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train/1500 | 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 1.",
"The magnitude of the magnetic force is greater 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 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,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The larger the magnets, the greater the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is larger in Pair 2 than in Pair 1. So, the magnitud... |
train/1501 | Select the organism in the same species as the North American beaver. | [
"Ovis canadensis",
"Castor canadensis",
"Ilex cornuta"
] | 1 | This organism is a North American beaver. Its scientific name is Castor canadensis. | 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 North American beaver's scientific name is Castor canadensis.
Ilex cornuta does not have the same scientific name as a North American beaver. So, Castor canadensis and Ilex cornuta are not in the same species.
Castor canadensis has the same scientific name as a North American beaver. So, these organisms are in the sa... |
train/1502 | Select the bird below. | [
"box turtle",
"robin"
] | 1 | Birds have feathers, two wings, and a beak. A flamingo is an example of a bird. | 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 box turtle is a reptile. It has scaly, waterproof skin.
A robin is a bird. It has feathers, two wings, and a beak. |
train/1503 | What can Quincy and Kylie trade to each get what they want? | [
"Quincy can trade his tomatoes for Kylie's carrots.",
"Kylie can trade her almonds for Quincy's tomatoes.",
"Quincy can trade his tomatoes for Kylie's broccoli.",
"Kylie can trade her broccoli for Quincy's oranges."
] | 2 | 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.
Quincy and Kylie open their lunch boxes in the school cafeteria. Neither Quincy nor Kylie got everything that they wanted. The ta... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Quincy wants broccoli. Kylie 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/1504 | Which state is highlighted? | [
"Rhode Island",
"New York",
"Vermont",
"Maine"
] | 0 | closed choice | grade3 | social science | geography | States | Identify states of the Northeast | This state is Rhode Island. | ||
train/1505 | Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 0 | Figure: Nepal.
Nepal is home to Mount Everest, the world's tallest mountain. Nepal experiences cool and clear conditions each year during October, November, and December.
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.
Nepal is home to Mount Everest, the world's tallest mountain. Nepal experiences cool and clear conditions each year during October, November, and December.
The underlined part of the passage tells you about the usual temperature pattern in Nepal. This passage does not describe what the weath... |
train/1506 | Which solution has a higher concentration of blue particles? | [
"Solution A",
"neither; their concentrations are the same",
"Solution B"
] | 0 | 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/1507 | What is the capital of Massachusetts? | [
"Raleigh",
"Providence",
"Plymouth",
"Boston"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Boston is the capital of Massachusetts. | ||
train/1508 | Which animal's skin is better adapted as a warning sign to ward off predators? | [
"lichen katydid",
"lionfish"
] | 1 | Sharpnose-puffers are poisonous animals with brightly colored skin. The bright color serves as a warning sign that the animal is poisonous. The 's skin is adapted to ward off predators.
Figure: sharpnose-puffer. | 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 sharpnose-puffer.
The sharpnose-puffer has a poisonous body with brightly colored skin. Its skin is adapted to ward off predators. The bright colors serve as a warning sign that the sharpnose-puffer is poisonous.
Now look at each animal. Figure out which animal has a similar adaptation.
The l... |
train/1509 | Based on the event chain, when does a goose join the loon's team? | [
"right before the Winter Wind joins the hawk's team",
"right after the birds decide to play a game of lacrosse"
] | 1 | This event chain shows the events from an Ojibwe legend. | 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... | An event chain uses arrows to show the order of events. This event chain shows the events from an Ojibwe legend.
Follow the arrows to see the order of events. The second event is A goose joins the loon's team, and an owl joins the hawk's team. The event Two birds, a loon and a hawk, decide to play a game of lacrosse ha... |
train/1510 | Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"sample B",
"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 | grade8 | 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/1511 | Select the organism in the same species as the common kestrel. | [
"Balearica pavonina",
"Pelecanus rufescens",
"Falco tinnunculus"
] | 2 | This organism is a common kestrel. Its scientific name is Falco tinnunculus. | 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 common kestrel's scientific name is Falco tinnunculus.
