Split (3)

train · 12.4k rows

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train/5800	Which country is highlighted?	[ "the Federated States of Micronesia", "Tuvalu", "Kiribati", "Tonga" ]	1		closed choice	grade7	social science	geography	Oceania: geography	Identify and select countries of Oceania		This country is Tuvalu.
train/5801	What is the capital of Ohio?	[ "Montgomery", "Columbus", "Cincinnati", "Cleveland" ]	1		closed choice	grade5	social science	geography	State capitals	Identify state capitals of the Midwest		Columbus is the capital of Ohio.
train/5802	Which part of the pear tree do we usually eat?	[ "the flowers", "the fruit", "the leaves" ]	1	People use pear trees for food. We usually eat the part of this plant that contains the seeds. It grows from a pollinated flower.	closed choice	grade4	natural science	biology	Plants	Classify fruits and vegetables as plant parts	The fruits and vegetables we eat are parts of plants! Plants are made up of different structures. The different structures carry out important functions. The roots take in water and nutrients from the soil. They also hold the plant in place in the soil. The stem supports the plant. It carries food, water, and nutrients...	The part of the pear tree we usually eat is the fruit. It contains the seeds.
train/5803	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/5804	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 A", "sample B" ]	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...	Each particle in sample B has more mass than each particle in sample A. The particles in sample B also have a higher average speed than the particles in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A. Because the particles in sample B have the higher average ...
train/5805	Is a piece of paper a solid, a liquid, or a gas?	[ "a gas", "a solid", "a liquid" ]	1		closed choice	grade3	natural science	physics	States of matter	Classify matter as solid, liquid, or gas	Solid, liquid, and gas 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 definite volume and a definite shape. So, a solid has a size and shape of its own. Some solids can be easily folded, bent, or broken. A piece of paper is a...	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/5806	Which of the following statements describess living in an independent city-state?	[ "All the decisions about my city are made by a faraway emperor.", "I vote for a president that rules over many different cities.", "I live by myself in the wilderness.", "My city rules itself and is not part of a larger country." ]	3	Athens was one of the most powerful independent city-states in ancient Greece. Look at the definitions below. Then answer the question.	closed choice	grade6	social science	world-history	Greece	Classical Athens: geography and society		Look at the definitions. Putting the definitions together, an independent city-state is a self-ruling city with its own government. So, a city-state rules itself and is not part of a larger country. The ancient Greeks called a city-state a polis, which was the ancient Greek word for city. Today, the root word "polis" i...
train/5807	Which of the following could Ava's test show?	[ "how much the drone weighed with the blade guards", "if adding the blade guards made the drone fly poorly", "if the blade guards would break in a crash" ]	1	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	grade7	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/5808	Which country is highlighted?	[ "the Dominican Republic", "Dominica", "Saint Kitts and Nevis", "Jamaica" ]	1		closed choice	grade7	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Dominica.
train/5809	Which ocean is highlighted?	[ "the Indian Ocean", "the Pacific Ocean", "the Atlantic Ocean", "the Arctic Ocean" ]	0		closed choice	grade6	social science	geography	Physical Geography	Oceans and continents	Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean.	This is the Indian Ocean.
train/5810	Which country is highlighted?	[ "Antigua and Barbuda", "Saint Kitts and Nevis", "Haiti", "Barbados" ]	0		closed choice	grade6	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Antigua and Barbuda.
train/5811	What is the name of the colony shown?	[ "Connecticut", "Rhode Island", "New Jersey", "Wisconsin" ]	1		closed choice	grade4	social science	us-history	English colonies in North America	Identify the Thirteen Colonies		The colony is Rhode Island.
train/5812	Which bird's beak is also adapted to crack hard seeds?	[ "Asian golden weaver", "barn swallow" ]	0	Evening grosbeaks eat small, hard seeds. The shape of the 's beak is adapted to crack open small, hard seeds. Figure: evening grosbeak.	closed choice	grade3	natural science	biology	Adaptations	Animal adaptations: beaks, mouths, and necks	An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors. The shape of a bird's beak is one example of an adaptation. Birds' beaks can be adapted in different ways. For example, a sharp hooked beak might help a bird tear through meat easily. ...	Look at the picture of the evening grosbeak. The evening grosbeak has a short, thick beak. Its beak is adapted to crack hard seeds. The evening grosbeak uses its short, thick beak to press down on a seed and crack open its hard shell. Now look at each bird. Figure out which bird has a similar adaptation. The Asian gold...
