Split (3)

train · 12.4k rows

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train/3300	Is the following statement about our solar system true or false? The smallest planet is made mainly of rock.	[ "false", "true" ]	1	Use the data to answer the question below.	true-or false	grade6	natural science	earth-science	Astronomy	Analyze data to compare properties of planets	A planet's volume tells you the size of the planet. The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice.	The table tells you that the smallest planet is Mercury and that Mercury is made mainly of rock. So, the smallest planet is made mainly of rock.
train/3301	What is the capital of Idaho?	[ "Missoula", "Santa Fe", "Olympia", "Boise" ]	3		closed choice	grade4	social science	geography	State capitals	Identify state capitals of the West		Boise is the capital of Idaho.
train/3302	Based on the table, how is siltstone formed?	[ "by the pressing of layers of sediment together", "by the cooling and hardening of melted rock" ]	0	This table compares different types of rock.	closed choice	grade6	language science	writing-strategies	Visual elements	Read graphic organizers	A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another. When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca...	In a table, each cell gives information related to its row and column. This table compares different types of rock. Look in the Examples column and find siltstone. Follow the row to the middle column to see how it is formed. The middle column tells you that siltstone is formed by the pressing of layers of sediment toge...
train/3303	Which property do these three objects have in common?	[ "scratchy", "slippery", "bouncy" ]	2	Select the best answer.	closed choice	grade4	natural science	physics	Materials	Compare properties of objects	An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects...	Look at each object. For each object, decide if it has that property. A scratchy object is rough and itchy against your skin. The rubber ball is not scratchy. A slippery object is hard to hold onto or stand on. The spring is not slippery. A bouncy object will bounce back from the floor if you drop it. All three objects...
train/3304	Will these magnets attract or repel each other?	[ "repel", "attract" ]	0	Two magnets are placed as shown.	closed choice	grade4	natural science	physics	Magnets	Identify magnets that attract or repel	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south. Here are some examples of magnets. The no...	To predict if these magnets will attract or repel, look at which poles are closest to each other. The south pole of one magnet is closest to the south pole of the other magnet. Like poles repel. So, these magnets will repel each other.
train/3305	What is the capital of Colorado?	[ "Phoenix", "Santa Fe", "Birmingham", "Denver" ]	3		closed choice	grade5	social science	geography	State capitals	Identify state capitals of the West		Denver is the capital of Colorado.
train/3306	What is the direction of this push?	[ "away from the boy's hands", "toward the boy's hands" ]	0	A boy pushes his toy cars with his hands, and they roll forward.	closed choice	grade2	natural science	physics	Force and motion	Identify pushes and pulls	One object can make another object move with a push or a pull. The direction of a push is away from the object that is pushing. The direction of a pull is toward the object that is pulling.	The boy pushes his toy cars away from himself, and they roll forward. The direction of the push is away from the boy's hands.
train/3307	What is the capital of Utah?	[ "Salt Lake City", "Seattle", "Boise", "Helena" ]	0		closed choice	grade3	social science	geography	State capitals	Identify the 50 state capitals		Salt Lake City is the capital of Utah.
train/3308	Which property do these three objects have in common?	[ "slippery", "sweet", "salty" ]	2	Select the best answer.	closed choice	grade3	natural science	physics	Materials	Compare properties of objects	An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. Different objects can have properties in common. You can use these properties to put objects into groups.	Look at each object. For each object, decide if it has that property. Sugar has a sweet taste. None of the objects are sweet. Potato chips have a salty taste. All three objects are salty. A slippery object is hard to hold onto or stand on. The potato chips and the pretzel are not slippery. The property that all three o...
train/3309	Select the bird below.	[ "mandarinfish", "black howler", "goldfish", "bald eagle" ]	3	Birds have feathers, two wings, and a beak. Birds are warm-blooded. Warm-blooded animals can control their body temperature. A robin is an example of a bird.	closed choice	grade4	natural science	biology	Classification	Identify mammals, birds, fish, reptiles, and amphibians	Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification. Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals.	A black howler is a mammal. It has hair and feeds its young milk. Howler monkeys have loud calls, or howls. Their calls can be heard over three miles away! A mandarinfish is a fish. It lives underwater. It has fins, not limbs. Mandarinfish often live near coral reefs. They eat small worms, snails, and fish eggs. A bald...
train/3310	Which of these continents does the prime meridian intersect?	[ "Asia", "Europe", "South America" ]	1		closed choice	grade4	social science	geography	Maps	Use lines of latitude and longitude	Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps. Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit...	The prime meridian is the line at 0° longitude. It intersects Europe. It does not intersect South America or Asia.
train/3311	What is the capital of Texas?	[ "Austin", "Montpelier", "Baton Rouge", "Boston" ]	0		closed choice	grade4	social science	geography	State capitals	Identify state capitals of the Southeast		Austin is the capital of Texas.
train/3312	Which continent is highlighted?	[ "Asia", "Antarctica", "Australia" ]	1		closed choice	grade2	social science	geography	Geography	Identify oceans and continents	A continent is one of the seven largest areas of land on earth.	This continent is Antarctica.
train/3313	Which country is highlighted?	[ "Saint Vincent and the Grenadines", "Barbados", "Saint Lucia", "Cuba" ]	1		closed choice	grade6	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Barbados.
train/3314	Identify the question that Candice's experiment can best answer.	[ "Do radish plants grown under bright light have more leaves than radish plants grown under dim light?", "Do radishes grown under bright light get bigger than radishes grown under dim light?" ]	1	The passage below describes an experiment. Read the passage and then follow the instructions below. Candice planted 20 radish plants in a greenhouse, putting each plant in its own pot. She placed ten of the pots under bright light and the other ten pots under dim light. Candice watered all the plants twice a day. Afte...	closed choice	grade7	natural science	science-and-engineering-practices	Designing experiments	Identify the experimental question	Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment. Imagine an experiment with two groups of daffodil plants. One group of plants was gr...