Falco tinnunculus has the same scientific name as a common kestrel. So, these organisms are in the same species.
Pelecanus rufescens does not have the same scientific name as a common kestrel. So, Falco tinnunculus and Pelecanus rufescens are not in the same spec... |
train/1512 | Which of these states is farthest west? | [
"South Dakota",
"South Carolina",
"Florida",
"Maine"
] | 0 | 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. South Dakota is farthest west. | |
train/1513 | Is the following statement about our solar system true or false?
Jupiter's volume is more than 10,000 times as large as the volume of Mars. | [
"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 10,000 times the volume of Mars.
Then compare the result to the volume of Jupiter. Jupiter's volume is 1.43 x 10^15 km^3, which is less than 1.63 x 10^15 km^3. So, Jupiter's volume is less than 10,000 times as large as the volume of Mars. |
train/1514 | What is the name of the colony shown? | [
"Rhode Island",
"Ohio",
"New Hampshire",
"Vermont"
] | 2 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New Hampshire.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | ||
train/1515 | Based on the timeline, which of the following statements is true? | [
"Hinduism began about 1,000 years before Buddhism.",
"Hinduism began about 3,000 years before Islam.",
"Hinduism began about 500 years before Judaism."
] | 0 | 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/1516 | What is the capital of California? | [
"Sacramento",
"San Francisco",
"Los Angeles",
"Concord"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Sacramento is the capital of California. | ||
train/1517 | What is the capital of Kansas? | [
"Madison",
"Jefferson City",
"Boston",
"Topeka"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Topeka is the capital of Kansas. | ||
train/1518 | Which animal's limbs are also adapted for climbing trees? | [
"Galapagos giant tortoise",
"white-cheeked gibbon"
] | 1 | s live in the rain forests of Indonesia and Malaysia. Their limbs are adapted for climbing trees.
Figure: Sumatran orangutan. | 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.
Arms, legs, flippers, and wings are different types of limbs. The type of limbs an animal has is an example of an adaptation. Animals' limbs can be adapted in different ways. For examp... | Look at the picture of the Sumatran orangutan.
The Sumatran orangutan uses its long limbs to reach branches while climbing. It uses its fingers and toes to grab the branches.
Now look at each animal. Figure out which animal has a similar adaptation.
The white-cheeked gibbon has long limbs with fingers and toes. Its lim... |
train/1519 | What is the capital of Montana? | [
"Anchorage",
"Helena",
"Billings",
"Sacramento"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Helena is the capital of Montana. | ||
train/1520 | Which solution has a higher concentration of green particles? | [
"Solution A",
"neither; their concentrations are the same",
"Solution B"
] | 2 | The diagram below is a model of two solutions. Each green 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 green particles represent the solute. To figure out which solution has a higher concentration of green particles, look at both the number of green particles and the volume of the solvent in each container.
Use the concentration formula to find the number of green particles per millilit... |
train/1521 | Select the organism in the same genus as the rough-skinned newt. | [
"Taricha torosa",
"Ambystoma texanum",
"Lissotriton helveticus"
] | 0 | This organism is a rough-skinned newt. Its scientific name is Taricha granulosa. | 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 rough-skinned newt's scientific name is Taricha granulosa. The first word of its scientific name is Taricha.
Taricha torosa is in the genus Taricha. The first word of its scientific name is Taricha. So, Taricha torosa and Taricha granulosa are in the same genus.
Ambystoma texanum is in the genus Ambystoma. The first ... |
train/1522 | Select the organism in the same genus as the great egret. | [
"Tyto alba",
"Syngnathoides biaculeatus",
"Ardea purpurea"
] | 2 | This organism is a great egret. Its scientific name is Ardea alba. | closed choice | grade6 | 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 great egret's scientific name is Ardea alba. The first word of its scientific name is Ardea.
Ardea purpurea is in the genus Ardea. The first word of its scientific name is Ardea. So, Ardea purpurea and Ardea alba are in the same genus.
Tyto alba and Ardea alba are not in the same genus.
