gene for the fur color trait has two alleles. The allele for dark fur (F) is dominant over the allele for light fur (f). This Punnett square shows a cross between two rock pocket mice.	closed choice
difficult	Which term matches the picture?	1,616	0	The image shows a close-up of a brown dog with its mouth open, tongue sticking out. The dog's eyes are half-closed and it appears to be panting, possibly from exertion or heat. The background is blurred, but it looks like the dog might be outdoors, as there are hints of greenery that could be grass or plants. The dog's teeth are visible in its mouth, and there is some saliva hanging from its chin, indicating that the dog has been panting for a while. The overall impression is that the dog is tired but content, possibly after playing or exercising.	[ "endotherm", "ectotherm" ]	Read the text. Most reptiles and amphibians are ectotherms. This means that when the surrounding environment is cold, their body temperatures drop, and when the surrounding environment is warm, their body temperatures rise. You may see a lizard trying to warm itself up by lying out in the sun; this is because it cannot warm itself up on its own. In contrast to ectotherms, endotherms, like humans and other mammals, can regulate their temperatures internally. Sweating, shivering, or panting are some ways that endotherms can maintain their temperatures in hot or cold environments.	closed choice
middle	Does this passage describe the weather or the climate?	1,636	0	The image shows a wooden bench with metal armrests and legs, situated on a grassy area. The bench is facing towards a city skyline in the background, which includes tall buildings and a distinctive tower that resembles the Space Needle. The sky above the city is partly cloudy, with patches of blue sky visible. There is also a metal railing in front of the bench, possibly indicating a boundary or a viewpoint area. The overall setting suggests a peaceful park or garden within or near an urban environment.	[ "climate", "weather" ]	Figure: Seattle. Rising air in a low pressure system can cause clouds to build up in the sky. Low pressure systems are common in Seattle during the months of December, January, and February. Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place.	closed choice
middle	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,644	0	The image shows two circular diagrams with three concentric circles each, representing a pie chart-like illustration. The outermost circle is labeled "S," the middle circle is labeled "N," and the innermost circle is also labeled "S." The colors of the circles are not specified in the image. The diagrams are presented side by side, with the left diagram having a vertical line extending downwards from the bottom edge of the circle, and the right diagram having no such line. The overall style of the image is simple and graphic, with clean lines and minimal detail.	[ "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is the same in both pairs." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.	closed choice
middle	Complete the text to describe the diagram. Solute particles moved in both directions across the permeable membrane. But more solute particles moved across the membrane (). When there was an equal concentration on both sides, the particles reached equilibrium.	1,649	0	The image shows a series of three blue rectangular panels, each containing green dots. The top panel has the fewest number of dots, with only two dots placed near the center. The middle panel has more dots than the top one, with four dots arranged in a square pattern. The bottom panel has the most dots, with six dots placed in a hexagonal pattern. There is an arrow pointing downwards between the middle and bottom panels, indicating a transition or progression from one panel to the next.	[ "to the left than to the right", "to the right than to the left" ]	The diagram below shows a solution with one solute. Each solute particle is represented by a green ball. The solution fills a closed container that is divided in half by a membrane. The membrane, represented by a dotted line, is permeable to the solute particles. The diagram shows how the solution can change over time during the process of diffusion.	closed choice
middle	Which country is highlighted?	1,652	3	The image is a map showing the location of a disputed island in the ocean. The island is represented by a green rectangle and is located near the coast of Australia, which is depicted in green on the left side of the map. The ocean surrounding the island is shown in blue, and there are several smaller islands scattered throughout the area. The label "Disputed Island" is placed next to the green rectangle, indicating that the island is the subject of a territorial dispute.	[ "Vanuatu", "Solomon Islands", "Samoa", "the Marshall Islands" ]		closed choice
middle	Which continent is highlighted?	1,654	0	The image is a map of the world, with the continents depicted in green and the oceans in blue. The map is centered on the Atlantic Ocean, with North America to the left and Europe and Africa to the right. South America is visible at the bottom left corner of the map, while Asia and Australia are not fully shown. The map does not include any labels or names of countries, making it difficult to identify specific locations. The overall design is simple and clear, with no additional graphics or symbols.	[ "Australia", "Europe", "Asia", "North America" ]		closed choice
middle	Which solution has a higher concentration of pink particles?	1,665	0	The image shows two volumetric flasks, each containing a solution with pink spherical particles. The flask on the left is labeled "Solution A" and has a volume of 35 mL. The flask on the right is labeled "Solvent volume: 35 mL" and also contains a solution with a volume of 35 mL. Both flasks have a similar appearance and contain the same number of pink particles.	[ "Solution A", "neither; their concentrations are the same", "Solution B" ]	The diagram below is a model of two solutions. Each pink ball represents one particle of solute.	closed choice
difficult	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	1,674	1	The image shows three green square buttons with the letter "S" in white text on each button. The buttons are arranged in a horizontal row, with equal spacing between them. The background of the image is white.	[ "The magnetic force is stronger in Pair 1.", "The strength of the magnetic force is the same in both pairs.", "The magnetic force is stronger in Pair 2." ]	The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.	closed choice
middle	During this time, thermal energy was transferred from () to ().	1,681	0	The image shows a pink background with white text. The text is divided into two sections, each containing the number "22" in bold, black font. The top section has the word "Initial" above the number "22," while the bottom section has the word "Final" above the number "22." The overall layout of the image is simple and straightforward, with a clear emphasis on the numbers "22" as the main focus.	[ "the surroundings . . . each salmon", "each salmon . . . the surroundings" ]	Brian lit the charcoal in his grill to cook two identical salmon. He put one fish on the left half of the grill and one fish on the right half of the grill. This table shows how the temperature of each salmon changed over 6minutes.	closed choice
middle	What is the probability that a pea plant produced by this cross will be homozygous recessive for the stem height gene?	1,689	3	The image shows a 3x3 grid with the letters "H" and "h" in different combinations. The top row has "H" in all three squares, the middle row has "H" in the first square, "h" in the second square, and "H" in the third square, and the bottom row has "h" in all three squares. The grid is enclosed in a white border.	[ "3/4", "1/4", "0/4", "2/4", "4/4" ]	In a group of pea plants, some individuals have a tall stem and others have a short stem. In this group, the gene for the stem height trait has two alleles. The allele for a tall stem (H) is dominant over the allele for a short stem (h). This Punnett square shows a cross between two pea plants.	closed choice
middle	Which better describes the Białowieża Forest ecosystem?	1,710	1	The image shows a lush green forest with tall trees and thick underbrush. The trees have bright green leaves, indicating that it is likely spring or summer. The sunlight filters through the canopy, creating patches of light on the forest floor. The ground is covered in a dense layer of ferns and other green plants, giving the impression of a healthy and thriving ecosystem. The forest appears to be undisturbed and peaceful, with no signs of human activity or wildlife.	[ "It has soil that is poor in nutrients. It also has only a few types of trees.", "It has soil that is rich in nutrients. It also has only a few types of trees." ]	Figure: Białowieża Forest. The Białowieża Forest is a temperate deciduous forest ecosystem in Poland and Belarus.	closed choice
middle	What is the name of the colony shown?	1,717	3	The image is a map of the United States, with the states colored in green and the oceans in blue. The map shows the eastern half of the country, with the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, and Florida visible. The map does not show any labels or names of the states, but their shapes and borders are clearly defined. The overall color scheme is simple, with the green representing land and the blue representing water.	[ "Mississippi", "New York", "New Jersey", "Delaware" ]		closed choice
middle	Is the following statement about our solar system true or false? Jupiter's volume is more than ten times as large as Saturn's volume.	1,724	0	The image is a table that lists the volume of each planet in our solar system, measured in kilometers cubed (km³). The table also includes information about the primary composition of each planet. The planets listed are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The primary compositions listed for each planet are rock, gas, and ice. The table is organized with the planets listed in order of their distance from the sun, with Mercury being the closest and Neptune being the farthest.	[ "false", "true" ]	Use the data to answer the question below.	true-or false
middle	What is the name of the colony shown?	1,728	0	The image is a map of the eastern United States, with the states highlighted in green. The map shows the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, Pennsylvania, New Jersey, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, and parts of Alabama, Mississippi, and Tennessee. The map also shows the Atlantic Ocean to the east and parts of Canada to the north. The map has a simple design with no labels or additional information provided.	[ "Rhode Island", "Kentucky", "Connecticut", "Mississippi" ]		closed choice
middle	Which property matches this object?	1,754	1	The image shows a glass of red grape juice with a blue rim, filled with dark red liquid. There are several whole red grapes and green leaves arranged around the base of the glass. The text "grape juice" is written in black letters at the bottom of the image.	[ "salty", "sweet" ]	Select the better answer.	closed choice
middle	Which solution has a higher concentration of pink particles?	1,762	0	The image shows two flasks labeled as "Solution A" and "Solution B". Both flasks contain a clear solvent and purple solute particles. The label on the left flask indicates that the volume of the solvent is 30 mL, while the label on the right flask also indicates that the volume of the solvent is 30 mL. The image appears to be a representation of two solutions with the same volume of solvent, but it is not clear what the difference is between Solution A and Solution B.	[ "Solution B", "Solution A", "neither; their concentrations are the same" ]	The diagram below is a model of two solutions. Each pink ball represents one particle of solute.	closed choice
middle	What can Tony and Celine trade to each get what they want?	1,775	0	The image shows a list of items with blue bullet points next to each one. The items listed are "a hot dog," "tomatoes," "almonds," and "water." The background is white, and there is a green border on the left side of the image.	[ "Tony can trade his tomatoes for Celine's broccoli.", "Celine can trade her almonds for Tony's tomatoes.", "Tony can trade his tomatoes for Celine's carrots.", "Celine can trade her broccoli for Tony's oranges." ]	Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another. Tony and Celine open their lunch boxes in the school cafeteria. Neither Tony nor Celine got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Tony's lunch Celine's lunch	closed choice
middle	Which ocean is highlighted?	1,802	0	The image is a simplified world map with the continents represented in green and the oceans in blue. The map is centered on the Atlantic Ocean, with Africa to the left and South America to the right. The map does not show any country borders or labels, making it difficult to identify specific locations. The map appears to be a basic representation of the world's geography.	[ "the Indian Ocean", "the Atlantic Ocean", "the Arctic Ocean", "the Southern Ocean" ]		closed choice
middle	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	1,809	1	The image shows two jars labeled "Sample A" and "Sample B". Both jars contain blue particles with white lines around them, indicating their motion. The label on Sample A indicates that the mass of each particle is 46 u (unified atomic mass units) and the average particle speed is 610 m/s. The label on Sample B indicates that the mass of each particle is 46 u as well, but the average particle speed is not specified.	[ "neither; the samples have the same temperature", "sample A", "sample B" ]	The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.	closed choice
middle	Which property do these two objects have in common?	1,813	1	The image shows two separate pictures of a honey container and an ice cream cone. The honey container is on the left side and it has a yellow color with a brown lid and a spout for pouring the honey. The ice cream cone is on the right side and it has a pink color with a chocolate topping and a strawberry on top. Both images have labels underneath them, with "honey" written under the honey container and "ice cream" written under the ice cream cone.	[ "bouncy", "sticky" ]	Select the better answer.	closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