train/3315	Which of the following could Garrett's test show?	[ "which side of the roof got more sun over one day", "the amount of sunlight the roof would get throughout the year", "how many solar panels could fit on each side of the roof" ]	0	People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques...	closed choice	grade8	natural science	science-and-engineering-practices	Engineering practices	Evaluate tests of engineering-design solutions	People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured. Imagine an engineer needs to design a...
train/3316	Will these magnets attract or repel each other?	[ "repel", "attract" ]	0	Two magnets are placed as shown. Hint: Magnets that attract pull together. Magnets that repel push apart.	closed choice	grade3	natural science	physics	Magnets	Identify magnets that attract or repel		Will these magnets attract or repel? To find out, look at which poles are closest to each other. The south pole of one magnet is closest to the south pole of the other magnet. Poles that are the same repel. So, these magnets will repel each other.
train/3317	Select the amphibian below.	[ "goldfish", "golden frog" ]	1	Amphibians have moist skin and begin their lives in water. A cane toad is an example of an amphibian.	closed choice	grade2	natural science	biology	Classification	Identify mammals, birds, fish, reptiles, and amphibians	Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common. Scientists sort animals into groups based on traits they have in common. This process is called classification.	A goldfish is a fish. It lives underwater. It has fins, not limbs. A golden frog is an amphibian. It has moist skin and begins its life in water.
train/3318	Which property do these three objects have in common?	[ "sour", "fragile", "scratchy" ]	1	Select the best answer.	closed choice	grade3	natural science	physics	Materials	Compare properties of objects	An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. Different objects can have properties in common. You can use these properties to put objects into groups.	Look at each object. For each object, decide if it has that property. A fragile object will break into pieces if you drop it. All three objects are fragile. A scratchy object is rough and itchy against your skin. None of the objects are scratchy. A lemon has a sour taste. None of the objects are sour. The property that...
train/3319	What is the expected ratio of offspring with red fruit to offspring with yellow fruit? Choose the most likely ratio.	[ "1:3", "3:1", "4:0", "2:2", "0:4" ]	2	In a group of tomato plants, some individuals have red fruit and others have yellow fruit. In this group, the gene for the fruit color trait has two alleles. The allele for yellow fruit (f) is recessive to the allele for red fruit (F). This Punnett square shows a cross between two tomato plants.	closed choice	grade8	natural science	biology	Genes to traits	Use Punnett squares to calculate ratios of offspring types	Offspring phenotypes: dominant or recessive? How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a...	To determine how many boxes in the Punnett square represent offspring with red fruit or yellow fruit, consider whether each phenotype is the dominant or recessive allele's version of the fruit color trait. The question tells you that the f allele, which is for yellow fruit, is recessive to the F allele, which is for re...
train/3320	Which of these states is farthest east?	[ "Iowa", "North Carolina", "Indiana", "Wyoming" ]	1		closed choice	grade3	social science	geography	Geography	Read a map: cardinal directions	Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west. A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction. The north arrow points to the North Pole. On most maps, north...	To find the answer, look at the compass rose. Look at which way the east arrow is pointing. North Carolina is farthest east.
train/3321	What is the capital of Oregon?	[ "Boise", "Portland", "Nampa", "Salem" ]	3		closed choice	grade3	social science	geography	State capitals	Identify the 50 state capitals		Salem is the capital of Oregon.
train/3322	Which property matches this object?	[ "slippery", "opaque" ]	1	Select the better answer.	closed choice	grade3	natural science	physics	Materials	Identify properties of an object	An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.	Look at the object. Think about each property. An opaque object does not let light through. The piece of rope is opaque. A slippery object is hard to hold onto or stand on. The piece of rope is not slippery.
train/3323	Which property do these four objects have in common?	[ "salty", "translucent", "fuzzy" ]	2	Select the best answer.	closed choice	grade5	natural science	physics	Materials	Compare properties of objects	An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects...	Look at each object. For each object, decide if it has that property. A fuzzy object is covered in soft hair. All four objects are fuzzy. Potato chips have a salty taste. The kiwi is not salty. A translucent object lets light through. But you cannot see clearly through a translucent object. The tennis ball is not trans...
train/3324	What is the name of the colony shown?	[ "New Hampshire", "Massachusetts", "Connecticut", "Rhode Island" ]	1		closed choice	grade5	social science	us-history	English colonies in North America	Identify the Thirteen Colonies		The colony is Massachusetts. The Massachusetts Colony included land that would later become the state of Maine. Maine was never its own colony.
train/3325	Select the organism in the same genus as the peregrine falcon.	[ "Phoebastria nigripes", "Falco tinnunculus", "Ardea alba" ]	1	This organism is a peregrine falcon. Its scientific name is Falco peregrinus.	closed choice	grade4	natural science	biology	Scientific names	Use scientific names to classify organisms	Scientists use scientific names to identify organisms. Scientific names are made of two words. The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits. A genus is made up of one or more species. A species is a group of very similar organisms...	A peregrine falcon's scientific name is Falco peregrinus. The first word of its scientific name is Falco. Falco tinnunculus is in the genus Falco. The first word of its scientific name is Falco. So, Falco tinnunculus and Falco peregrinus are in the same genus. Phoebastria nigripes is in the genus Phoebastria. The first...
train/3326	What is the name of the colony shown?	[ "South Carolina", "Mississippi", "Connecticut", "Virginia" ]	2		closed choice	grade5	social science	us-history	English colonies in North America	Identify the Thirteen Colonies		The colony is Connecticut.