These organisms are not in the... |
train/1523 | 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 | grade8 | 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/1524 | Which of the following could Leroy's test show? | [
"if the weather station would work when the temperature was 50°C",
"how well the weather station would work when it was windy"
] | 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/1525 | Which bird's beak is also adapted to catch insects? | [
"common nighthawk",
"hanging parrot"
] | 0 | Barn swallows eat insects and other small invertebrates. The shape of the 's beak is adapted to catch insects.
Figure: barn swallow. | 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 barn swallow.
A short, thin beak is light and easy to move. The barn swallow uses its beak to grab fast-moving insects while flying.
Now look at each bird. Figure out which bird has a similar adaptation.
The common nighthawk has a short, thin beak. Its beak is adapted to catch insects.
The ha... |
train/1526 | In this food web, which organism contains matter that eventually moves to the earthworm? | [
"barren-ground caribou",
"Arctic fox"
] | 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 | grade5 | natural science | biology | Ecosystems | 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 to the earthworm.
Arrows point from the barren-ground caribou to the grizzly bear and the mushroom. The only arrow pointing from the grizzly bear leads to the mushroom. No arrows point from the mushroom... |
train/1527 | What can Clara and Gabriel trade to each get what they want? | [
"Gabriel can trade his broccoli for Clara's oranges.",
"Clara can trade her tomatoes for Gabriel's carrots.",
"Clara can trade her tomatoes for Gabriel's broccoli.",
"Gabriel can trade his almonds for Clara's tomatoes."
] | 2 | 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.
Clara and Gabriel open their lunch boxes in the school cafeteria. Neither Clara nor Gabriel got everything that they wanted. The ... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Clara wants broccoli. Gabriel 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/1528 | What is the capital of Mississippi? | [
"Jackson",
"Harrisburg",
"Biloxi",
"Nashville"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Jackson is the capital of Mississippi. | ||
train/1529 | Is a stuffed tiger a solid, a liquid, or a gas? | [
"a gas",
"a solid",
"a liquid"
] | 1 | closed choice | grade2 | 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 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 i... | 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. | |
train/1530 | What is the capital of Colorado? | [
"Montpelier",
"Denver",
"Colorado Springs",
"Boulder"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | ||
train/1531 | What is the capital of Wyoming? | [
"Provo",
"Cheyenne",
"Concord",
"Phoenix"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Cheyenne is the capital of Wyoming. | ||
train/1532 | What is the name of the colony shown? | [
"Michigan",
"New Hampshire",
"Massachusetts",
"North Carolina"
] | 2 | closed choice | grade8 | social science | us-history | Colonial 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/1533 | 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 | grade8 | 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/1534 | Which country is highlighted? | [
"Grenada",
"Saint Kitts and Nevis",
"Cuba",
"Haiti"
] | 3 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Haiti.
Does Haiti have any territorial disputes?
Haiti claims to own Navassa Island, which is a disputed territory. In other words, multiple countries or groups claim that the area rightfully belongs to them.
Navassa Island is also claimed by the United States. The United States claimed the island in 18... | ||
train/1535 | Which property matches this object? | [
"sweet",
"yellow"
] | 0 | 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.
Yellow is a color.
This color is yellow. The jam is not yellow.
Sugar has a sweet taste. The jam is sweet. |
train/1536 | Is Megaptera novaeangliae made up of many cells? | [
"yes",
"no"
] | 0 | This organism is Megaptera novaeangliae. It is a member of the animal kingdom.
Megaptera novaeangliae is commonly called a humpback whale. Humpback whales are famous for their underwater singing. They sing to communicate with one another over long distances. Male humpback whales can sing for up to 24 hours straight! | 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... | Megaptera novaeangliae is an animal. Animals are made up of many cells. |
train/1537 | Which rhetorical appeal is primarily used in this ad? | [
"ethos (character)",
"pathos (emotion)",
"logos (reason)"
] | 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 car with feelings of adventure and independence. | |
train/1538 | What is the capital of Oklahoma? | [
"Tulsa",
"Des Moines",
"Oklahoma City",
"Montgomery"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Oklahoma City is the capital of Oklahoma. | ||
train/1539 | What is the capital of North Carolina? | [
"Cheyenne",
"Raleigh",
"Fargo",
"Bismarck"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | ||
train/1540 | Complete the statement.