863

0

The image shows two jars labeled Sample A and Sample B, each containing a different number of particles. Sample A has 28 particles with an average mass of 1 u and an average particle speed of 1,000 m/s. Sample B has an unspecified number of particles with an average mass of 28 u and an average particle speed of 1,000 m/s. The particles in both samples are depicted as small circles with different colors for each sample.

[ "sample B", "sample A", "neither; the samples have the same temperature" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which property do these four objects have in common?

897

2

The image shows two separate pictures side by side. On the left, there is a picture of a single cracker with holes in it, labeled "cracker." On the right, there is a picture of an ocean wave with a blue background, labeled "ocean wave." The images are presented in a simple, cartoon-like style with bold outlines and flat colors.

[ "flexible", "opaque", "salty" ]

Select the best answer.

closed choice

middle

What is the expected ratio of offspring with straight fur to offspring with curly fur? Choose the most likely ratio.

899

4

The image shows a 2x2 matrix with the letters "F" and "f" in each cell. The top left cell has the letter "F" in black font, the top right cell has the letter "f" in blue font, the bottom left cell has the letter "F" in blue font, and the bottom right cell has the letter "f" in black font. The matrix is enclosed in a black border.

[ "2:2", "0:4", "3:1", "1:3", "4:0" ]

In a group of cats, some individuals have straight fur and others have curly fur. In this group, the gene for the fur type trait has two alleles. The allele for curly fur (f) is recessive to the allele for straight fur (F). This Punnett square shows a cross between two cats.

closed choice

difficult

Which country is highlighted?

910

1

The image is a map of the world, with a focus on the southern hemisphere. The map shows the continents of Australia and New Zealand in green, with the surrounding oceans in blue. There is a small square highlighted in yellow, which appears to be a specific area of interest within the map. The map does not show any labels or names of countries, making it difficult to identify specific locations without prior knowledge of geography.

[ "New Zealand", "Nauru", "the Marshall Islands", "Vanuatu" ]

closed choice

middle

The Inca created a large civilization in South America. Which letter marks the territory of the Inca?

917

0

The image is a map of South America, showing the continent in white and the surrounding oceans in blue. The map includes labels for different regions of South America, with the letters A, B, C, and D indicating specific areas. There is also a compass rose in the bottom left corner, indicating north, south, east, and west directions. The map has a scale at the bottom right corner, showing the distance of 1,000 miles.

[ "D", "B", "A", "C" ]

The following map shows the location of several civilizations that began in North and South America. Civilizations are organized human communities. Look at the map. Then answer the question below.

closed choice

middle

Which of these states is farthest west?

922

1

The image is a map of the United States, with the states of Wisconsin, Kansas, and Louisiana highlighted in green. The rest of the country is shown in a light blue color, with the oceans on the east and west coasts depicted in a darker blue. The map does not show any labels or names of the states, but it is clear which states are highlighted due to their distinct green color.

[ "Wisconsin", "Kansas", "Louisiana", "Maryland" ]

closed choice

middle

Which solution has a higher concentration of yellow particles?

941

0

The image shows two beakers, each containing a yellow solution. The beaker on the left is labeled "Solution A" and has a volume of 25 mL. The beaker on the right is labeled "Solvent volume: 25 mL" and also contains a yellow solution with a volume of 25 mL. Both beakers have a blue base and a white neck. The background of the image is white.

[ "Solution A", "neither; their concentrations are the same", "Solution B" ]

The diagram below is a model of two solutions. Each yellow ball represents one particle of solute.

closed choice

middle

Which of these states is farthest east?

948

2

The image is a map of the United States, with the states of North Dakota, Vermont, Ohio, and North Carolina highlighted in green. The map shows the borders of each state, as well as the surrounding bodies of water such as the Pacific Ocean, the Atlantic Ocean, and the Great Lakes. The map does not show any labels or names of the states, but it is clear which states are being highlighted.

[ "North Dakota", "North Carolina", "Vermont", "Ohio" ]

closed choice

middle

Which three months have an average precipitation of around 3.5inches in Seattle?

950

0

The image is a bar graph showing the average precipitation in Seattle, Washington for each month of the year. The x-axis represents the months, from January to December, and the y-axis represents the amount of precipitation in inches. Each bar is color-coded to represent a different month, with January being red, February being orange, March being yellow, April being green, May being blue, June being purple, July being pink, August being brown, September being black, October being gray, November being light blue, and December being dark blue. The bars vary in height, with some months having significantly more precipitation than others.

[ "February, March, and October", "May, June, and October", "April, May, and November" ]

Use the graph to answer the question below.

closed choice

difficult

What is the name of the colony shown?