train/3327	Which is the main persuasive appeal used in this ad?	[ "ethos (character)", "logos (reason)", "pathos (emotion)" ]	0		closed choice	grade7	language science	writing-strategies	Persuasive strategies	Identify appeals to ethos, pathos, and logos in advertisements	The purpose of an advertisement is to persuade people to do something. To accomplish this purpose, advertisements use three types of persuasive strategies, or appeals: Appeals to ethos, or character, show that the writer or speaker is trustworthy or is an authority on a subject. An ad that appeals to ethos might do one...	The ad appeals to ethos, or character. It includes a recommendation from a person who is famous or admired (a professional athlete).
train/3328	Based on the table, which story is set in the eighteenth century?	[ "The Time Machine", "Rip Van Winkle" ]	1	This table compares three stories about time travel.	closed choice	grade6	language science	writing-strategies	Visual elements	Read graphic organizers	A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another. When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca...	In a table, each cell gives information related to its row and column. This table compares three stories about time travel. Look in the Setting column to find the story that takes place in New York in the late eighteenth century. Follow that row left to see what's in the Story column. Rip Van Winkle has a plot that tak...
train/3329	Is a piece of paper a solid or a liquid?	[ "a solid", "a liquid" ]	0		closed choice	grade2	natural science	physics	States of matter	Classify matter as solid or liquid	Solid and liquid are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms. When matter is a solid, it has a shape of its own. Some solids can be bent or broken easily. Others are hard to bend or break. A glass cup is a solid. A sock is also a solid. When matter is a li...	A piece of paper is a solid. You can fold a piece of paper. But it will still have a size and shape of its own.
train/3330	What is the capital of Florida?	[ "Tallahassee", "Honolulu", "Frankfort", "Tampa" ]	0		closed choice	grade3	social science	geography	State capitals	Identify state capitals of the Southeast		Tallahassee is the capital of Florida.
train/3331	What is the capital of Indiana?	[ "Des Moines", "Bismarck", "Indianapolis", "Fort Wayne" ]	2		closed choice	grade4	social science	geography	State capitals	Identify state capitals of the Midwest		Indianapolis is the capital of Indiana.
train/3332	Which country is highlighted?	[ "Palau", "Vanuatu", "Solomon Islands", "the Federated States of Micronesia" ]	0		closed choice	grade7	social science	geography	Oceania: geography	Identify and select countries of Oceania		This country is Palau.
train/3333	What is the capital of Minnesota?	[ "Pierre", "Minneapolis", "Wichita", "Saint Paul" ]	3		closed choice	grade5	social science	geography	State capitals	Identify state capitals of the Midwest		Saint Paul is the capital of Minnesota.
train/3334	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	[ "The magnetic force is weaker in Pair 1.", "The strength of the magnetic force is the same in both pairs.", "The magnetic force is weaker in Pair 2." ]	0	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	grade3	natural science	physics	Magnets	Compare strengths of magnetic forces	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other. You c...	Distance affects the strength of the magnetic force. When magnets are farther apart, the magnetic force between them is weaker. The magnets in Pair 1 are farther apart than the magnets in Pair 2. So, the magnetic force is weaker in Pair 1 than in Pair 2.
train/3335	During this time, thermal energy was transferred from () to ().	[ "the surroundings . . . each refrigerator", "each refrigerator . . . the surroundings" ]	0	Two identical refrigerators in a restaurant kitchen lost power. The door of one fridge was slightly open, and the door of the other fridge was closed. This table shows how the temperature of each refrigerator changed over 10minutes.	closed choice	grade7	natural science	physics	Thermal energy	Compare thermal energy transfers	A change in an object's temperature indicates a change in the object's thermal energy: An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings. A decrease in temperature shows that the object's thermal energy decreased. So, th...	The temperature of each refrigerator increased, which means that the thermal energy of each refrigerator increased. So, thermal energy was transferred from the surroundings to each refrigerator.
train/3336	Which of the following organisms is the tertiary consumer in this food web?	[ "bilberry", "lichen", "Rough-legged hawk" ]	2	Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada. 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	grade6	natural science	biology	Ecological interactions	Interpret food webs I	A food web is a model. A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho...	Tertiary consumers eat secondary consumers. So, in a food web, tertiary consumers have arrows pointing to them from secondary consumers. Secondary consumers have arrows pointing to them from primary consumers. And primary consumers have arrows pointing to them from producers. The snowy owl has an arrow pointing to it f...
train/3337	Which of the following could Reagan's test show?	[ "whether the new turbine could produce 10% more electricity", "if the new turbine could turn easily", "how much the new turbine would weigh" ]	0	People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques...	closed choice	grade8	natural science	science-and-engineering-practices	Engineering practices	Evaluate tests of engineering-design solutions	People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured. Imagine an engineer needs to design a...
train/3338	What is the capital of Washington?	[ "Nampa", "Seattle", "Santa Fe", "Olympia" ]	3		closed choice	grade5	social science	geography	State capitals	Identify the 50 state capitals		Olympia is the capital of Washington.
train/3339	What is the capital of Virginia?	[ "Hartford", "Richmond", "Norfolk", "Austin" ]	1		closed choice	grade4	social science	geography	State capitals	Identify state capitals of the Southeast		Richmond is the capital of Virginia.
train/3340	What is the name of the colony shown?	[ "Massachusetts", "Pennsylvania", "Florida", "Vermont" ]	1		closed choice	grade8	social science	us-history	Colonial America	Identify the Thirteen Colonies		The colony is Pennsylvania.