Benzene is (). | [
"a compound",
"an elementary substance"
] | 0 | The model below represents a molecule of benzene. Benzene is a chemical used to make plastic and styrofoam. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify 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 ... | Use the model to determine whether benzene is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the chemical el... |
train/1541 | 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 smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller 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 | 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.
Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magni... |
train/1542 | Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"sample B",
"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 | grade8 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | 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/1543 | Which of these states is farthest west? | [
"Idaho",
"New Hampshire",
"North Dakota",
"Florida"
] | 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. Idaho is farthest west. | |
train/1544 | 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/1545 | What is the capital of Hawaii? | [
"Carson City",
"Honolulu",
"Salem",
"Hilo"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Honolulu is the capital of Hawaii. | ||
train/1546 | What is this nightshade's scientific name? | [
"Solanum dulcamara",
"Solanum baretiae"
] | 1 | In the 1770s, Jeanne Baret sailed around the world to study plants. At the time, women were not allowed on long sailing expeditions. She had to pretend to be a man during the trip!
Jeanne Baret's work was not recognized for many years. In 2012, the scientific name of this plant, a type of nightshade, was chosen in hono... | 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 Jeanne Baret.
The word baretiae refers to Jeanne Baret. So, this nightshade's scientific name is Solanum baretiae. |
train/1547 | What is the capital of Illinois? | [
"Indianapolis",
"Jackson",
"Chicago",
"Springfield"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Springfield is the capital of Illinois. | ||
train/1548 | Which statement describes the Bering Land Bridge National Preserve ecosystem? | [
"It has soil that is frozen year-round.",
"It has dry, thin soil that is rich in nutrients.",
"It has many evergreen trees."
] | 0 | Figure: Bering Land Bridge National Preserve.
Bering Land Bridge National Preserve is a tundra ecosystem in western Alaska. The preserve is home to herds of caribou, muskoxen, and reindeer. | 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 tundra is a type of ecosystem. Tundras have the following features: long, cold winters and short, cold summers, soil that is frozen year-round, and mostly small plants. So, the following statement describes the Bering Land Bridge National Preserve ecosystem: long, cold winters and short, cold summers, soil that is fr... |
train/1549 | What is the capital of Nevada? | [
"Olympia",
"Honolulu",
"Reno",
"Carson City"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Carson City is the capital of Nevada. | ||
train/1550 | What is the capital of Oklahoma? | [
"Oklahoma City",
"Cedar Rapids",
"Austin",
"Tulsa"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Oklahoma City is the capital of Oklahoma. | ||
train/1551 | Identify the question that Rebecca's experiment can best answer. | [
"Do radishes grown under bright light get bigger than radishes grown under dim light?",
"Do radish plants grown under bright light have more leaves than radish plants grown under dim light?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Rebecca 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. Rebecca watered all the plants twice a day. Afte... | 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/1552 | What is the capital of Louisiana? | [
"New Orleans",
"Raleigh",
"Baton Rouge",
"Frankfort"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Baton Rouge is the capital of Louisiana. | ||
train/1553 | What is the name of the colony shown? | [
"New Hampshire",
"North Carolina",
"Vermont",
"Connecticut"
] | 0 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New Hampshire.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | ||
train/1554 | Identify the question that Mary and Harry's experiment can best answer. | [
"Does Mary's snowboard slide down a hill in less time when it has a thin layer of wax or a thick layer of wax?",
"Does Mary's snowboard slide down a hill in less time when it has a layer of wax or when it does not have a layer of wax?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Mary applied a thin layer of wax to the underside of her snowboard and rode the board straight down a hill. Then, she removed the wax and rode the snowboard straight down the hill again. She repeated the rides four more... | 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/1555 | Which material is this fire hydrant made of? | [
"metal",
"porcelain"
] | 0 | 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 fire hydrant.
The fire hydrant is made of metal.
Fire hydrants are made of strong metal to keep the water from leaking out. | |
train/1556 | 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."