951

2

The image appears to be a map of the northeastern United States, with the states highlighted in green. The highlighted states include Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut. The map also shows parts of New York and Pennsylvania, but they are not highlighted. The map is set against a light blue background, representing water, and there is a darker blue area on the right side, likely representing the Atlantic Ocean. The map does not have any labels or names of the states, so it may be difficult for someone unfamiliar with the region to identify the specific states.

[ "Tennessee", "Rhode Island", "New Hampshire", "Connecticut" ]

closed choice

middle

Which property do these three objects have in common?

956

0

The image shows a blue wool sweater with a crew neckline. The sweater features a cable knit pattern on the front, with vertical cables running down the center and smaller cables on either side. There are also horizontal cables at the hemline and cuffs. The sweater has a ribbed hem and cuffs for a snug fit. It is designed to be worn as a mid-layer under other clothing or as a standalone piece in cooler weather.

[ "scratchy", "fuzzy", "hard" ]

Select the best answer.

closed choice

difficult

Which solution has a higher concentration of green particles?

977

1

The image shows two flasks labeled as "Solution A" and "Solution B". Both flasks contain a green solvent, with Solution A having 25 mL of solvent and Solution B having an unspecified volume of solvent. The flasks are transparent and the solvent is represented by green circles.

[ "Solution B", "Solution A", "neither; their concentrations are the same" ]

The diagram below is a model of two solutions. Each green ball represents one particle of solute.

closed choice

middle

Which of these oceans does the prime meridian intersect?

979

0

The image is a world map that shows the different continents and oceans of the Earth. The continents are depicted in green, while the oceans are shown in blue. The map also includes labels for each continent and ocean, such as "Europe," "Asia," "Africa," "South America," "North America," "Antarctica," "Arctic Ocean," "Atlantic Ocean," "Indian Ocean," "Pacific Ocean," and "Southern Ocean." The map has a grid system with lines of latitude and longitude marked in degrees, indicating the position of each location on the globe.

[ "the Arctic Ocean", "the Pacific Ocean", "the Indian Ocean" ]

closed choice

middle

Which country is highlighted?

991

3

The image is a map of the world, with a focus on the southern hemisphere. The landmasses are depicted in green, while the oceans are shown in blue. The map highlights the vastness of the oceans and the relatively small size of the landmasses. The continents of Australia and South America are prominently featured, with Australia being the largest landmass visible on the map. The map also shows the numerous small islands scattered throughout the oceans. The overall impression is one of the isolation and remoteness of these landmasses in the vast expanse of the oceans.

[ "Tuvalu", "Solomon Islands", "the Marshall Islands", "Fiji" ]

closed choice

middle

Which solution has a higher concentration of purple particles?

994

1

The image shows two beakers labeled "Solution A" and "Solution B". Both beakers contain a clear solvent with purple spheres dispersed throughout. The label on Solution A indicates that the volume of the solvent is 45 mL, while the label on Solution B does not provide any information about the volume of the solvent.

[ "neither; their concentrations are the same", "Solution B", "Solution A" ]

The diagram below is a model of two solutions. Each purple ball represents one particle of solute.

closed choice

difficult

Will these magnets attract or repel each other?

1,000

0

The image is completely white and does not contain any visible elements or objects. It appears to be a blank space with no content or description.

[ "attract", "repel" ]

Two magnets are placed as shown.

closed choice

middle

Which of the following organisms is the tertiary consumer in this food web?

1,002

0

The image is a food web diagram that shows the relationships between different organisms in a forest ecosystem. At the top of the food web is the persimmon tree, which serves as a primary source of food for the black bear and gray fox. The black bear also preys on the beaver, while the gray fox feeds on the pine vole and parasol. The black racer snake preys on the pine vole and parasol, and the silver maple fungus feeds on the pine vole and parasol. The diagram also includes arrows indicating the direction of energy flow from one organism to another.

[ "black racer", "silver maple", "beaver", "black bear" ]

Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia. A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem.

closed choice

middle

Which continent is highlighted?

1,005

3

The image is a simplified world map with the continents depicted in green and the oceans in blue. The map does not show any country borders or labels, making it difficult to identify specific regions. The map appears to be a basic representation of the world's geography, without any detailed information.

[ "South America", "Australia", "Africa", "Antarctica" ]

closed choice

middle

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,026

1

The image shows two squares, one on the left and one on the right. Both squares are divided into two sections, with the top section being purple and the bottom section being blue. In the center of each purple section, there is a white letter "N" written in all caps. The squares are outlined in black, creating a border around them. The background of the image is white.

[ "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is greater in Pair 1." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes.

closed choice

middle

Which property do these four objects have in common?

1,032

1

The image shows two different types of bottles. On the left side, there is a glass bottle with a green cap and a yellow label that reads "apple juice". On the right side, there is a ceramic bottle with a gold-colored rim and a white body. The bottles are placed against a white background.

[ "sweet", "fragile", "opaque" ]

Select the best answer.

closed choice

middle

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,033

0

The image shows a rectangular button with a green background and a purple border. The button has the letter "N" in white text on the green background. The button appears to be part of a user interface, possibly for a software application or website.

[ "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is the same in both pairs." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

closed choice

middle

Which country is highlighted?

1,039

1

The image is a map of the Caribbean region, showing various islands and countries. The map is predominantly blue, representing the ocean, with green land masses indicating the islands. The largest island on the map is Cuba, located in the top left corner. Other notable islands include Hispaniola (shared by Haiti and the Dominican Republic), Jamaica, and Puerto Rico. The map also shows smaller island nations such as the Bahamas, Barbados, and Trinidad and Tobago. The map does not show any political borders or labels, but the relative positions of the islands give an idea of their geographical locations.

[ "Antigua and Barbuda", "Haiti", "Cuba", "Saint Vincent and the Grenadines" ]

closed choice

middle

Which ocean is highlighted?

1,049

3

The image is a map of the world, with the continents depicted in green and the oceans in blue. The map is centered on Africa, with Europe to the north and South America to the west. The map does not show any labels or names of countries, but it does show the general shapes and outlines of the continents. The map has a simple and clear design, with no additional details or decorations.

[ "the Arctic Ocean", "the Southern Ocean", "the Atlantic Ocean", "the Indian Ocean" ]

closed choice

middle

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,058

2

The image shows two circular diagrams divided into three sections each. The sections are colored green, purple, and a lighter shade of green. Each section is labeled with the letters "N," "S," and "N" respectively. The diagrams appear to be a representation of a compass or a map, with the "N" sections representing north, the "S" section representing south, and the lighter green sections representing east and west. The diagrams are symmetrical and have a simple, clean design.

[ "The magnetic force is weaker in Pair 2.", "The strength of the magnetic force is the same in both pairs.", "The magnetic force is weaker in Pair 1." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

closed choice

middle

Which trait did Eryma have? Select the trait you can observe on the fossil.

1,063

0

The image shows a close-up of a small, light-colored shrimp with its claws open and extended. The shrimp appears to be on a textured surface that could be a piece of paper or fabric. The background is a neutral color, providing a contrast to the shrimp's lighter hue. The image has a shallow depth of field, with the focus primarily on the shrimp, causing the background to blur slightly. There are no visible texts or distinguishing marks that provide additional context about the image.

[ "antennae", "a round, flat body" ]

This picture shows a fossil of an ancient animal called Eryma. Fossils of Eryma have been found in deposits of shale and limestone. Some Eryma fossils are more than 100,000,000 years old.

closed choice

middle

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,069

2

The image shows two identical green triangles with a white outline, each containing the letter "S" in white. The triangles are placed on a white background and are separated by a small amount of space. The overall design is simple and symmetrical.

[ "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is the same in both pairs." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

closed choice

middle

Which of the following organisms is the secondary consumer in this food web?