train/3341	Which material is this table made of?	[ "asphalt", "metal" ]	1		closed choice	grade2	natural science	physics	Materials	Identify multiple materials in objects	A material is a type of matter. Wood, glass, metal, and plastic are common materials. Some objects are made of just one material. Most nails are made of metal. Other objects are made of more than one material. This hammer is made of metal and wood.	Look at the picture of the table. The table is made of two different materials. The top is made of glass, and the frame is made of metal.
train/3342	What is the capital of Tennessee?	[ "Nashville", "Memphis", "Richmond", "Charleston" ]	0		closed choice	grade3	social science	geography	State capitals	Identify state capitals of the Southeast		Nashville is the capital of Tennessee.
train/3343	What is the capital of Maryland?	[ "Harrisburg", "Annapolis", "Augusta", "Baltimore" ]	1		closed choice	grade3	social science	geography	State capitals	Identify state capitals of the Northeast		Annapolis is the capital of Maryland.
train/3344	Which animal is also adapted to be camouflaged among green leaves?	[ "green silver-line", "blue poison dart frog" ]	0	Leaf-mimic katydids are insects that live in places like tropical forests. This katydid is adapted to be camouflaged among green leaves. Figure: leaf-mimic katydid.	closed choice	grade3	natural science	biology	Adaptations	Animal adaptations: skins and body coverings	An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors. The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal...	Look at the picture of the leaf-mimic katydid. The leaf-mimic katydid has a green leaf-shaped body. It is adapted to be camouflaged among green leaves. The word camouflage means to blend in. Now look at each animal. Figure out which animal has a similar adaptation. The green silver-line has a green body. It is adapted ...
train/3345	Which statement describes the Taklamakan Desert ecosystem?	[ "It has year-round snow.", "It has a small amount of rain or snow.", "It has warm summers and mild winters." ]	1	Figure: Taklamakan Desert. The Taklamakan Desert is a cold desert ecosystem in northwestern China. Towns in this desert were stops along the Silk Road, a historical trade route between China and eastern Europe.	closed choice	grade8	natural science	biology	Ecosystems	Describe ecosystems	An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment. There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri...	A cold desert is a type of ecosystem. Cold deserts have the following features: a small amount of rain or snow, dry, thin soil, and long, cold winters. So, the following statement describes the Taklamakan Desert ecosystem: a small amount of rain or snow, dry, thin soil, and long, cold winters. It has a small amount of ...
train/3346	Which of the following was a dependent variable in this experiment?	[ "the number of mosquito bites", "the type of mosquito repellent used" ]	0	The passage below describes an experiment. Read the passage and think about the variables that are described. Santiago liked to hike, but he was often bothered by mosquito bites. He read that rubbing lavender flowers on your skin can repel mosquitoes. Santiago wanted to find out if lavender flowers work better as a mo...	closed choice	grade6	natural science	science-and-engineering-practices	Designing experiments	Identify independent and dependent variables	Experiments have variables, or parts that change. You can design an experiment to find out how one variable affects another variable. For example, imagine that you want to find out if fertilizer affects the number of tomatoes a tomato plant grows. To answer this question, you decide to set up two equal groups of tomato...
train/3347	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	[ "sample A", "neither; the samples have the same temperature", "sample B" ]	0	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	grade7	natural science	physics	Particle motion and energy	Identify how particle motion affects temperature and pressure	The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance. The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of...	Each particle in sample A has more mass than each particle in sample B. The particles in sample A also have a higher average speed than the particles in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B. Because the particles in sample A have the higher average ...
train/3348	Select the fish below.	[ "western gorilla", "manta ray", "woodpecker", "coral snake" ]	1	Fish live underwater. They have fins, not limbs. Fish are cold-blooded. The body temperature of cold-blooded animals depends on their environment. A hammerhead shark is an example of a fish.	closed choice	grade4	natural science	biology	Classification	Identify mammals, birds, fish, reptiles, and amphibians	Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification. Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals.	A woodpecker is a bird. It has feathers, two wings, and a beak. Woodpeckers have strong beaks. They use their beaks to drill into wood to hunt for food. A coral snake is a reptile. It has scaly, waterproof skin. Coral snakes spend most of their time underground or hiding under leaves. A western gorilla is a mammal. It ...
train/3349	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	[ "The magnetic force is weaker in Pair 1.", "The strength of the magnetic force is the same in both pairs.", "The magnetic force is weaker in Pair 2." ]	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	grade4	natural science	physics	Magnets	Compare strengths of magnetic forces	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other. You c...	Distance affects the strength of the magnetic force. When magnets are farther apart, the magnetic force between them is weaker. The magnets in Pair 2 are farther apart than the magnets in Pair 1. So, the magnetic force is weaker in Pair 2 than in Pair 1.
train/3350	Which of these cities is marked on the map?	[ "Portland", "San Jose", "Las Vegas", "Denver" ]	3		closed choice	grade5	social science	geography	Cities	Cities of the West		The city is Denver, Colorado. San Jose, Portland, and Las Vegas are marked with gray circles on the map below.
train/3351	Which month is the hottest on average in Rome?	[ "December, January, and February", "July and August", "October and November" ]	1	Use the graph to answer the question below.	closed choice	grade4	natural science	earth-science	Weather and climate	Use climate data to make predictions		To describe the average temperature trends in Rome, look at the graph. Choice "Feb" is incorrect. Choice "Jul" is incorrect. Choice "Aug" is incorrect. Choice "Oct" is incorrect. Choice "Nov" is incorrect. Choice "Dec" is incorrect. Choice "Jan" is incorrect. The average temperatures in July and August are around 23°C....
train/3352	What is the name of the colony shown?	[ "Tennessee", "Delaware", "Kentucky", "Mississippi" ]	1		closed choice	grade7	social science	us-history	Colonial America	Identify the Thirteen Colonies		The colony is Delaware.