train/5813	What can Nathan and Doug trade to each get what they want?	[ "Nathan can trade his tomatoes for Doug's broccoli.", "Doug can trade his broccoli for Nathan's oranges.", "Nathan can trade his tomatoes for Doug's sandwich.", "Doug can trade his almonds for Nathan's tomatoes." ]	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. Nathan and Doug open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Nathan wanted b...	closed choice	grade6	social science	economics	Basic economic principles	Trade and specialization		Nathan wanted broccoli in his lunch and Doug was hoping for tomatoes. Look at the labeled part of the images. Nathan has tomatoes. Doug has broccoli. They can trade tomatoes for broccoli to both be happier. Trading other things would not help either person get more items they want.
train/5814	Which country is highlighted?	[ "the Federated States of Micronesia", "Papua New Guinea", "Nauru", "the Marshall Islands" ]	0		closed choice	grade6	social science	geography	Oceania: geography	Identify and select countries of Oceania		This country is the Federated States of Micronesia.
train/5815	Which continent is highlighted?	[ "Antarctica", "Australia", "South America", "Asia" ]	0		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/5816	Is calcite a mineral?	[ "no", "yes" ]	1	Calcite has the following properties: fixed crystal structure not made by organisms found in nature solid made of a pure substance called calcium carbonate	yes or no	grade6	natural science	earth-science	Rocks and minerals	Identify rocks and minerals	Properties are used to identify different substances. Minerals have the following properties: It is a solid. It is formed in nature. It is not made by organisms. It is a pure substance. It has a fixed crystal structure. If a substance has all five of these properties, then it is a mineral. Look closely at the last thre...	Calcite has all the properties of a mineral. So, calcite is a mineral.
train/5817	Which of these states is farthest west?	[ "North Dakota", "Kentucky", "Massachusetts", "Delaware" ]	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. North Dakota is farthest west.
train/5818	Which country is highlighted?	[ "Saint Vincent and the Grenadines", "Trinidad and Tobago", "Grenada", "Barbados" ]	2		closed choice	grade7	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Grenada.
train/5819	Which country is highlighted?	[ "Antigua and Barbuda", "Barbados", "Jamaica", "Haiti" ]	0		closed choice	grade6	social science	geography	The Americas: geography	Identify and select countries of the Caribbean		This country is Antigua and Barbuda.
train/5820	Which state is highlighted?	[ "Alabama", "Georgia", "West Virginia", "South Carolina" ]	2		closed choice	grade5	social science	geography	States	Identify states of the Southeast		This state is West Virginia.
train/5821	Which country is highlighted?	[ "the Marshall Islands", "Vanuatu", "Nauru", "Kiribati" ]	2		closed choice	grade7	social science	geography	Oceania: geography	Identify and select countries of Oceania		This country is Nauru.
train/5822	Select the organism in the same species as the plains zebra.	[ "Equus quagga", "Camelus bactrianus", "Cervus canadensis" ]	0	This organism is a plains zebra. Its scientific name is Equus quagga.	closed choice	grade8	natural science	biology	Classification and 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 plains zebra's scientific name is Equus quagga. Equus quagga has the same scientific name as a plains zebra. So, these organisms are in the same species. Camelus bactrianus does not have the same scientific name as a plains zebra. So, Equus quagga and Camelus bactrianus are not in the same species. Cervus canadensis ...
train/5823	Will these magnets attract or repel each other?	[ "attract", "repel" ]	1	Two magnets are placed as shown.	closed choice	grade5	natural science	physics	Magnets	Identify magnets that attract or repel	Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces. Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (...	To predict if these magnets will attract or repel, look at which poles are closest to each other. The north pole of one magnet is closest to the north pole of the other magnet. Like poles repel. So, these magnets will repel each other.
train/5824	Which statement is true about the average monthly temperature in Lagos?	[ "September, October, and November are much warmer than the other months of the year.", "December, January, and February are the coldest months of the year.", "The average monthly temperature does not change much throughout the year." ]	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. Temperature is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average temperature for each month. The average temperature can be used to describe the climate of a location. A line graph can be used t...	To describe the average temperature trends in Lagos, look at the graph. Choice "Feb" is incorrect. Choice "Sep" is incorrect. Choice "Oct" is incorrect. Choice "Nov" is incorrect. Choice "Dec" is incorrect. Choice "Jan" is incorrect. The average monthly temperatures stay between 25°C and 30°C. No months are much colder...
train/5825	Will these magnets attract or repel each other?	[ "attract", "repel" ]	1	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. Both poles of each magnet line up with both poles of the other magnet. The north pole of each magnet is closest to the north pole of the other magnet. Like poles repel. So, these magnets will repel each other.