1,078

1

The image depicts a forest ecosystem with various elements labeled. At the top left, there is a persimmon tree with ripe persimmons hanging from its branches. Below the persimmon tree, there are two black bears walking on a rocky path. To the right of the bears, there is a gray fox standing on its hind legs. Below the fox, there is a black racer snake slithering through the grass. To the left of the snake, there is a beaver gnawing on a tree trunk. Below the beaver, there is a pine vole burrowing in the ground. To the right of the vole, there is a fungus growing on a fallen log. Below the fungus, there is a silver maple tree with its leaves rustling in the wind. The image also includes arrows connecting the different elements to show how they interact and depend on each other within the ecosystem.

[ "persimmon tree", "black bear", "beaver", "swallowtail caterpillar" ]

Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia. A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem.

closed choice

middle

Which animal's skin is better adapted to hurt an attacking predator?

1,109

1

The image shows a porcupine standing on a rocky surface. The porcupine has a large, spiky quill covering its back and sides, which is a characteristic feature of this animal. Its fur appears to be a mix of brown and black colors, with the quills being a lighter, almost white color at their tips. The porcupine's head is turned slightly to the side, and it seems to be looking down towards the ground, possibly searching for food or inspecting its surroundings. The background is blurred, but it looks like a natural, outdoor setting with rocks and possibly some vegetation.

[ "fantastic leaf-tailed gecko", "blowfish" ]

Porcupines have sharp spines covering much of their skin. These spines are called quills. The skin of the is adapted to hurt an attacking predator. Figure: porcupine.

closed choice

middle

Which continent is highlighted?

1,121

1

The image is a world map with the continents colored in green and the oceans in blue. The map is presented in a flat earth style, with the North Pole at the center and the continents radiating outwards. The map does not show any political borders or labels, just the general shape of the continents. The map also includes the Arctic Ocean at the top and the Southern Ocean at the bottom, surrounding Antarctica.

[ "Antarctica", "Asia", "Africa", "North America" ]

closed choice

middle

Which is the main persuasive appeal used in this ad?

1,122

1

The image features a graphic design with a promotional message. It shows a hand holding a credit card, which is labeled "ZUMIO Credit Card." The card has a golden color scheme with the number "5234 56789012345" visible on its front. To the left of the card, there are three green dollar bills being held by the same hand, suggesting a cashback offer. Above the card and the dollars, there's text that reads "9% CASH BACK ON ZDAY PURCHASES WITH THE ZUMIO CREDIT CARD." This indicates a special promotion offering a 9% cashback on purchases made on a specific day, referred to as "Zday," for those who use the ZUMIO Credit Card. The background of the image is a solid blue, which contrasts with the golden card and green dollars, making the promotional elements stand out.

[ "pathos (emotion)", "logos (reason)", "ethos (character)" ]

closed choice

middle

What is the probability that a human produced by this cross will be heterozygous for the xeroderma pigmentosum gene?

1,126

1

The image shows a 3x3 grid with the letter "e" in different font sizes and styles. The top row has the letter "e" in a small, bold font, the middle row has the letter "e" in a larger, italic font, and the bottom row has the letter "e" in an even larger, bold font. Each row also has two additional "e" letters, one in a smaller font size and one in a larger font size, both in the same style as the main "e" in that row. The background of the grid is white, and the grid lines are thin and black.

[ "4/4", "2/4", "3/4", "0/4", "1/4" ]

This passage describes the xeroderma pigmentosum trait in humans: Xeroderma pigmentosum is a condition that causes skin to be easily damaged by sunlight. Humans with xeroderma pigmentosum avoid exposure to sunlight by wearing protective clothing, using sunscreen, and not going outside during the day. In a group of humans, some individuals have xeroderma pigmentosum and others do not. In this group, the gene for the xeroderma pigmentosum trait has two alleles. The allele for not having xeroderma pigmentosum (E) is dominant over the allele for having xeroderma pigmentosum (e). This Punnett square shows a cross between two humans.

closed choice

middle

What can Olivia and Cara trade to each get what they want?

1,137

0

The image shows a list of items with bullet points. The items listed are "a hot dog," "tomatoes," "almonds," and "water." The background of the image is white, and there is a pink border on the left side of the image.

[ "Olivia can trade her tomatoes for Cara's broccoli.", "Cara can trade her almonds for Olivia's tomatoes.", "Cara can trade her broccoli for Olivia's oranges.", "Olivia can trade her tomatoes for Cara's carrots." ]

Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another. Olivia and Cara open their lunch boxes in the school cafeteria. Neither Olivia nor Cara got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Olivia's lunch Cara's lunch

closed choice

middle

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,150

2

The image shows two circular diagrams, each divided into two colored segments. The segment on the left is blue and labeled "N," while the segment on the right is green and labeled "S." The circles are enclosed within a larger white circle, and there is a horizontal line at the bottom of the image.

[ "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is smaller in Pair 1.", "The magnitude of the magnetic force is smaller in Pair 2." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

closed choice

middle

What is the name of the colony shown?

1,152

2

The image is a map of the eastern United States, with the states highlighted in green. The map shows the Atlantic Ocean to the east, and the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, Alabama, Mississippi, Louisiana, Texas, and parts of Arkansas and Tennessee. The map does not show any specific cities or landmarks, but it provides a general overview of the eastern region of the country.

[ "Virginia", "Alabama", "Maryland", "New Jersey" ]

closed choice

difficult

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,155

0

The image shows two jars labeled "Sample A" and "Sample B". Both jars contain blue particles with the same mass of 32 u. However, the average particle speed is different between the two samples. Sample A has an average particle speed of 760 m/s, while Sample B has an average particle speed that is not specified in the image. The jars are depicted against a white background.

[ "sample A", "neither; the samples have the same temperature", "sample B" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which property matches this object?

1,160

1

The image shows a brown sanding block with a textured surface. The block has a rectangular shape with rounded edges and is designed to be held in one hand for sanding purposes. The texture on the block appears to be made up of small grooves or ridges that would help to remove material from surfaces during the sanding process. The color of the block is a uniform brown, suggesting it may be made from a material such as wood or a wood-like composite. The background of the image is white, which contrasts with the brown color of the sanding block, making the block stand out clearly.

[ "yellow", "rough" ]

Select the better answer.

closed choice

difficult

Which term matches the picture?

1,166

1

The image shows a bunch of ginger roots with a rough and knobby texture. The ginger is arranged in a circular pattern, with the roots pointing outwards. The color of the ginger is a light brown with some darker brown spots. The background is white, which makes the ginger stand out more prominently. The ginger appears to be fresh and ready for use in cooking or as a natural remedy.

[ "stem tuber", "rhizome" ]

Read the text. Some plants have underground stems that branch out in a fingerlike pattern. Botanists call these stems rhizomes. Some of these branching stems, such as the turmeric rhizome, are highly prized for the spices that can be extracted from them. Like rhizomes, stem tubers are specialized structures that plants use to deliver nutrients. While rhizomes usually contain many horizontal finger-like branches, though, stem tubers are usually thick and oval-shaped, such as potatoes.

closed choice

middle

Which property do these three objects have in common?

1,179

2

The image shows a colorful inflatable castle with yellow and red towers, a purple base, and blue walls. The castle appears to be designed for children's play and is likely used at parties or events.

[ "fragile", "transparent", "colorful" ]

Select the best answer.

closed choice

middle

What can Dalton and Elise trade to each get what they want?

1,193

1

The image shows a list of items with their corresponding images. The items listed are "a hot dog," "tomatoes," "almonds," and "water." Each item has a small image next to it, with the exception of "water," which does not have an image. The background of the image is white, and there is a thin orange line at the top.

[ "Elise can trade her almonds for Dalton's tomatoes.", "Dalton can trade his tomatoes for Elise's broccoli.", "Elise can trade her broccoli for Dalton's oranges.", "Dalton can trade his tomatoes for Elise's carrots." ]

Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another. Dalton and Elise open their lunch boxes in the school cafeteria. Neither Dalton nor Elise got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Dalton's lunch Elise's lunch

closed choice

middle

Is the following statement about our solar system true or false? The volume of Neptune is less than 75% of the volume of Uranus.