train/3353	Which material is this water pitcher made of?	[ "plastic", "leather" ]	0		closed choice	grade2	natural science	physics	Materials	Identify materials in objects	A material is a type of matter. Wood, glass, metal, and plastic are common materials.	Look at the picture of the water pitcher. The water pitcher is made of plastic. Plastic is a strong, light material that can be molded into many shapes. Some water pitchers are made of glass. But glass pitchers are much easier to break!
train/3354	Which property do these three objects have in common?	[ "flexible", "yellow", "bumpy" ]	0	Select the best answer.	closed choice	grade4	natural science	physics	Materials	Compare properties of objects	An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects...	Look at each object. For each object, decide if it has that property. Yellow is a color. This color is yellow. The rubber gloves are yellow, but the trampoline is not. A flexible object can be folded or bent without breaking easily. All three objects are flexible. A bumpy object is covered in lumps and bumps. The parac...
train/3355	Is Loxodonta africana made up of one cell?	[ "yes", "no" ]	1	This organism is Loxodonta africana. It is a member of the animal kingdom. Loxodonta africana is commonly called an African elephant. Elephants often live in matriarchal groups. This means that a mother elephant, her daughter, and her grandchildren live together.	yes or no	grade5	natural science	biology	Classification	Describe, classify, and compare kingdoms	In the past, scientists classified living organisms into two groups: plants and animals. Over the past 300 years, scientists have discovered many more types of organisms. Today, many scientists classify organisms into six broad groups, called kingdoms. Organisms in each kingdom have specific traits. The table below sho...	Loxodonta africana is an animal. Animals are made up of many cells.
train/3356	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	[ "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is smaller in Pair 2.", "The magnitude of the magnetic force is smaller in Pair 1." ]	0	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	grade6	natural science	physics	Velocity, acceleration, and forces	Compare magnitudes of magnetic forces	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces. The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,...	Both magnet sizes and distance affect the magnitude of the magnetic force. The sizes of the magnets in Pair 1 are the same as in Pair 2. The distance between the magnets is also the same. So, the magnitude of the magnetic force is the same in both pairs.
train/3357	Which material is this balloon made of?	[ "ceramic", "rubber" ]	1		closed choice	grade3	natural science	physics	Materials	Identify materials in objects	A material is a type of matter. Wood, glass, metal, and plastic are common materials.	Look at the picture of the balloon. The balloon is made of rubber. Some types of rubber come from the sap inside trees! To get the sap out, a small hole is cut into the tree. The sap slowly flows out into a bucket. The sap can be used to make many things, such as balloons and rubber gloves.
train/3358	What is the capital of Virginia?	[ "Concord", "Austin", "Richmond", "Arlington" ]	2		closed choice	grade3	social science	geography	State capitals	Identify state capitals of the Southeast		Richmond is the capital of Virginia.
train/3359	What is the name of the colony shown?	[ "Pennsylvania", "Connecticut", "New Jersey", "South Carolina" ]	1		closed choice	grade5	social science	us-history	English colonies in North America	Identify the Thirteen Colonies		The colony is Connecticut.
train/3360	Which country is highlighted?	[ "Saint Lucia", "Barbados", "Dominica", "Saint Vincent and the Grenadines" ]	0		closed choice	grade6	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Saint Lucia.
train/3361	Is the following statement about our solar system true or false? Neptune's volume is more than 100 times as large as Earth's.	[ "false", "true" ]	0	Use the data to answer the question below.	true-or false	grade8	natural science	earth-science	Astronomy	Analyze data to compare properties of planets	A planet's volume tells you the size of the planet. The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice. The volume of a planet is a very large quantity. Large quantities such as this are often written in scientific notation. For ex...	To determine if this statement is true, calculate the value of 100 times the volume of Earth. Then compare the result to the volume of Neptune. The volume of Neptune is 6.25 x 10^13 km^3, which is less than 1.08 x 10^14 km^3. So, Neptune's volume is less than 100 times as large as Earth's.
train/3362	Which of these states is farthest west?	[ "Wyoming", "Iowa", "Georgia", "Kansas" ]	0		closed choice	grade5	social science	geography	Maps	Read a map: cardinal directions	Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west. A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction. The north arrow points to the North Pole. On most maps, north...	To find the answer, look at the compass rose. Look at which way the west arrow is pointing. Wyoming is farthest west.
train/3363	Which country is highlighted?	[ "Antigua and Barbuda", "Barbados", "Saint Kitts and Nevis", "Saint Lucia" ]	0		closed choice	grade7	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Antigua and Barbuda.
train/3364	Will these magnets attract or repel each other?	[ "attract", "repel" ]	1	Two magnets are placed as shown. Hint: Magnets that attract pull together. Magnets that repel push apart.	closed choice	grade2	natural science	physics	Magnets	Identify magnets that attract or repel	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south. Here are some examples of magnets....	Will these magnets attract or repel? To find out, look at which poles are closest to each other. The south pole of one magnet is closest to the south pole of the other magnet. Poles that are the same repel. So, these magnets will repel each other.
train/3365	Identify the question that Stacy's experiment can best answer.	[ "Are eggs more likely to float in fresh water or salty water?", "Does the amount of water in a glass affect whether eggs sink or float in the water?" ]	0	The passage below describes an experiment. Read the passage and then follow the instructions below. Stacy poured four ounces of water into each of six glasses. Stacy dissolved one tablespoon of salt in each of three glasses, and did not add salt to the other three. Then, Stacy placed an egg in one glass and observed i...	closed choice	grade6	natural science	science-and-engineering-practices	Designing experiments	Identify the experimental question	Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment. Imagine an experiment with two groups of daffodil plants. One group of plants was gr...