train/5826	What is the capital of Arkansas?	[ "Fayetteville", "Indianapolis", "Tampa", "Little Rock" ]	3		closed choice	grade3	social science	geography	State capitals	Identify state capitals of the Southeast		Little Rock is the capital of Arkansas.
train/5827	What can Jasmine and Daniel trade to each get what they want?	[ "Jasmine can trade her tomatoes for Daniel's sandwich.", "Jasmine can trade her tomatoes for Daniel's broccoli.", "Daniel can trade his broccoli for Jasmine's oranges.", "Daniel can trade his almonds for Jasmine's tomatoes." ]	1	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. Jasmine and Daniel open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Jasmine want...	closed choice	grade6	social science	economics	Basic economic principles	Trade and specialization		Jasmine wanted broccoli in her lunch and Daniel was hoping for tomatoes. Look at the labeled part of the images. Jasmine has tomatoes. Daniel has broccoli. They can trade tomatoes for broccoli to both be happier. Trading other things would not help either person get more items they want.
train/5828	Select the organism in the same species as the bald eagle.	[ "Haliaeetus leucocephalus", "Haliaeetus pelagicus", "Lissotriton vulgaris" ]	0	This organism is a bald eagle. Its scientific name is Haliaeetus leucocephalus.	closed choice	grade7	natural science	biology	Classification and 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 bald eagle's scientific name is Haliaeetus leucocephalus. Haliaeetus leucocephalus has the same scientific name as a bald eagle. So, these organisms are in the same species. Lissotriton vulgaris does not have the same scientific name as a bald eagle. So, Haliaeetus leucocephalus and Lissotriton vulgaris are not in th...
train/5829	Will these magnets attract or repel each other?	[ "attract", "repel" ]	1	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 north pole of one magnet is closest to the north pole of the other magnet. Like poles repel. So, these magnets will repel each other.
train/5830	Select the organism in the same species as the moon jellyfish.	[ "Aequorea victoria", "Cyanea capillata", "Aurelia aurita" ]	2	This organism is a moon jellyfish. Its scientific name is Aurelia aurita.	closed choice	grade7	natural science	biology	Classification and 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 moon jellyfish's scientific name is Aurelia aurita. Aequorea victoria does not have the same scientific name as a moon jellyfish. So, Aurelia aurita and Aequorea victoria are not in the same species. Cyanea capillata does not have the same scientific name as a moon jellyfish. So, Aurelia aurita and Cyanea capillata a...
train/5831	What is the name of the colony shown?	[ "North Carolina", "Georgia", "Virginia", "South Carolina" ]	3		closed choice	grade5	social science	us-history	English colonies in North America	Identify the Thirteen Colonies		The colony is South Carolina.
train/5832	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.	[ "true", "false" ]	1	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 ten times the volume of Saturn. Then compare the result to the volume of Jupiter. The volume of Jupiter is 1.43 x 10^15 km^3, which is less than 8.27 x 10^15 km^3. So, Jupiter's volume is less than ten times as large as Saturn's volume.
train/5833	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 1.", "The magnitude of the magnetic force is smaller 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, but some of them are different sizes.	closed choice	grade8	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,...	Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The smaller the magnets, the smaller the magnitude of the magnetic force between them. Magnet A is the same size in both pairs. But Magnet B is smaller in Pair 2 than in Pair 1. So, the magnit...
train/5834	Does this passage describe the weather or the climate?	[ "weather", "climate" ]	1	Figure: Yemen. Yemen, a country in the Middle East, is located in the desert. So, the air is often dry. 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	grade6	natural science	earth-science	Weather and climate	Weather and climate around the world	The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere. Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day. Climate is the pattern of ...	Read the passage carefully. Yemen, a country in the Middle East, is located in the desert. So, the air is often dry. The underlined part of the passage tells you about the usual pattern of humidity in Yemen. This passage does not describe what the weather is like on a particular day. So, this passage describes the clim...
train/5835	What is the capital of West Virginia?	[ "Huntington", "Charleston", "Atlanta", "Seattle" ]	1		closed choice	grade4	social science	geography	State capitals	Identify state capitals of the Southeast		Charleston is the capital of West Virginia.
train/5836	What is the name of the colony shown?	[ "Delaware", "New Hampshire", "South Carolina", "Rhode Island" ]	2		closed choice	grade8	social science	us-history	Colonial America	Identify the Thirteen Colonies		The colony is South Carolina.