1,196

1

The image is a table with two columns. The first column lists various volume measurements in billions of km3, ranging from 60 to 1,431.280. The second column lists the primary component associated with each volume measurement, which includes rock, gas, and ice. The table appears to be organized in ascending order based on the volume measurements.

[ "true", "false" ]

Use the data to answer the question below.

true-or false

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,198

1

The image shows two jars labeled "Sample A" and "Sample B". Each jar contains particles with different properties. Sample A has green particles with an average mass of 46 u and an average particle speed of 1,100 m/s. Sample B has blue particles with the same average mass of 46 u but a lower average particle speed of 100 m/s. The jars are placed side by side, with Sample A on the left and Sample B on the right.

[ "neither; the samples have the same temperature", "sample A", "sample B" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,213

2

The image shows two jars labeled Sample A and Sample B. Both jars contain green particles, but the particles in Sample A have an average mass of 36 u (unified atomic mass units) and an average speed of 1,000 m/s, while the particles in Sample B have the same average mass but a lower average speed of 500 m/s. The particles in both samples are depicted as moving and emitting lines that represent their motion.

[ "sample B", "sample A", "neither; the samples have the same temperature" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which solution has a higher concentration of pink particles?

1,217

0

The image shows two beakers labeled as "Solution A" and "Solution B". Both beakers have a volume of 20 mL. Solution A has a clear solvent with no solute particles visible, while Solution B has a clear solvent with several purple solute particles suspended in it. The image is likely used to illustrate the concept of solubility and concentration in chemistry.

[ "Solution B", "Solution A", "neither; their concentrations are the same" ]

The diagram below is a model of two solutions. Each pink ball represents one particle of solute.

closed choice

middle

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,227

2

The image shows two squares, one on the left and one on the right. Both squares have a blue background with an orange rectangle in the center. The orange rectangle on the left square is slightly larger than the one on the right square. There is also a small white letter "S" in the bottom right corner of both rectangles. The overall design is simple and symmetrical.

[ "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is greater in Pair 1." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes.

closed choice

difficult

Which solution has a higher concentration of purple particles?

1,237

0

The image shows two flasks labeled as "Solution A" and "Solution B". Both flasks contain a blue solvent, with Solution A having 40 mL of solvent and Solution B having an unspecified volume of solvent. The flasks are transparent, allowing the blue solvent to be visible inside.

[ "Solution B", "neither; their concentrations are the same", "Solution A" ]

The diagram below is a model of two solutions. Each purple ball represents one particle of solute.

closed choice

middle

Which country is highlighted?

1,243

3

The image is a map of Australia and its surrounding islands. The map shows the mainland of Australia in green, with the states and territories outlined in white. To the north of Australia, there are several smaller islands, including the Solomon Islands, Vanuatu, and New Caledonia. To the east, there are the New Hebrides and the Loyalty Islands. To the south, there is New Zealand. The map also shows a large body of water to the west of Australia, which is likely the Indian Ocean. There is a small rectangular area highlighted in yellow on the mainland of Australia, but it is not clear what this area represents.

[ "Samoa", "Fiji", "Tuvalu", "Tonga" ]

closed choice

difficult

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,251

1

The image shows two jars labeled "Sample A" and "Sample B". Sample A contains green particles with an average mass of 30 u and an average particle speed of 1,600 m/s. Sample B contains blue particles with the same average mass and average particle speed as Sample A. The image is likely used to demonstrate the concept of kinetic energy in physics.

[ "neither; the samples have the same temperature", "sample A", "sample B" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which property do these four objects have in common?

1,277

2

The image shows two plush toys representing a kiwi bird. On the left side, there is a brown plush toy with a fuzzy texture and a round shape, resembling the appearance of a real kiwi bird. On the right side, there is a red plush toy with black spots, designed to look like a ladybug. Both toys are placed against a white background, and there are labels below each toy that read "kiwi" and "stuffed kiwi," respectively. The image appears to be a product display or an advertisement for these plush toys.

[ "stretchy", "hard", "fuzzy" ]

Select the best answer.

closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,290

0

The image shows two jars labeled as "Sample A" and "Sample B". Both jars contain particles, with Sample A having green particles and Sample B having blue particles. The image also provides information about the mass of each particle in Sample A, which is 32 u, and the average speed of each particle in Sample B, which is 1,100 m/s.

[ "sample A", "sample B", "neither; the samples have the same temperature" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which country is highlighted?

1,292

2

The image is a map of Australia and New Zealand. The map shows the two countries in green, with the surrounding ocean in blue. The map does not show any other countries or geographical features, and there are no labels or text on the map. The map appears to be a simple representation of the two countries, with no political boundaries or regional divisions shown.

[ "Australia", "Papua New Guinea", "New Zealand", "Vanuatu" ]

closed choice

middle

Which of these states is farthest south?

1,297

2

The image is a map of the United States, with all states colored in green except for North Dakota and Vermont, which are not colored. The map shows the borders of each state and the surrounding bodies of water, including the Pacific Ocean, Atlantic Ocean, and the Gulf of Mexico. The map does not include any labels or names of the states, but it is clear that North Dakota and Vermont are the only two states not colored in green.

[ "North Dakota", "Vermont", "Rhode Island", "Maine" ]

closed choice

middle

Which solution has a higher concentration of green particles?

1,326

1

The image shows two flasks containing a solution. The flask on the left is labeled "Solution A" and has a volume of 35 mL. The flask on the right is labeled "Solvent volume: 35 mL" and also has a volume of 35 mL. Both flasks contain green spheres, which represent the solute in the solution. The image is likely used to illustrate the concept of concentration in chemistry, where the volume of solvent remains constant while the amount of solute can vary.

[ "neither; their concentrations are the same", "Solution B", "Solution A" ]

The diagram below is a model of two solutions. Each green ball represents one particle of solute.

closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,334

1

The image shows two jars labeled "Sample A" and "Sample B". Both jars contain particles, with Sample A having blue particles and Sample B having green particles. The mass of each particle in both samples is 16 u, but the average particle speed differs, with Sample A having a speed of 610 m/s and Sample B having an average particle speed that is not specified in the image. The particles in both samples are depicted as moving, as indicated by the lines radiating out from them, suggesting motion or vibration.

[ "neither; the samples have the same temperature", "sample B", "sample A" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which continent is highlighted?

1,336

2

The image is a simplified world map with a blue background representing the oceans and green landmasses representing the continents. The continents are depicted in a stylized manner, with exaggerated shapes and sizes. The map does not show any country borders or labels, making it difficult to identify specific regions. The overall design is minimalist and abstract, focusing on the basic geography of the world.

[ "North America", "Africa", "Australia", "South America" ]

closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,349

1

The image shows two jars labeled "Sample A" and "Sample B". Sample A contains green particles with a mass of 46 u each and an average particle speed of 630 m/s. Sample B contains purple particles with an average particle speed of 450 m/s. The jars are transparent, allowing the viewer to see the particles inside.

[ "neither; the samples have the same temperature", "sample A", "sample B" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which ocean is highlighted?

1,382

1

The image is a stylized map of the world, with countries depicted in shades of green and blue. The oceans are shown in a lighter blue, while the continents are in a darker green. The map does not show any labels or names of countries, but the overall layout and shape of the continents are recognizable. The map has a simple and clean design, with no additional details or features such as topography or borders.

[ "the Southern Ocean", "the Arctic Ocean", "the Indian Ocean", "the Atlantic Ocean" ]

closed choice

difficult

What is the probability that a rose plant produced by this cross will have single flowers?

1,386

1

The image shows a table with four cells, each containing a different combination of the letters "F" and "f". The top left cell has "F", the top right cell has "f", the bottom left cell has "Ff", and the bottom right cell has "ff". The letters are in a bold, sans-serif font and are colored in blue. The background of the table is white.