train/3366	Which of the following could Anne and Danielle's test show?	[ "if a new batch of concrete was firm enough to use", "if the concrete from each batch took the same amount of time to dry" ]	0	People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques...	closed choice	grade6	natural science	science-and-engineering-practices	Engineering practices	Evaluate tests of engineering-design solutions	People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured. Imagine an engineer needs to design a...
train/3367	What is the capital of Indiana?	[ "Tucson", "Kansas City", "Indianapolis", "Lincoln" ]	2		closed choice	grade5	social science	geography	State capitals	Identify state capitals of the Midwest		Indianapolis is the capital of Indiana.
train/3368	Which of the following fossils is younger? Select the more likely answer.	[ "ginkgo leaf", "insect" ]	1	This diagram shows fossils in an undisturbed sedimentary rock sequence.	closed choice	grade8	natural science	earth-science	Fossils	Compare ages of fossils in a rock sequence	A fossil is the preserved evidence of an ancient organism. Some fossils are formed from body parts such as bones or shells. Other fossils, such as footprints or burrows, are formed from traces of an organism's activities. Fossils are typically found in sedimentary rocks. Sedimentary rocks usually form in layers. Over t...	Look again at the fossils in the rock sequence diagram. Compare the positions of these fossils to determine which one is younger: The insect fossil is in a shallower layer in the rock sequence than the ginkgo leaf fossil. So, the insect fossil is most likely younger than the ginkgo leaf fossil.
train/3369	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	[ "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." ]	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	grade4	natural science	physics	Magnets	Compare strengths of magnetic forces	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.	Distance affects the strength of the magnetic force. But the distance between the magnets in Pair 1 and in Pair 2 is the same. So, the strength of the magnetic force is the same in both pairs.
train/3370	Which is this organism's scientific name?	[ "Ambystoma texanum", "small-mouth salamander" ]	0	This organism is a small-mouth salamander. It is also called Ambystoma texanum.	closed choice	grade7	natural science	biology	Classification and scientific names	Identify common and scientific names	An organism's common name is the name that people normally call the organism. Common names often contain words you know. An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English. Scientific names are written in italics,...	Ambystoma texanum is written in italics. The first word is capitalized, and the second word is not. So, Ambystoma texanum is the scientific name.
train/3371	What is the capital of South Carolina?	[ "Columbia", "Charleston", "Biloxi", "Baton Rouge" ]	0		closed choice	grade4	social science	geography	State capitals	Identify state capitals of the Southeast		Columbia is the capital of South Carolina.
train/3372	Which solution has a higher concentration of blue particles?	[ "Solution A", "neither; their concentrations are the same", "Solution B" ]	1	The diagram below is a model of two solutions. Each blue ball represents one particle of solute.	closed choice	grade8	natural science	chemistry	Solutions	Compare concentrations of solutions	A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution...	In Solution A and Solution B, the blue particles represent the solute. To figure out which solution has a higher concentration of blue particles, look at both the number of blue particles and the volume of the solvent in each container. Use the concentration formula to find the number of blue particles per milliliter. ...
train/3373	Which animal is also adapted to be camouflaged among green leaves?	[ "spiny orb-weaver", "huntsman spider" ]	1	Green tree pythons live in the forests of Southeast Asia. The is adapted to be camouflaged among green leaves. Figure: green tree python.	closed choice	grade5	natural science	biology	Adaptations	Animal adaptations: skins and body coverings	An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors. The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal...	Look at the picture of the green tree python. The green tree python has green scales covering its body. It is adapted to be camouflaged among green leaves. The word camouflage means to blend in. Now look at each animal. Figure out which animal has a similar adaptation. This huntsman spider has a green body. It is adapt...
train/3374	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	[ "neither; the samples have the same temperature", "sample B", "sample A" ]	2	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	grade7	natural science	physics	Particle motion and energy	Identify how particle motion affects temperature and pressure	The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance. The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of...	The particles in both samples have the same average speed, but each particle in sample A has more mass than each particle in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B. Because the particles in sample A have the higher average kinetic energy, sample A mus...
train/3375	Which is this organism's common name?	[ "Asian tiger mosquito", "Aedes albopictus" ]	0	This organism is an Asian tiger mosquito. It is also called Aedes albopictus.	closed choice	grade7	natural science	biology	Classification and scientific names	Identify common and scientific names	An organism's common name is the name that people normally call the organism. Common names often contain words you know. An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English. Scientific names are written in italics,...	Aedes albopictus is written in italics. The first word is capitalized, and the second word is not. So, it is the scientific name. Aedes albopictus is the organism's scientific name. So, you know that Asian tiger mosquito is the common name.
train/3376	In this food chain, the bison is a consumer. Why?	[ "It makes its own food.", "It eats another organism." ]	1	This diagram shows a food chain from a grassland ecosystem in Wyoming.	closed choice	grade4	natural science	biology	Ecosystems	Identify roles in food chains	Every organism needs food to stay alive. Organisms get their food in different ways. A food chain shows how organisms in an ecosystem get their food. Producers make their own food. Many producers use carbon dioxide, water, and sunlight to make sugar. This sugar is food for the producer. Consumers eat other organisms. C...	In this food chain, the bison is a consumer because it eats another organism. The bison in this food chain eats the wild oat.