train/5837	Which property do these three objects have in common?	[ "fragile", "stretchy", "yellow" ]	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. Yellow is a color. This color is yellow. None of the objects are yellow. A stretchy object gets longer when you pull on it. All three objects are stretchy. A fragile object will break into pieces if you drop it. The wool hat and the balloon are not f...
train/5838	Based on the information shown in the maps above, what was true about the New England Colonies compared to the other colonies?	[ "It was easier to grow crops in New England than in the Southern or Middle Colonies.", "It was harder to grow crops in New England than in the Southern or Middle Colonies.", "New England was the second-easiest place to grow crops, after the Southern Colonies." ]	1	The two maps below give information about the colonial regions of North America. The first map shows how good the soil was for growing crops. The second map shows how many months each year the weather was good enough to grow crops. Use this information to answer the question below.	closed choice	grade5	social science	us-history	English colonies in North America	New England colonies: economy and conflict		Look at what the two maps show about New England. In the first map, most of New England is marked as having the least fertile soil. Fertile soil is good for growing crops. So, least fertile means that the soil in New England was the worst for growing crops, compared to the soil in the other colonies. The second map sho...
train/5839	Which of the following could Annie and Nora's test show?	[ "if the concrete from each batch took the same amount of time to dry", "if a new batch of concrete was firm enough to use" ]	1	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/5840	Which property do these three objects have in common?	[ "scratchy", "slippery", "fuzzy" ]	1	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 fuzzy object is covered in soft hair. None of the objects are fuzzy. A scratchy object is rough and itchy against your skin. The butter and the wet paint are not scratchy. A slippery object is hard to hold onto or stand on. All three objects are sl...
train/5841	What is the name of the colony shown?	[ "North Carolina", "Georgia", "Virginia", "South Carolina" ]	0		closed choice	grade5	social science	us-history	English colonies in North America	Identify the Thirteen Colonies		The colony is North Carolina.
train/5842	Which property do these three objects have in common?	[ "fuzzy", "bouncy", "fragile" ]	0	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. None of the objects are fragile. A bouncy object will bounce back from the floor if you drop it. The boots and the yarn pom pom are not bouncy. A fuzzy object is covered in soft hair. All three ...
train/5843	Select the organism in the same genus as the Chinese alligator.	[ "Hyla cinerea", "Eriocheir sinensis", "Alligator mississippiensis" ]	2	This organism is a Chinese alligator. Its scientific name is Alligator sinensis.	closed choice	grade7	natural science	biology	Classification and 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 Chinese alligator's scientific name is Alligator sinensis. The first word of its scientific name is Alligator. Alligator mississippiensis is in the genus Alligator. The first word of its scientific name is Alligator. So, Alligator mississippiensis and Alligator sinensis are in the same genus. Hyla cinerea is in the g...
train/5844	Which rhetorical appeal is primarily used in this ad?	[ "logos (reason)", "pathos (emotion)", "ethos (character)" ]	1		closed choice	grade12	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 the writer or speaker as trustworthy, authoritative, or sharing important values with the audience. An ad that appe...	The ad appeals to pathos, or emotion, by associating the advertised product with positive social interactions.
train/5845	Which animal's feet are also adapted for sticking to smooth surfaces?	[ "meerkat", "Costa Rica brook frog" ]	1	Tiger-striped leaf frogs live in the rain forests of Central America and South America. They spend most of their lives in trees. The feet of the are adapted to stick to the smooth surfaces of leaves. Figure: tiger-striped leaf frog.	closed choice	grade4	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 tiger-striped leaf frog. The tiger-striped leaf frog has wide, sticky toes. Its feet are adapted for sticking to smooth surfaces. The tiger-striped leaf 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...
train/5846	Identify the question that Bob's experiment can best answer.	[ "Does temperature affect how much bacteria can grow in liquid?", "Do more bacteria grow in liquid with cinnamon than in liquid without cinnamon?" ]	1	The passage below describes an experiment. Read the passage and then follow the instructions below. Bob mixed bacteria into a nutrient-rich liquid where the bacteria could grow. He poured four ounces of the mixture into each of ten glass flasks. In five of the ten flasks, he also added one teaspoon of cinnamon. He all...	closed choice	grade8	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/5847	Which of these states is farthest west?	[ "Maryland", "Florida", "New Hampshire", "Minnesota" ]	3		closed choice	grade4	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. Minnesota is farthest west.