] | 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 | 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/1557 | What can Ethan and Grace trade to each get what they want? | [
"Grace can trade her broccoli for Ethan's oranges.",
"Ethan can trade his tomatoes for Grace's carrots.",
"Ethan can trade his tomatoes for Grace's broccoli.",
"Grace can trade her almonds for Ethan's tomatoes."
] | 2 | 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.
Ethan and Grace open their lunch boxes in the school cafeteria. Neither Ethan nor Grace got everything that they wanted. The tabl... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Ethan wants broccoli. Grace 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/1558 | What is the capital of Tennessee? | [
"Nashville",
"Knoxville",
"Boulder",
"Memphis"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Nashville is the capital of Tennessee. | ||
train/1559 | What do hedgehogs do when they are scared? | [
"They shoot their spines like arrows.",
"They curl up into a ball."
] | 1 | Read the passage about hedgehogs.
Hedgehogs have sharp spines that cover their backs. Some people think they look like little spiky balls! When they are scared, hedgehogs roll up into a ball. This keeps them safe from foxes and other animals.
Hedgehogs eat things like insects, worms, and snails. They hunt for food in h... | closed choice | grade2 | language science | reading-comprehension | Independent reading comprehension | Read and understand informational passages | Look at the passage. It tells you what hedgehogs do when they are scared.
Hedgehogs have sharp spines that cover their backs. Some people think they look like little spiky balls! When they are scared, hedgehogs roll up into a ball. This keeps them safe from foxes and other animals. | |
train/1560 | Which country is highlighted? | [
"Cuba",
"Grenada",
"Saint Vincent and the Grenadines",
"Barbados"
] | 2 | closed choice | grade7 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Saint Vincent and the Grenadines. | ||
train/1561 | Which of the following fossils is older? Select the more likely answer. | [
"mammal tooth",
"dinosaur footprint"
] | 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 older:
The dinosaur footprint fossil is in a deeper layer in the rock sequence than the mammal tooth fossil. So, the dinosaur footprint fossil is most likely older than the mammal tooth fossil. |
train/1562 | Is a skull a mineral? | [
"no",
"yes"
] | 0 | A skull has the following properties:
animal body part
naturally occurring
no fixed crystal structure
not a pure substance
solid | 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... | A skull does not have all the properties of a mineral. So, a skull is not a mineral. |
train/1563 | Which better describes the Bering Land Bridge National Preserve ecosystem? | [
"It has warm summers. It also has cool winters.",
"It has short, cold summers. It also has soil that is frozen year-round."
] | 1 | Figure: Bering Land Bridge National Preserve.
Bering Land Bridge National Preserve is a tundra ecosystem in western Alaska. | closed choice | grade4 | 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 tundra is a type of ecosystem. Tundras have the following features: long, cold winters and short, cold summers, soil that is frozen year-round, and mostly small plants. So, Bering Land Bridge National Preserve has short, cold summers. It also has soil that is frozen year-round.. |
train/1564 | What is the capital of Massachusetts? | [
"Providence",
"Oklahoma City",
"Boston",
"Plymouth"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Boston is the capital of Massachusetts. | ||
train/1565 | Select the reptile below. | [
"Mojave rattlesnake",
"gray wolf"
] | 0 | Reptiles have scaly, waterproof skin. Most reptiles live on land. A tortoise 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 gray wolf is a mammal. It has fur and feeds its young milk.
A Mojave rattlesnake is a reptile. It has scaly, waterproof skin. |
train/1566 | 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 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater 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 and shapes. | closed choice | grade5 | natural science | physics | Magnets | 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.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... |
train/1567 | Which part of a flower can make eggs? | [
"the male part",
"the female part"
] | 1 | This diagram shows the life cycle of an apple tree. | closed choice | grade8 | natural science | biology | Plant reproduction | Angiosperm and conifer life cycles | Flowering plants, called angiosperms, use their flowers for sexual reproduction.
Flowers can have male parts, female parts, or both! The male part is called the stamen, and the female part is called the pistil.