train/3377	Which animal's feet are also adapted for sticking to smooth surfaces?	[ "Mediterranean tree frog", "platypus" ]	0	Red-eyed tree frogs live in the rain forests of Central America. They spend most of their lives in trees. The feet of the tree frog are adapted to stick to the smooth surfaces of leaves. Figure: red-eyed tree frog.	closed choice	grade3	natural science	biology	Adaptations	Animal adaptations: feet and limbs	An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors. The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m...	Look at the picture of the red-eyed tree frog. The red-eyed tree frog has wide, sticky toes. Its feet are adapted for sticking to smooth surfaces. The red-eyed tree frog uses its toes to walk on the smooth surfaces of leaves without slipping. Now look at each animal. Figure out which animal has a similar adaptation. Th...
train/3378	Which type of relationship is formed when a Guinea worm lives in a person's body?	[ "mutualistic", "commensal", "parasitic" ]	2	Read the passage. Then answer the question. Guinea worms are a type of roundworm. Immature Guinea worms live in freshwater, and they are so tiny that they are visible only with a microscope. If a person drinks water that contains a worm, the worm is not digested. Instead, it can take refuge in the person's body and gr...	closed choice	grade7	natural science	biology	Ecological interactions	Classify symbiotic relationships	When two organisms of different species interact in a way that affects one or both organisms, they form a symbiotic relationship. The word symbiosis comes from a Greek word that means living together. Scientists define types of symbiotic relationships based on how each organism is affected. This table lists three commo...	When a Guinea worm lives in a person's body, the worm gets a safe place to live and grow. So, the Guinea worm benefits from its relationship with the person. The worm creates a painful wound that can become infected. So, the person is harmed by the relationship with the worm. Since the worm benefits and the person is h...
train/3379	What can Tanvi and Jeremiah trade to each get what they want?	[ "Tanvi can trade her tomatoes for Jeremiah's broccoli.", "Jeremiah can trade his broccoli for Tanvi's oranges.", "Jeremiah can trade his almonds for Tanvi's tomatoes.", "Tanvi can trade her tomatoes for Jeremiah's carrots." ]	0	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. Tanvi and Jeremiah open their lunch boxes in the school cafeteria. Neither Tanvi nor Jeremiah got everything that they wanted. Th...	closed choice	grade7	social science	economics	Basic economic principles	Trade and specialization		Look at the table and images. Tanvi wants broccoli. Jeremiah wants tomatoes. They can trade tomatoes for broccoli to both get what they want. Trading other things would not help both people get more items they want.
train/3380	Which statement describes the Cape Breton Highlands National Park ecosystem?	[ "It has mostly small plants.", "It has long, cold winters and short, cool summers.", "It has soil that is rich in nutrients." ]	1	Figure: Cape Breton Highlands National Park. Cape Breton Highlands National Park is a taiga ecosystem in eastern Canada. It is mostly covered with taiga forests that are home to moose, bears, bald eagles, and other organisms.	closed choice	grade6	natural science	biology	Ecosystems	Describe ecosystems	An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment. There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri...	A taiga is a type of ecosystem. Taigas have the following features: long, cold winters and short, cool summers, many evergreen trees, and soil that is poor in nutrients. So, the following statement describes the Cape Breton Highlands National Park ecosystem: long, cold winters and short, cool summers, many evergreen tr...
train/3381	Will these magnets attract or repel each other?	[ "attract", "repel" ]	0	Two magnets are placed as shown. Hint: Magnets that attract pull together. Magnets that repel push apart.	closed choice	grade2	natural science	physics	Magnets	Identify magnets that attract or repel	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south. Here are some examples of magnets....	Will these magnets attract or repel? To find out, look at which poles are closest to each other. The south pole of one magnet is closest to the north pole of the other magnet. Poles that are different attract. So, these magnets will attract each other.
train/3382	Which country is highlighted?	[ "Saint Kitts and Nevis", "Dominica", "Barbados", "Antigua and Barbuda" ]	3		closed choice	grade8	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Antigua and Barbuda.
train/3383	Which material is this clothespin made of?	[ "wood", "glass" ]	0		closed choice	grade2	natural science	physics	Materials	Identify multiple materials in objects	A material is a type of matter. Wood, glass, metal, and plastic are common materials. Some objects are made of just one material. Most nails are made of metal. Other objects are made of more than one material. This hammer is made of metal and wood.	Look at the picture of the clothespin. The clothespin is made of two different materials. The body is made of wood, and the spring is made of metal.
train/3384	Based on the timeline, which of the following statements is true?	[ "Hinduism began about 3,000 years before Islam.", "Hinduism began about 1,500 years before Christianity.", "Hinduism began about 500 years before Judaism." ]	1	The following timeline shows the approximate dates when several world religions began. Look at the timeline. Then answer the question below.	closed choice	grade6	social science	world-history	World religions	Origins of Hinduism
train/3385	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	[ "The strength of the magnetic force is the same in both pairs.", "The magnetic force is stronger in Pair 2.", "The magnetic force is stronger in Pair 1." ]	0	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	grade4	natural science	physics	Magnets	Compare strengths of magnetic forces	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.	Distance affects the strength of the magnetic force. But the distance between the magnets in Pair 1 and in Pair 2 is the same. So, the strength of the magnetic force is the same in both pairs.
train/3386	Which of these colonies was in New England?	[ "South Carolina", "New York", "Rhode Island" ]	2	In the following questions, you will learn about the origins of the New England Colonies. The New England Colonies made up the northern part of the Thirteen Colonies, which were ruled by Great Britain in the 1600s and 1700s. The population of New England included Native American groups, enslaved and free people of Afri...	closed choice	grade7	social science	us-history	Colonial America	New England Colonies: founding and government		Look at the legend on the map. The colonies are shaded by region, and the New England Colonies are all shaded the same color. They include these colonies: The rest of the Thirteen Colonies were part of the Middle Colonies or the Southern Colonies.