train/5848	What can Garrett and Trent trade to each get what they want?	[ "Garrett can trade his tomatoes for Trent's broccoli.", "Garrett can trade his tomatoes for Trent's carrots.", "Trent can trade his broccoli for Garrett's oranges.", "Trent can trade his almonds for Garrett's tomatoes." ]	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. Garrett and Trent open their lunch boxes in the school cafeteria. Neither Garrett nor Trent got everything that they wanted. The ...	closed choice	grade8	social science	economics	Basic economic principles	Trade and specialization		Look at the table and images. Garrett wants broccoli. Trent 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/5849	What can Nate and Lola trade to each get what they want?	[ "Nate can trade his tomatoes for Lola's sandwich.", "Nate can trade his tomatoes for Lola's broccoli.", "Lola can trade her almonds for Nate's tomatoes.", "Lola can trade her broccoli for Nate's oranges." ]	1	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. Nate and Lola open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Nate wanted brocc...	closed choice	grade6	social science	economics	Basic economic principles	Trade and specialization		Nate wanted broccoli in his lunch and Lola was hoping for tomatoes. Look at the labeled part of the images. Nate has tomatoes. Lola has broccoli. They can trade tomatoes for broccoli to both be happier. Trading other things would not help either person get more items they want.
train/5850	What is this whale's scientific name?	[ "Livyatan breviceps", "Livyatan melvillei" ]	1	This species of whale lived about 12 million years ago. It could grow to be over 50 feet long and hunted dolphins, seals, and even other smaller whales! The scientists who discovered the whale's fossil named it after Herman Melville, author of the novel Moby Dick.	closed choice	grade4	natural science	biology	Scientific names	Origins of scientific names	When a scientist identifies a new organism, he or she chooses its scientific name. Sometimes, an organism is named after the place where it was first found. Other times, an organism is named after the scientist who first identified it. Or, the scientific name might describe the organism's physical traits. Many of the w...	This organism's scientific name refers to Herman Melville. The word melvillei refers to Herman Melville. So, this whale's scientific name is Livyatan melvillei.
train/5851	Which of these states is farthest west?	[ "Vermont", "Oregon", "Maine", "Pennsylvania" ]	1		closed choice	grade2	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 west arrow is pointing. Oregon is farthest west.
train/5852	What is the direction of this push?	[ "toward the bride's foot", "away from the bride's foot" ]	1	A bride kicks over a pot of rice. Her foot pushes the pot, and the rice spills out.	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 bride's kick is a type of push. She kicks the pot of rice away from her foot and spills the rice. The direction of the push is away from the bride's foot.
train/5853	What is the capital of Montana?	[ "Phoenix", "Missoula", "Helena", "Cheyenne" ]	2		closed choice	grade4	social science	geography	State capitals	Identify the 50 state capitals		Helena is the capital of Montana.
train/5854	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." ]	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 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/5855	Which animal's body is better adapted for protection against a predator with sharp teeth?	[ "queen scallop", "hyrax" ]	0	Desert tortoises are adapted to protect themselves from a predator with sharp teeth. They have hard outer shells covering their bodies. A can pull its head and legs into its shell when attacked. Figure: desert tortoise.	closed choice	grade4	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 desert tortoise. The desert tortoise has a hard outer shell. Its body is adapted for protection against a predator with sharp teeth. The hard shell makes it difficult for predators to hurt or kill the desert tortoise. Now look at each animal. Figure out which animal has a similar adaptation. ...
train/5856	What is the capital of Iowa?	[ "Frankfort", "Des Moines", "Madison", "Cedar Rapids" ]	1		closed choice	grade5	social science	geography	State capitals	Identify state capitals of the Midwest		Des Moines is the capital of Iowa.
train/5857	Which solution has a higher concentration of purple particles?	[ "Solution A", "Solution B", "neither; their concentrations are the same" ]	1	The diagram below is a model of two solutions. Each purple 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 purple particles represent the solute. To figure out which solution has a higher concentration of purple particles, look at both the number of purple particles and the volume of the solvent in each container. Use the concentration formula to find the number of purple particles per mill...
train/5858	Which property do these three objects have in common?	[ "yellow", "transparent", "smooth" ]	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. You can see clearly through a transparent object. The glass bottle is transparent, but the gold ring and the car bumper are not. Yellow is a color. This color is yellow. The gold ring is yellow, but the glass bottle and the car bumper are not. A smoo...
train/5859	Does Danio rerio have cells that have a nucleus?	[ "no", "yes" ]	1	This organism is Danio rerio. It is a member of the animal kingdom. Danio rerio is commonly called a zebrafish. Young zebrafish are see-through! Scientists can easily observe their insides. This trait makes zebrafish a useful organism for scientists to study.	yes or no	grade4	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...	Danio rerio is an animal. Animal cells have a nucleus.