Both the male and female parts are needed for sexual reproduction. The female part produces eggs, and the mal... | The female part of the flower makes eggs. The ovary, which is part of the pistil, makes eggs.
The male part of the flower makes pollen, not eggs. |
train/1568 | Which of these states is farthest east? | [
"Michigan",
"Iowa",
"Colorado",
"Texas"
] | 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 east arrow is pointing. Michigan is farthest east. | |
train/1569 | What is the name of the colony shown? | [
"Illinois",
"Connecticut",
"New Hampshire",
"Massachusetts"
] | 3 | closed choice | grade7 | social science | us-history | Colonial 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/1570 | What is the capital of Delaware? | [
"Wilmington",
"Annapolis",
"Huntington",
"Dover"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Dover is the capital of Delaware. | ||
train/1571 | During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each aquarium",
"each aquarium . . . the surroundings"
] | 1 | Two identical aquariums were next to an open window. One aquarium had a plastic cover on it, and the other was uncovered. This table shows how the temperature of each aquarium changed over 1.5hours. | 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 aquarium decreased, which means that the thermal energy of each aquarium decreased. So, thermal energy was transferred from each aquarium to the surroundings. |
train/1572 | Complete the statement.
Hydrogen chloride is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents a molecule of hydrogen chloride. Hydrogen chloride is part of the liquid in your stomach that helps digest food. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify 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 ... | Use the model to determine whether hydrogen chloride is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the c... |
train/1573 | Which of the following organisms is the secondary consumer in this food web? | [
"swallowtail caterpillar",
"gray fox",
"silver maple",
"persimmon tree"
] | 1 | 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 | grade7 | 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... | Secondary consumers eat primary consumers, and primary consumers eat producers. So, in a food web, secondary consumers have arrows pointing to them from primary consumers. Primary consumers have arrows pointing to them from producers.
The silver maple does not have any arrows pointing to it. So, the silver maple is not... |
train/1574 | Which fish's mouth is also adapted for tearing through meat? | [
"tiger moray",
"bluespine unicornfish"
] | 0 | Piranhas eat mostly fish. The 's mouth is adapted to tear through meat.
Figure: piranha. | closed choice | grade5 | 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 an animal's mouth is one example of an adaptation. Animals' mouths can be adapted in different ways. For example, a large mouth with sharp teeth might help an animal tear ... | Look at the picture of the piranha.
The piranha has large, sharp teeth. Its mouth is adapted for tearing through meat. The piranha uses its teeth to cut up meat into pieces it can swallow.
Now look at each animal. Figure out which animal has a similar adaptation.
The tiger moray has a large mouth and sharp teeth. Its m... |
train/1575 | Is a book a solid, a liquid, or a gas? | [
"a solid",
"a liquid",
"a gas"
] | 0 | 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 book is a solid. When you read a book, you bend the spine and turn the pages. But the book still has a shape of its own. | |
train/1576 | Select the statement that is true about Sydney's average monthly precipitation. | [
"Less precipitation falls in February than in November.",
"More precipitation falls in June than in December.",
"Each month has about the same amount of precipitation."
] | 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 | 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 Sydney, look at the graph.
Choice "Feb" is incorrect.
Choice "Jun" is incorrect.
Choice "Nov" is incorrect.
Choice "Dec" is incorrect.
Choice "More precipitation falls in June than in December." is incorrect.
June has a higher average monthly precipitation than December.
... |
train/1577 | How many years passed between the founding of Jamestown and the founding of Plymouth Colony? | [
"5 years",
"24 years",
"3 years",
"13 years"
] | 3 | The timeline below shows when several European colonies were founded, or started, in North America. Use the timeline to answer the question. | closed choice | grade5 | social science | us-history | English colonies in North America | Plymouth | Look at the timeline to find the answer.
Jamestown was founded in 1607. Plymouth (PLIH-meth) Colony was founded in 1620. To find how many years passed between those events, subtract 1607 from 1620.
Jamestown Colony was founded 13 years before Plymouth Colony. | |
train/1578 | What is the name of the colony shown? | [
"Virginia",
"Florida",
"Tennessee",
"Connecticut"
] | 3 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Connecticut. | ||
train/1579 | Which material is this flower pot made of? | [
"cotton",
"ceramic"
] | 1 | 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 flower pot.