train/3387	In this food chain, the mudminnow is a tertiary consumer. Why?	[ "It makes its own food.", "It eats a secondary consumer.", "It eats a tertiary consumer." ]	1	This diagram shows a food chain from Lake Superior, a freshwater ecosystem on the border of the United States and Canada.	closed choice	grade5	natural science	biology	Ecosystems	Identify roles in food chains	Every organism needs food to stay alive. Organisms get their food in different ways. A food chain shows how organisms in an ecosystem get their food. The food chain begins with the producer. A producer can change matter that is not food into food. Many producers use carbon dioxide, water, and sunlight to make sugar. Ca...	In this food chain, the mudminnow is a tertiary consumer because it eats a secondary consumer. The secondary consumer in this food chain is the whirligig beetle.
train/3388	Look at the picture. Which word best describes how this soup feels to the touch?	[ "warm", "dusty", "dry" ]	0		closed choice	grade2	language science	writing-strategies	Descriptive details	Choose the sensory details that match the picture	When you write, you can use sensory details. These sense words help your reader understand what something looks, sounds, tastes, smells, or feels like. Sensory Category \| Description Sight \| These are words like bright, clean, and purple. A reader can imagine looking at these details. Sound \| These are words like hissi...	Look at the picture. The word warm describes how this soup feels to the touch. You can tell by looking at the steam coming off the soup. Dry and dusty can also describe how something feels to the touch. But they do not describe this soup.
train/3389	Which of these organisms contains matter that was once part of the silver maple?	[ "parasol fungus", "persimmon tree", "gray fox" ]	0	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	grade8	natural science	biology	Ecological interactions	Interpret food webs II	A food web is a model. A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho...	Use the arrows to follow how matter moves through this food web. For each answer choice, try to find a path of arrows that starts from the silver maple.There is one path matter can take from the silver maple to the bobcat: silver maple beaver bobcat. gray fox. The gray fox has two arrows pointing to it. One arrow...
train/3390	Which solution has a higher concentration of pink particles?	[ "neither; their concentrations are the same", "Solution B", "Solution A" ]	2	The diagram below is a model of two solutions. Each pink ball represents one particle of solute.	closed choice	grade7	natural science	chemistry	Solutions	Compare concentrations of solutions	A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution...	In Solution A and Solution B, the pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container. Use the concentration formula to find the number of pink particles per milliliter. ...
train/3391	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	[ "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is greater in Pair 1." ]	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	grade6	natural science	physics	Velocity, acceleration, and forces	Compare magnitudes of magnetic forces	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces. The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,...	The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force. Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ...
train/3392	Which country is highlighted?	[ "Cuba", "Jamaica", "Haiti", "Saint Kitts and Nevis" ]	1		closed choice	grade8	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Jamaica.
train/3393	What is the capital of Arizona?	[ "Tucson", "Rapid City", "Salem", "Phoenix" ]	3		closed choice	grade4	social science	geography	State capitals	Identify the 50 state capitals		Phoenix is the capital of Arizona.
train/3394	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	[ "The strength of the magnetic force is the same in both pairs.", "The magnetic force is stronger in Pair 1.", "The magnetic force is stronger in Pair 2." ]	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	grade3	natural science	physics	Magnets	Compare strengths of magnetic forces	Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other. You c...	Distance affects the strength of the magnetic force. When magnets are closer together, the magnetic force between them is stronger. The magnets in Pair 1 are closer together than the magnets in Pair 2. So, the magnetic force is stronger in Pair 1 than in Pair 2.
train/3395	Which continent is highlighted?	[ "South America", "Antarctica", "North America", "Europe" ]	1		closed choice	grade8	social science	geography	Physical Geography	Oceans and continents	A continent is one of the major land masses on the earth. Most people say there are seven continents.	This continent is Antarctica.
train/3396	Which of these states is farthest north?	[ "Virginia", "North Dakota", "Kansas", "Delaware" ]	1		closed choice	grade5	social science	geography	Maps	Read a map: cardinal directions	Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west. A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction. The north arrow points to the North Pole. On most maps, north...	To find the answer, look at the compass rose. Look at which way the north arrow is pointing. North Dakota is farthest north.
train/3397	Which statement best describes the average monthly precipitation in Atlanta?	[ "October has the highest average precipitation.", "Atlanta has a rainy season and a dry season.", "Precipitation does not change much from month to month in Atlanta." ]	2	Use the graph to answer the question below.	closed choice	grade4	natural science	earth-science	Weather and climate	Use climate data to make predictions	Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location. A...	To describe the average precipitation trends in Atlanta, look at the graph. Choice "Oct" is incorrect. Choice "October has the highest average precipitation." is incorrect. Most other months have a slightly higher average precipitation than October. Choice "Atlanta has a rainy season and a dry season." is incorrect. Th...
train/3398	Which property do these four objects have in common?	[ "sticky", "slippery", "soft" ]	2	Select the best answer.	closed choice	grade5	natural science	physics	Materials	Compare properties of objects	An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects...	Look at each object. For each object, decide if it has that property. A soft object changes shape when pressed or squeezed. All four objects are soft. A sticky object can attach or stick to other things. The melted marshmallow is sticky, but the soccer shorts, the handkerchief, and the track suit are not. A slippery ob...
train/3399	Is a stuffed tiger a solid or a liquid?	[ "a solid", "a liquid" ]	0		closed choice	grade2	natural science	physics	States of matter	Classify matter as solid or liquid	Solid and liquid are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms. When matter is a solid, it has a shape of its own. Some solids can be bent or broken easily. Others are hard to bend or break. A glass cup is a solid. A sock is also a solid. When matter is a li...	A stuffed tiger is a solid. A solid has a size and shape of its own. When you hold a stuffed tiger in your hands, the stuffed tiger still has a size and shape of its own.

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