train/5860	Select the reptile below.	[ "western rattlesnake", "gorilla" ]	0	Reptiles have scaly, waterproof skin. Most reptiles live on land. An American alligator is an example of a reptile.	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 western rattlesnake is a reptile. It has scaly, waterproof skin. A gorilla is a mammal. It has fur and feeds its young milk.
train/5861	Does this passage describe the weather or the climate?	[ "climate", "weather" ]	0	Figure: Granada Province. Granada Province is located in southern Spain. Clouds often cover the mountains year-round in this part of the country. 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	grade5	natural science	earth-science	Weather and climate	Weather and climate around the world	The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere. Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day. Climate is the pattern of ...	Read the passage carefully. Granada Province is located in southern Spain. Clouds often cover the mountains year-round in this part of the country. The underlined part of the passage tells you about the usual pattern of cloud cover in Granada Province. This passage does not describe what the weather is like on a partic...
train/5862	Identify the question that Jada's experiment can best answer.	[ "Does linen fabric turn darker than cotton fabric when soaked in a mixture of black dye and water?", "Does fabric turn darker when soaked in a mixture of black dye and water for 15 minutes compared to 30 minutes?" ]	0	The passage below describes an experiment. Read the passage and then follow the instructions below. Jada prepared ten buckets, each with one gallon of boiling water and three tablespoons of black fabric dye. Jada soaked white linen fabric squares in five of the buckets, and white cotton fabric squares in the other fiv...	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/5863	What is the expected ratio of offspring that have horns to offspring that do not have horns? Choose the most likely ratio.	[ "0:4", "2:2", "1:3", "4:0", "3:1" ]	3	In a group of cows, some individuals have horns and others do not. In this group, the gene for the horns trait has two alleles. The allele for having horns (h) is recessive to the allele for not having horns (H). This Punnett square shows a cross between two cows.	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 that do or do not have horns, consider whether each phenotype is the dominant or recessive allele's version of the horns trait. The question tells you that the h allele, which is for having horns, is recessive to the H allele, which is for not having...
train/5864	Which property matches this object?	[ "hard", "soft" ]	1	Select the better answer.	closed choice	grade2	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.	Look at the object. Think about each property. A hard object keeps its shape when you squeeze it. The track suit is not hard. A soft object changes shape when you squeeze it. The track suit is soft.
train/5865	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...	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/5866	Which property matches this object?	[ "soft", "translucent" ]	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. A translucent object lets light through. But you cannot see clearly through a translucent object. The icicle is translucent. A soft object changes shape when pressed or squeezed. The icicle is not soft.
train/5867	What can Fernando and Manuel trade to each get what they want?	[ "Fernando can trade his tomatoes for Manuel's carrots.", "Manuel can trade his broccoli for Fernando's oranges.", "Manuel can trade his almonds for Fernando's tomatoes.", "Fernando can trade his tomatoes for Manuel's broccoli." ]	3	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. Fernando and Manuel open their lunch boxes in the school cafeteria. Neither Fernando nor Manuel got everything that they wanted. ...	closed choice	grade7	social science	economics	Basic economic principles	Trade and specialization		Look at the table and images. Fernando wants broccoli. Manuel 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/5868	Which property matches this object?	[ "stretchy", "transparent" ]	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. You can see clearly through a transparent object. The glass flask is transparent. A stretchy object gets longer when you pull on it. The glass flask is not stretchy.
train/5869	Select the fish below.	[ "salmon", "woodpecker" ]	0	Fish live underwater. They have fins, not limbs. A tiger shark is an example of a fish.	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 salmon is a fish. It lives underwater. It has fins, not limbs. A woodpecker is a bird. It has feathers, two wings, and a beak.
train/5870	Which of these states is farthest south?	[ "North Dakota", "California", "Rhode Island", "Washington" ]	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 south arrow is pointing. California is farthest south.
train/5871	Which of these states is farthest north?	[ "Indiana", "Arizona", "Florida", "Mississippi" ]	0		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 north arrow is pointing. Indiana is farthest north.
train/5872	What is the capital of South Dakota?	[ "Pierre", "Des Moines", "Sioux Falls", "Rapid City" ]	0		closed choice	grade5	social science	geography	State capitals	Identify state capitals of the Midwest		Pierre is the capital of South Dakota.