The flower pot is made of ceramic.
Flower pots can also be made of other materials. Some flower pots are made of plastic. Other flower pots are made from a type of baked clay called terra cotta. | |
train/1580 | What is the capital of Rhode Island? | [
"Newport",
"Montpelier",
"Providence",
"Harrisburg"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Providence is the capital of Rhode Island. | ||
train/1581 | Select the bird below. | [
"white stork",
"sea otter"
] | 0 | Birds have feathers, two wings, and a beak. A woodpecker is an example of a bird. | 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 white stork is a bird. It has feathers, two wings, and a beak.
A sea otter is a mammal. It has fur and feeds its young milk. |
train/1582 | Which solution has a higher concentration of green particles? | [
"Solution A",
"neither; their concentrations are the same",
"Solution B"
] | 2 | The diagram below is a model of two solutions. Each green 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 green particles represent the solute. To figure out which solution has a higher concentration of green particles, look at both the number of green particles and the volume of the solvent in each container.
Use the concentration formula to find the number of green particles per millilit... |
train/1583 | Based on the text, which of the following things made the passenger pigeon migration a special event? | [
"The migration caused warmer weather and forest growth.",
"Only people in Florida and Texas could see the migration.",
"The migration only happened every one hundred years.",
"The sun was blocked out by huge flocks of birds."
] | 3 | Read the text about passenger pigeons.
Imagine the year 1800. The sky roars with a great clamor, like the sound of a thousand trains. The daytime sky becomes dark as sunlight is blotted out. Is it a terrible thunderstorm? No, it's actually a flock of thousands of passenger pigeons zooming overhead! Hundreds of years ag... | closed choice | grade5 | language science | reading-comprehension | Informational texts: level 1 | Read passages about animals | This detail made the passenger pigeon migration a special event:
The sun was blocked out by huge flocks of birds.
The first paragraph states that the daytime sky became dark as sunlight was blotted out by the pigeons.
These things are not stated in the text:
Only people in Florida and Texas could see the migration.
The... | |
train/1584 | Which continent is highlighted? | [
"Asia",
"North America",
"Europe"
] | 0 | 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 Asia. | |
train/1585 | What evidence of an earthquake does this picture show? | [
"There are few clouds in the sky.",
"Part of a building broke apart and fell down."
] | 1 | This picture was taken after an earthquake. During an earthquake, the ground shakes. | closed choice | grade2 | natural science | earth-science | Earth events | Find evidence of changes to Earth's surface | Evidence is information that tells you something happened.
How do you look for evidence of a change to Earth's surface?
There are many ways to find evidence of a change to Earth's surface. One way is to look at a picture that was taken after the change.
Here are some examples of what the evidence for different changes ... | |
train/1586 | Which continent is highlighted? | [
"Australia",
"Africa",
"North America",
"South America"
] | 1 | closed choice | grade5 | social science | geography | Oceans and continents | Identify 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 Africa. | |
train/1587 | Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 0 | Figure: Afghanistan.
Afghanistan is a mountainous country with cold, dry winters.
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.
Afghanistan is a mountainous country with cold, dry winters.
This passage tells you about the usual temperature pattern in Afghanistan. This passage does not describe what the weather is like on a particular day. So, this passage describes the climate. |
train/1588 | What can Bill and Nora trade to each get what they want? | [
"Bill can trade his tomatoes for Nora's broccoli.",
"Nora can trade her almonds for Bill's tomatoes.",
"Nora can trade her broccoli for Bill's oranges.",
"Bill can trade his tomatoes for Nora'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.