[ "3/4", "2/4", "1/4", "0/4", "4/4" ]

This passage describes the flower form trait in rose plants: Roses may grow single flowers or double flowers. Double flowers have more petals than single flowers and are highly prized by gardeners. However, these extra petals may block or replace parts of the flower needed for reproduction. This makes double-flowered plants difficult to breed. In a group of rose plants, some individuals have double flowers and others have single flowers. In this group, the gene for the flower form trait has two alleles. The allele for single flowers (f) is recessive to the allele for double flowers (F). This Punnett square shows a cross between two rose plants.

closed choice

difficult

Which month has the lowest average precipitation in London?

1,411

1

The image is a bar graph showing the average precipitation in London, England for each month of the year. The months are listed on the horizontal axis from January to December, and the vertical axis represents the amount of precipitation in millimeters. Each month has a corresponding bar with a different color, ranging from light blue to purple to green to orange. The bars vary in height, indicating the amount of precipitation for that month. The tallest bars represent the months with the most precipitation, while the shortest bars represent the months with the least precipitation.

[ "November", "July", "February" ]

Use the graph to answer the question below.

closed choice

middle

Does this passage describe the weather or the climate?

1,414

1

The image shows a vast, dry landscape with cracked earth that extends towards the horizon. The ground is covered in large, irregularly shaped cracks that create a pattern of broken earth. In the distance, there are mountains with steep slopes and rocky surfaces. The sky is clear and blue, with the sun low on the horizon, casting long shadows and creating a warm, golden light that illuminates the scene. There is a single rock or boulder in the foreground, adding a sense of scale to the image. The overall atmosphere is one of desolation and harshness, with a sense of the relentless power of nature.

[ "climate", "weather" ]

Figure: Death Valley. Death Valley is a desert in eastern California. A record high temperature of 134°F was recorded there on July 10, 1913! Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place.

closed choice

middle

Which specific humidity level was measured within the outlined area shown?

1,425

1

The image appears to be a weather map showing temperature patterns across a geographical area. The map is color-coded, with different colors representing various temperature ranges. The green areas indicate regions with lower temperatures, while the purple and pink areas show locations with higher temperatures. There are numerical values on the top left corner of the map, possibly indicating the latitude and longitude coordinates for the area being represented. The map also has a circular boundary, suggesting that it is focusing on a specific region rather than a global view.

[ "10 grams of water vapor per kilogram of air", "1 grams of water vapor per kilogram of air", "12 grams of water vapor per kilogram of air" ]

The map below shows humidity in the lower atmosphere on March 19, 2017. The map shows specific humidity, a measurement of the amount of water vapor in the air. The outlined area shows an air mass that influenced weather in Asia on that day. Look at the map. Then, answer the question below. Data source: United States National Oceanic and Atmospheric Administration/Earth System Research Laboratory, Physical Sciences Division

closed choice

middle

What is the name of the colony shown?

1,432

2

The image is a map of the eastern United States, with the states colored in green and the surrounding areas in white. The map shows the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, Pennsylvania, New Jersey, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, and parts of Ohio and Michigan. The map also shows the Atlantic Ocean to the east and parts of Canada to the north. The map has a simple and clear design, making it easy to identify the different states and regions.

[ "Pennsylvania", "Kentucky", "Connecticut", "Delaware" ]

closed choice

middle

Which country is highlighted?

1,438

2

The image is a map of the Caribbean region, showing various islands and countries. The map is primarily blue, representing the ocean, with green land masses indicating the islands. The largest island on the map is Cuba, located in the top left corner. Other notable islands include Hispaniola (shared by Haiti and the Dominican Republic), Jamaica, and Puerto Rico. The map also shows smaller island nations such as the Bahamas, Barbados, and Trinidad and Tobago. The map does not include any labels or names of the islands, but their shapes and locations are recognizable to those familiar with the geography of the Caribbean.

[ "Jamaica", "Dominica", "the Dominican Republic", "Haiti" ]

closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,441

2

The image shows two jars labeled "Sample A" and "Sample B". Each jar contains particles of different colors and sizes. Sample A has green particles with an average mass of 36 u and an average particle speed of 1,600 m/s. Sample B has blue particles with the same average mass and speed as Sample A. The image appears to be a scientific representation of two samples with different physical properties.

[ "sample B", "neither; the samples have the same temperature", "sample A" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which material is this bracelet made of?

1,445

0

The image shows a gold-colored necklace with a chain link design. The necklace is circular in shape and appears to be made of a shiny, metallic material. The chain links are evenly spaced and have a consistent size throughout the necklace. The background of the image is plain white, which contrasts with the gold color of the necklace and makes it stand out. There are no other objects or text in the image.

[ "metal", "nylon" ]

closed choice

middle

What is the name of the colony shown?

1,476

1

The image is a map of the United States, with the states colored in green and the oceans in blue. The map shows the eastern coast of the United States, with the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, and parts of Alabama and Mississippi visible. The map does not show any labels or names of the states, but the shape of each state is recognizable. The map has a simple and clear design, with no additional details or decorations.

[ "Michigan", "New Jersey", "Ohio", "Pennsylvania" ]

closed choice

middle

Which property do these four objects have in common?

1,487

2

The image shows two sets of marbles, one set is labeled "marbles" and the other set is labeled "ocean marbles". The marbles on the left are solid red and green, while the ocean marbles on the right are blue with white swirls, resembling waves. The background of the ocean marbles is yellow, suggesting a sandy beach.

[ "opaque", "sweet", "translucent" ]

Select the best answer.

closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,492

2

The image shows two jars labeled as "Sample A" and "Sample B". Both jars contain particles, with Sample A having purple particles and Sample B having green particles. The image also provides information about the properties of the particles in each sample. For Sample A, the mass of each particle is given as 32 u (unified atomic mass units) and the average particle speed is 780 m/s (meters per second). For Sample B, only the average particle speed is provided, which is not specified in the image.

[ "sample A", "neither; the samples have the same temperature", "sample B" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which continent is highlighted?

1,508

0

The image is a simplified world map with only the continents and oceans depicted. The continents are shown in a solid green color, while the oceans are in a light blue color. The map does not show any countries, cities, or other geographical features. It is a basic representation of the world's landmasses and water bodies.

[ "Antarctica", "Europe", "Australia", "North America" ]

closed choice

middle

Which property do these three objects have in common?

1,512

1

The image shows a three-dimensional representation of a metal bar. The bar has a rectangular shape with rounded edges and corners, giving it a smooth and polished appearance. It is colored in shades of blue and silver, suggesting that it is made of a metallic material such as steel or aluminum. The background is white, which contrasts with the bar and makes it stand out. The word "metal bar" is written below the image, indicating what the object is.

[ "flexible", "shiny", "sticky" ]

Select the best answer.

closed choice

difficult

Which solution has a higher concentration of green particles?

1,523

1

The image shows two flasks containing a solution with green spheres. The left flask is labeled "Solution A" and has a volume of 45 mL, while the right flask is labeled "Solvent volume: 45 mL" and also contains 45 mL of the same solution. Both flasks have a blue background and are placed side by side.

[ "neither; their concentrations are the same", "Solution A", "Solution B" ]

The diagram below is a model of two solutions. Each green ball represents one particle of solute.

closed choice

middle

What is the probability that a pea plant produced by this cross will have green pods?

1,524

4

The image shows a 3x3 grid with the letter "d" in each cell. In the center cell, there is an additional "d" written on top of the existing "d", making it appear as "dd". The same "dd" pattern is also present in the bottom left and bottom right cells. The rest of the cells have only one "d" written in them. The background of the grid is white, and the "d"s are written in black.

[ "2/4", "4/4", "1/4", "3/4", "0/4" ]

In a group of pea plants, some individuals have green pods and others have yellow pods. In this group, the gene for the pod color trait has two alleles. The allele for yellow pods (d) is recessive to the allele for green pods (D). This Punnett square shows a cross between two pea plants.

closed choice

middle

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,536

1

The image shows two identical circular diagrams with three concentric rings. The innermost ring is blue, the middle ring is orange, and the outermost ring is a lighter shade of blue. In the center of each diagram, there is a white circle with the letter "N" written in black. The diagrams are presented side by side against a white background.