train/5873	Which part of a pine tree can grow into a new tree?	[ "a seed", "a needle" ]	0	This diagram shows the life cycle of a pine tree.	closed choice	grade8	natural science	biology	Plant reproduction	Angiosperm and conifer life cycles	Gymnosperms are plants that have seeds but not flowers. Conifers are a type of a gymnosperm. Instead of flowers, conifers have cones. Conifers use their cones for sexual reproduction. Most conifer trees have both male and female cones. The male cones produce pollen. The female cones produce eggs and a sticky substance ...	A seed can grow into a new tree. When a seed lands on the ground, it can germinate and grow into a new plant. A pine tree's needles are its leaves! The needles make most of the food for the tree using photosynthesis. They do not grow into a new tree.
train/5874	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 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." ]	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, but some of them are different shapes.	closed choice	grade7	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 1 attract. The magnets in Pair 2 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. Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magni...
train/5875	Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?	[ "sample B", "sample A", "neither; the samples have the same temperature" ]	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	grade6	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 B has more mass than each particle in sample A. The particles in sample B also have a higher average speed than the particles in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A. Because the particles in sample B have the higher average ...
train/5876	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 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." ]	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	grade7	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. Both magnet sizes and distance affect the magnitude of the magnetic force. The sizes of the magnets in Pair 1 are...
train/5877	Does this passage describe the weather or the climate?	[ "climate", "weather" ]	0	Figure: Tower of David. The Tower of David is in the Old City of Jerusalem. Winds in this part of Jerusalem are typically light and from the west. 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	grade5	natural science	earth-science	Weather and climate	Weather and climate around the world	The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere. Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day. Climate is the pattern of ...	Read the passage carefully. The Tower of David is in the Old City of Jerusalem. Winds in this part of Jerusalem are typically light and from the west. The underlined part of the passage tells you about the usual wind patterns in Jerusalem. This passage does not describe what the weather is like on a particular day. So,...
train/5878	Is Rangifer tarandus made up of many cells?	[ "no", "yes" ]	1	This organism is Rangifer tarandus. It is a member of the animal kingdom. Rangifer tarandus is commonly called a reindeer. Both male and female reindeer grow large antlers on their heads. Each year, reindeer naturally shed their antlers. The antlers usually fall off in the spring or summer. Then, over the next three to...	yes or no	grade4	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...	Rangifer tarandus is an animal. Animals are made up of many cells.
train/5879	What is the capital of Delaware?	[ "Dover", "Topeka", "Wilmington", "Wichita" ]	0		closed choice	grade3	social science	geography	State capitals	Identify state capitals of the Northeast		Dover is the capital of Delaware.
train/5880	Which property do these three objects have in common?	[ "rough", "sticky", "soft" ]	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. A rough object feels scratchy when you touch it. The dress and the ball of wet clay are not rough. A soft object changes shape when pressed or squeezed. All three objects are soft. A sticky object can attach or stick to other things. The dress and th...
train/5881	Look at the models of molecules below. Select the elementary substance.	[ "methane", "nitrogen", "methanol" ]	1		closed choice	grade6	natural science	chemistry	Atoms and molecules	Identify elementary substances and compounds using models	There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you. A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ...
train/5882	What is the capital of Tennessee?	[ "Columbia", "Bismarck", "Jackson", "Nashville" ]	3		closed choice	grade4	social science	geography	State capitals	Identify state capitals of the Southeast		Nashville is the capital of Tennessee.
train/5883	Which country is highlighted?	[ "Solomon Islands", "the Marshall Islands", "Australia", "Papua New Guinea" ]	2		closed choice	grade8	social science	geography	Oceania: geography	Identify and select countries of Oceania		This country is Australia. Is Australia a country or a continent? Both! Australia is a country in Oceania, a region made up of many lands and islands in the Pacific Ocean. Many people say that Australia is the world's smallest continent. But some people call Oceania a continent instead.
train/5884	Which month has the highest average precipitation in Santiago?	[ "June", "March", "October" ]	0	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 Santiago, look at the graph. Choice "Mar" is incorrect. Choice "Jun" is incorrect. Choice "Oct" is incorrect. June has an average monthly precipitation of about 80 millimeters. This is higher than in any other month. So, June has the highest average precipitation.
train/5885	What is the name of the colony shown?	[ "New Jersey", "Maine", "Massachusetts", "South Carolina" ]	0		closed choice	grade4	social science	us-history	English colonies in North America	Identify the Thirteen Colonies		The colony is New Jersey.