Bill and Nora open their lunch boxes in the school cafeteria. Neither Bill nor Nora got everything that they wanted. The table be... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Bill wants broccoli. Nora 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/1589 | What is the capital of Connecticut? | [
"Dover",
"Hartford",
"New Haven",
"Missoula"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Hartford is the capital of Connecticut. | ||
train/1590 | What is the capital of New Mexico? | [
"Albuquerque",
"Salt Lake City",
"Honolulu",
"Santa Fe"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the West | Santa Fe is the capital of New Mexico. | ||
train/1591 | Select the reptile below. | [
"salt water crocodile",
"gray tree frog",
"whale shark",
"giraffe"
] | 0 | Reptiles have scaly, waterproof skin. Most reptiles live on land.
Reptiles are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A box turtle is an example of a reptile. | 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 gray tree frog is an amphibian. It has moist skin and begins its life in water.
There are many kinds of tree frogs. Most tree frogs are very small. They can walk on thin branches.
A salt water crocodile is a reptile. It has scaly, waterproof skin.
Crocodiles hunt their prey in or near water.
A whale shark is a fish. ... |
train/1592 | Which material is this binder made of? | [
"plastic",
"ceramic"
] | 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 binder.
The binder is made of two different materials. The cover is made of plastic, and the rings are made of metal. | |
train/1593 | What is the name of the colony shown? | [
"Rhode Island",
"Tennessee",
"New Hampshire",
"Florida"
] | 0 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Rhode Island. | ||
train/1594 | Which country is highlighted? | [
"Saint Vincent and the Grenadines",
"Trinidad and Tobago",
"Dominica",
"Grenada"
] | 1 | closed choice | grade7 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Trinidad and Tobago. | ||
train/1595 | Which material is this clipboard made of? | [
"wood",
"concrete"
] | 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 clipboard.
The clipboard is made of two different materials. The back is made of wood, and the clip is made of metal.
Not all clipboards are made of wood. Some clipboards are made of other materials, such as plastic. | |
train/1596 | Which property do these four objects have in common? | [
"transparent",
"stretchy",
"sweet"
] | 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.
Sugar has a sweet taste. The balloon is not sweet.
A stretchy object gets longer when you pull on it. All four objects are stretchy.
You can see clearly through a transparent object. The rubber toys, the balloon, and the spring are not transparent.
T... |
train/1597 | Identify the question that Sam's experiment can best answer. | [
"Does apple juice expand more or less than water when it freezes?",
"Does water freeze more quickly than apple juice?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Sam poured 30 milliliters of water into each of six measuring cups. He poured the same volume of apple juice into another six measuring cups. He kept the measuring cups in a freezer for 48 hours. Sam then observed the f... | 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/1598 | Based on the arrows, which of the following living things is a producer? | [
"phytoplankton",
"zooplankton"
] | 0 | Below is a food web from an ocean ecosystem. The ecosystem is in Monterey Bay, off the coast of California.
A food web is a model that shows how the matter eaten by living things moves through an ecosystem. The arrows show how matter moves through the food web. | closed choice | grade3 | natural science | biology | Ecosystems | Interpret food webs | A food web is a model.
Models can make things in nature easier to understand. Models can be simpler than the things they represent. A food web is a model that shows where living things in an ecosystem get their food. If a food web showed every living thing in an ecosystem, the food web would be hard to understand. So, ... | Producers make their own food. They do not eat other living things. So, there are no arrows in a food web that point from other living things to producers.
The phytoplankton does not have any arrows pointing to it. So, the phytoplankton is a producer.
The zooplankton has an arrow pointing to it from the phytoplankton. ... |
train/1599 | Which animal's legs are also adapted for wading? | [
"hammerkop",
"flying fox"
] | 0 | Flamingos live near marshes, rivers, and oceans. They eat small crustaceans that live in shallow water. Flamingos get their food by walking through water, or wading.
The 's legs are adapted for wading. They are lightweight and keep the bird's body above the water.
Figure: flamingo. | 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.
Arms, legs, flippers, and wings are different types of limbs. The type of limbs an animal has is an example of an adaptation. Animals' limbs can be adapted in different ways. For examp... | Look at the picture of the flamingo.
Long legs help the flamingo keep its body above the surface of the water while wading. Thin legs are easier to move through the water.
Now look at each animal. Figure out which animal has a similar adaptation.
The hammerkop has long, thin legs. Its legs are adapted for wading.
The f... |
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