[ "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is greater in Pair 2." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,553

1

The image shows two jars, labeled Sample A and Sample B, each containing several particles. The particles in Sample A are green and have an average mass of 46 u and an average speed of 1,300 m/s. The particles in Sample B are purple and have the same average mass and speed as Sample A. The image also includes a key indicating that "u" stands for unified atomic mass unit.

[ "neither; the samples have the same temperature", "sample A", "sample B" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which solution has a higher concentration of purple particles?

1,569

0

The image shows two volumetric flasks, each containing a solution with purple spheres representing solute molecules. The volume of the solvent in both flasks is 25 mL. The label on the left flask reads "Solution A" and the label on the right flask reads "Solvent volume: 25 mL". The image appears to be a scientific representation of two different solutions with the same solvent volume.

[ "neither; their concentrations are the same", "Solution B", "Solution A" ]

The diagram below is a model of two solutions. Each purple ball represents one particle of solute.

closed choice

middle

Which property do these two objects have in common?

1,583

1

The image shows two separate pictures of food items. On the left side, there is a single cracker with holes in it, which is labeled as "cracker." On the right side, there is a red container filled with golden-brown french fries, which is labeled as "fries." The background of both images is white, and the text is in black font.

[ "soft", "salty" ]

Select the better answer.

closed choice

middle

What is the name of the colony shown?

1,588

2

The image is a map of the eastern United States, with the states colored in green and the surrounding areas left blank. The map shows the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, and parts of Alabama and Mississippi. The map does not show any labels or names of the states, but the shape of each state is clearly visible. The map has a simple and clean design, with no additional graphics or decorations.

[ "Massachusetts", "Maryland", "Rhode Island", "Connecticut" ]

closed choice

middle

Look at the models of molecules below. Select the elementary substance.

1,591

0

The image shows a 3D representation of the molecular structure of methanol. Methanol is an organic compound composed of carbon, hydrogen, and oxygen atoms. In this image, the atoms are represented by different colored spheres: blue for nitrogen (N), red for oxygen (O), and white for hydrogen (H). The carbon atom is not visible in this image. The arrangement of the atoms in the molecule indicates that there is one oxygen atom bonded to one carbon atom, which is in turn bonded to three hydrogen atoms. This is the basic structure of methanol, a common solvent and fuel component.

[ "nitrogen", "methanol", "methane" ]

closed choice

middle

What is the probability that a tomato plant produced by this cross will have regular leaves?

1,595

3

The image shows a 3x3 grid with the letters "L" and "I" in different combinations. The top row has "L" in all three squares, the middle row has "LL" in the first two squares and "I" in the third square, and the bottom row has "I" in the first two squares and "LI" in the third square. The background of the grid is white, and the letters are in black.

[ "2/4", "4/4", "1/4", "3/4", "0/4" ]

This passage describes the leaf type trait in tomato plants: Tomato leaves come in many types, including regular leaves and potato leaves. Regular leaves are small and have jagged edges. Potato leaves are large and have smooth edges. In a group of tomato plants, some individuals have regular leaves and others have potato leaves. In this group, the gene for the leaf type trait has two alleles. The allele for potato leaves (l) is recessive to the allele for regular leaves (L). This Punnett square shows a cross between two tomato plants.

closed choice

middle

What can Jim and Sasha trade to each get what they want?

1,605

3

The image shows a list of five items, each preceded by a blue bullet point. The items listed are "a hot dog," "tomatoes," "almonds," and "water." The text is presented in a simple, unadorned font on a plain white background.

[ "Jim can trade his tomatoes for Sasha's carrots.", "Sasha can trade her almonds for Jim's tomatoes.", "Sasha can trade her broccoli for Jim's oranges.", "Jim can trade his tomatoes for Sasha's broccoli." ]

Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another. Jim and Sasha open their lunch boxes in the school cafeteria. Neither Jim nor Sasha got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Jim's lunch Sasha's lunch

closed choice

middle

What is the probability that a rock pocket mouse produced by this cross will be homozygous dominant for the fur color gene?

1,606

2

The image shows a 2x2 matrix with the letters "f" and "F" in each cell. The top left cell has a lowercase "f", the top right cell has an uppercase "F", the bottom left cell has a lowercase "f" with a blue outline, and the bottom right cell has an uppercase "F" with a blue outline. The matrix is enclosed within a black border.

[ "4/4", "2/4", "0/4", "3/4", "1/4" ]

In a group of rock pocket mice, some individuals have dark fur and others have light fur. In this group, the gene for the fur color trait has two alleles. The allele for dark fur (F) is dominant over the allele for light fur (f). This Punnett square shows a cross between two rock pocket mice.

closed choice

difficult

Which term matches the picture?

1,616

0

The image shows a close-up of a brown dog with its mouth open, tongue sticking out. The dog's eyes are half-closed and it appears to be panting, possibly from exertion or heat. The background is blurred, but it looks like the dog might be outdoors, as there are hints of greenery that could be grass or plants. The dog's teeth are visible in its mouth, and there is some saliva hanging from its chin, indicating that the dog has been panting for a while. The overall impression is that the dog is tired but content, possibly after playing or exercising.

[ "endotherm", "ectotherm" ]

Read the text. Most reptiles and amphibians are ectotherms. This means that when the surrounding environment is cold, their body temperatures drop, and when the surrounding environment is warm, their body temperatures rise. You may see a lizard trying to warm itself up by lying out in the sun; this is because it cannot warm itself up on its own. In contrast to ectotherms, endotherms, like humans and other mammals, can regulate their temperatures internally. Sweating, shivering, or panting are some ways that endotherms can maintain their temperatures in hot or cold environments.

closed choice

middle

Does this passage describe the weather or the climate?

1,636

0

The image shows a wooden bench with metal armrests and legs, situated on a grassy area. The bench is facing towards a city skyline in the background, which includes tall buildings and a distinctive tower that resembles the Space Needle. The sky above the city is partly cloudy, with patches of blue sky visible. There is also a metal railing in front of the bench, possibly indicating a boundary or a viewpoint area. The overall setting suggests a peaceful park or garden within or near an urban environment.

[ "climate", "weather" ]

Figure: Seattle. Rising air in a low pressure system can cause clouds to build up in the sky. Low pressure systems are common in Seattle during the months of December, January, and February. Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place.

closed choice

middle

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,644

0

The image shows two circular diagrams with three concentric circles each, representing a pie chart-like illustration. The outermost circle is labeled "S," the middle circle is labeled "N," and the innermost circle is also labeled "S." The colors of the circles are not specified in the image. The diagrams are presented side by side, with the left diagram having a vertical line extending downwards from the bottom edge of the circle, and the right diagram having no such line. The overall style of the image is simple and graphic, with clean lines and minimal detail.

[ "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is the same in both pairs." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

closed choice

middle

Complete the text to describe the diagram. Solute particles moved in both directions across the permeable membrane. But more solute particles moved across the membrane (). When there was an equal concentration on both sides, the particles reached equilibrium.

1,649

0

The image shows a series of three blue rectangular panels, each containing green dots. The top panel has the fewest number of dots, with only two dots placed near the center. The middle panel has more dots than the top one, with four dots arranged in a square pattern. The bottom panel has the most dots, with six dots placed in a hexagonal pattern. There is an arrow pointing downwards between the middle and bottom panels, indicating a transition or progression from one panel to the next.

[ "to the left than to the right", "to the right than to the left" ]

The diagram below shows a solution with one solute. Each solute particle is represented by a green ball. The solution fills a closed container that is divided in half by a membrane. The membrane, represented by a dotted line, is permeable to the solute particles. The diagram shows how the solution can change over time during the process of diffusion.

closed choice

middle

Which country is highlighted?

1,652

3

The image is a map showing the location of a disputed island in the ocean. The island is represented by a green rectangle and is located near the coast of Australia, which is depicted in green on the left side of the map. The ocean surrounding the island is shown in blue, and there are several smaller islands scattered throughout the area. The label "Disputed Island" is placed next to the green rectangle, indicating that the island is the subject of a territorial dispute.