train/5886	According to the timeline, which of the following statements is true about the period between 500 BCE and 50 BCE?	[ "Rome was at war only a few times during these years.", "Rome was always at war during these years.", "Rome was at war for most of these years.", "Rome was almost never at war for more than two years." ]	2	Rome is the name of a city, but it can also refer to the Roman Republic. The Roman Republic began to rule many new places between 500 BCE and 50 BCE. In the questions that follow, you will learn more about the spread of the republic during that time. This timeline shows when the Roman Republic was at war and peace duri...	closed choice	grade7	social science	world-history	Rome and the Byzantine Empire	The Roman Republic: part II		Look at the timeline below. The different shades show periods of time when Rome was at war or at peace. The legend shows which shade represents war and which represents peace. On the timeline, periods of war take up more space than periods of peace do. So, Rome was at war for most of the years between 500 BCE and 50 BC...
train/5887	What is the name of the colony shown?	[ "Virginia", "Mississippi", "Washington, D.C.", "Maryland" ]	3		closed choice	grade8	social science	us-history	Colonial America	Identify the Thirteen Colonies		The colony is Maryland.
train/5888	Think about the magnetic force between the magnets in each pair. Which of the following statements is true?	[ "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." ]	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. 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/5889	Which of the following could Franklin's test show?	[ "if the spacecraft was damaged when using a parachute with a 1 m vent going 200 km per hour", "how steady a parachute with a 1 m vent was at 200 km per hour", "whether a parachute with a 1 m vent would swing too much at 400 km per hour" ]	1	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/5890	Which property do these four objects have in common?	[ "flexible", "translucent", "soft" ]	1	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 flexible object can be folded or bent without breaking easily. The jello is flexible, but the wet ice cube is not. A soft object changes shape when pressed or squeezed. The jello is soft, but the wet ice cube is not. A translucent object lets light...
train/5891	Will these magnets attract or repel each other?	[ "repel", "attract" ]	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 north pole of the other magnet. Poles that are different attract. So, these magnets will attract each other.
train/5892	Does Drosophila melanogaster have cells that have a nucleus?	[ "no", "yes" ]	1	This organism is Drosophila melanogaster. It is a member of the animal kingdom. Drosophila melanogaster is commonly called a fruit fly. Many scientists study fruit flies to learn about how animals grow and live.	yes or no	grade4	natural science	biology	Classification	Describe, classify, and compare kingdoms		Drosophila melanogaster is an animal. Animal cells have a nucleus.
train/5893	Which of these organisms contains matter that was once part of the bilberry?	[ "bear sedge", "grizzly bear" ]	1	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	grade7	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 bilberry.There are two paths matter can take from the bilberry to the Arctic fox: bilberry Arctic fox. bilberry brown lemming Arctic fox. There is one path matter can take ...
train/5894	During this time, thermal energy was transferred from () to ().	[ "each vial . . . the surroundings", "the surroundings . . . each vial" ]	1	Scientists in a laboratory were working with insulin, a protein often used to treat diabetes. They left two identical vials of insulin in different places. This table shows how the temperature of each vial changed over 15minutes.	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 vial increased, which means that the thermal energy of each vial increased. So, thermal energy was transferred from the surroundings to each vial.
train/5895	Which property do these three objects have in common?	[ "smooth", "bouncy", "scratchy" ]	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. A scratchy object is rough and itchy against your skin. None of the objects are scratchy. A bouncy object will bounce back from the floor if you drop it. The wet bar of soap and the ceramic mug are not bouncy. A smooth object is not scratchy or rough...
train/5896	Which animal's feet are also adapted for sticking to smooth surfaces?	[ "Madagascar day gecko", "American alligator" ]	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	grade5	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/5897	What is the capital of Utah?	[ "Boise", "Helena", "Richmond", "Salt Lake City" ]	3		closed choice	grade5	social science	geography	State capitals	Identify the 50 state capitals		Salt Lake City is the capital of Utah.
train/5898	Which of these states is farthest south?	[ "California", "Maine", "Nebraska", "Michigan" ]	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 south arrow is pointing. California is farthest south.
train/5899	Based on the text, where might you find these singing dogs?	[ "at dog shows in America", "in zoos in Australia", "in the mountains of New Guinea" ]	2	Read the text about singing dogs. One dog begins howling. Others join in. Some of the howls are high, and some of the howls are low. So, when a group howls together, it can sound like singing. These unique sounds are made by New Guinea singing dogs, and they are quite different from the sounds other dogs make. New Guin...	closed choice	grade3	language science	reading-comprehension	Informational texts: level 1	Read passages about animals		Look at the text in bold below. It tells you where you might find these singing dogs. New Guinea singing dogs live in the mountains on the island of New Guinea. However, they are very shy and rarely seen. They look a lot like other kinds of wild dogs, but in some ways, they are more like cats. They are great climbers a...

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