[ "Vanuatu", "Solomon Islands", "Samoa", "the Marshall Islands" ]

closed choice

middle

Which continent is highlighted?

1,654

0

The image is a map of the world, with the continents depicted in green and the oceans in blue. The map is centered on the Atlantic Ocean, with North America to the left and Europe and Africa to the right. South America is visible at the bottom left corner of the map, while Asia and Australia are not fully shown. The map does not include any labels or names of countries, making it difficult to identify specific locations. The overall design is simple and clear, with no additional graphics or symbols.

[ "Australia", "Europe", "Asia", "North America" ]

closed choice

middle

Which solution has a higher concentration of pink particles?

1,665

0

The image shows two volumetric flasks, each containing a solution with pink spherical particles. The flask on the left is labeled "Solution A" and has a volume of 35 mL. The flask on the right is labeled "Solvent volume: 35 mL" and also contains a solution with a volume of 35 mL. Both flasks have a similar appearance and contain the same number of pink particles.

[ "Solution A", "neither; their concentrations are the same", "Solution B" ]

The diagram below is a model of two solutions. Each pink ball represents one particle of solute.

closed choice

difficult

Think about the magnetic force between the magnets in each pair. Which of the following statements is true?

1,674

1

The image shows three green square buttons with the letter "S" in white text on each button. The buttons are arranged in a horizontal row, with equal spacing between them. The background of the image is white.

[ "The magnetic force is stronger in Pair 1.", "The strength of the magnetic force is the same in both pairs.", "The magnetic force is stronger in Pair 2." ]

The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.

closed choice

middle

During this time, thermal energy was transferred from () to ().

1,681

0

The image shows a pink background with white text. The text is divided into two sections, each containing the number "22" in bold, black font. The top section has the word "Initial" above the number "22," while the bottom section has the word "Final" above the number "22." The overall layout of the image is simple and straightforward, with a clear emphasis on the numbers "22" as the main focus.

[ "the surroundings . . . each salmon", "each salmon . . . the surroundings" ]

Brian lit the charcoal in his grill to cook two identical salmon. He put one fish on the left half of the grill and one fish on the right half of the grill. This table shows how the temperature of each salmon changed over 6minutes.

closed choice

middle

What is the probability that a pea plant produced by this cross will be homozygous recessive for the stem height gene?

1,689

3

The image shows a 3x3 grid with the letters "H" and "h" in different combinations. The top row has "H" in all three squares, the middle row has "H" in the first square, "h" in the second square, and "H" in the third square, and the bottom row has "h" in all three squares. The grid is enclosed in a white border.

[ "3/4", "1/4", "0/4", "2/4", "4/4" ]

In a group of pea plants, some individuals have a tall stem and others have a short stem. In this group, the gene for the stem height trait has two alleles. The allele for a tall stem (H) is dominant over the allele for a short stem (h). This Punnett square shows a cross between two pea plants.

closed choice

middle

Which better describes the Białowieża Forest ecosystem?

1,710

1

The image shows a lush green forest with tall trees and thick underbrush. The trees have bright green leaves, indicating that it is likely spring or summer. The sunlight filters through the canopy, creating patches of light on the forest floor. The ground is covered in a dense layer of ferns and other green plants, giving the impression of a healthy and thriving ecosystem. The forest appears to be undisturbed and peaceful, with no signs of human activity or wildlife.

[ "It has soil that is poor in nutrients. It also has only a few types of trees.", "It has soil that is rich in nutrients. It also has only a few types of trees." ]

Figure: Białowieża Forest. The Białowieża Forest is a temperate deciduous forest ecosystem in Poland and Belarus.

closed choice

middle

What is the name of the colony shown?

1,717

3

The image is a map of the United States, with the states colored in green and the oceans in blue. The map shows the eastern half of the country, with the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, and Florida visible. The map does not show any labels or names of the states, but their shapes and borders are clearly defined. The overall color scheme is simple, with the green representing land and the blue representing water.

[ "Mississippi", "New York", "New Jersey", "Delaware" ]

closed choice

middle

Is the following statement about our solar system true or false? Jupiter's volume is more than ten times as large as Saturn's volume.

1,724

0

The image is a table that lists the volume of each planet in our solar system, measured in kilometers cubed (km³). The table also includes information about the primary composition of each planet. The planets listed are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The primary compositions listed for each planet are rock, gas, and ice. The table is organized with the planets listed in order of their distance from the sun, with Mercury being the closest and Neptune being the farthest.

[ "false", "true" ]

Use the data to answer the question below.

true-or false

middle

What is the name of the colony shown?

1,728

0

The image is a map of the eastern United States, with the states highlighted in green. The map shows the states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, Pennsylvania, New Jersey, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, and parts of Alabama, Mississippi, and Tennessee. The map also shows the Atlantic Ocean to the east and parts of Canada to the north. The map has a simple design with no labels or additional information provided.

[ "Rhode Island", "Kentucky", "Connecticut", "Mississippi" ]

closed choice

middle

Which property matches this object?

1,754

1

The image shows a glass of red grape juice with a blue rim, filled with dark red liquid. There are several whole red grapes and green leaves arranged around the base of the glass. The text "grape juice" is written in black letters at the bottom of the image.

[ "salty", "sweet" ]

Select the better answer.

closed choice

middle

Which solution has a higher concentration of pink particles?

1,762

0

The image shows two flasks labeled as "Solution A" and "Solution B". Both flasks contain a clear solvent and purple solute particles. The label on the left flask indicates that the volume of the solvent is 30 mL, while the label on the right flask also indicates that the volume of the solvent is 30 mL. The image appears to be a representation of two solutions with the same volume of solvent, but it is not clear what the difference is between Solution A and Solution B.

[ "Solution B", "Solution A", "neither; their concentrations are the same" ]

The diagram below is a model of two solutions. Each pink ball represents one particle of solute.

closed choice

middle

What can Tony and Celine trade to each get what they want?

1,775

0

The image shows a list of items with blue bullet points next to each one. The items listed are "a hot dog," "tomatoes," "almonds," and "water." The background is white, and there is a green border on the left side of the image.

[ "Tony can trade his tomatoes for Celine's broccoli.", "Celine can trade her almonds for Tony's tomatoes.", "Tony can trade his tomatoes for Celine's carrots.", "Celine can trade her broccoli for Tony's oranges." ]

Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another. Tony and Celine open their lunch boxes in the school cafeteria. Neither Tony nor Celine got everything that they wanted. The table below shows which items they each wanted: Look at the images of their lunches. Then answer the question below. Tony's lunch Celine's lunch

closed choice

middle

Which ocean is highlighted?

1,802

0

The image is a simplified world map with the continents represented in green and the oceans in blue. The map is centered on the Atlantic Ocean, with Africa to the left and South America to the right. The map does not show any country borders or labels, making it difficult to identify specific locations. The map appears to be a basic representation of the world's geography.

[ "the Indian Ocean", "the Atlantic Ocean", "the Arctic Ocean", "the Southern Ocean" ]

closed choice

middle

Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?

1,809

1

The image shows two jars labeled "Sample A" and "Sample B". Both jars contain blue particles with white lines around them, indicating their motion. The label on Sample A indicates that the mass of each particle is 46 u (unified atomic mass units) and the average particle speed is 610 m/s. The label on Sample B indicates that the mass of each particle is 46 u as well, but the average particle speed is not specified.

[ "neither; the samples have the same temperature", "sample A", "sample B" ]

The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.

closed choice

middle

Which property do these two objects have in common?

1,813

1

The image shows two separate pictures of a honey container and an ice cream cone. The honey container is on the left side and it has a yellow color with a brown lid and a spout for pouring the honey. The ice cream cone is on the right side and it has a pink color with a chocolate topping and a strawberry on top. Both images have labels underneath them, with "honey" written under the honey container and "ice cream" written under the ice cream cone.

[ "bouncy", "sticky" ]

Select the better answer.

closed choice