image_path stringlengths 7 10 | question stringlengths 14 289 | choices listlengths 2 5 | answer int32 0 4 | hint stringlengths 0 1.85k | task stringclasses 3
values | grade stringclasses 9
values | subject stringclasses 3
values | topic stringclasses 16
values | category stringclasses 75
values | skill stringclasses 158
values | lecture stringclasses 113
values | solution stringlengths 0 2.72k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
train/3000 | Which of the following organisms is the primary consumer in this food web? | [
"phytoplankton",
"kelp bass",
"orca",
"sea otter"
] | 1 | Below is a food web from an ocean ecosystem in Monterey Bay, off the coast of California.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade8 | natural science | biology | Ecological interactions | Interpret food webs 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... | Primary consumers eat producers. So, in a food web, primary consumers have arrows pointing to them from producers.
The kelp bass has an arrow pointing to it from the kelp. The kelp is a producer, so the kelp bass is a primary consumer.
The orca has an arrow pointing to it from the sea otter. The sea otter is not a prod... |
train/3001 | What is the name of the colony shown? | [
"Iowa",
"Virginia",
"New York",
"Massachusetts"
] | 3 | 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/3002 | In this experiment, which were part of a control group? | [
"the kites with tails",
"the kites without tails"
] | 1 | The passage below describes an experiment.
Josiah and his friend Marie flew nylon kites on the beach. They wondered if putting a tail on a kite would affect how well the kite flew.
Josiah flew a kite that did not have a tail for five minutes. Then, he attached a four-foot-long tail and flew the kite for five more minu... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify control and experimental groups | Experiments have variables, or parts that change. You can design an experiment to investigate whether changing a variable between different groups has a specific outcome.
For example, imagine you want to find out whether adding fertilizer to soil affects the height of pea plants. You could investigate this question wit... | In this experiment, Josiah and Marie investigated whether tails affect how well kites fly. There were no tails on the kites without tails. So, they were part of a control group. |
train/3003 | During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each greenhouse",
"each greenhouse . . . the surroundings"
] | 0 | Two identical greenhouses were next to each other. There were solar panels on the roof of one greenhouse but not on the roof of the other greenhouse. This table shows how the temperature of each greenhouse changed over 2hours. | 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 greenhouse increased, which means that the thermal energy of each greenhouse increased. So, thermal energy was transferred from the surroundings to each greenhouse. |
train/3004 | In this food chain, the scorpion is a consumer. Why? | [
"It makes its own food.",
"It eats another living thing."
] | 1 | This diagram shows a food chain from a desert ecosystem in Southern California. | closed choice | grade3 | natural science | biology | Ecosystems | Identify roles in food chains | Every living thing needs food to stay alive. Living things get their food in different ways. A food chain shows how living things in an ecosystem get their food.
Producers make their own food. Many producers use carbon dioxide, water, and sunlight to make sugar. This sugar is food for the producer.
Consumers eat other ... | In this food chain, the scorpion is a consumer because it eats another living thing. The scorpion in this food chain eats the yucca moth. |
train/3005 | What is the capital of Tennessee? | [
"Frankfort",
"Baton Rouge",
"Memphis",
"Nashville"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Nashville is the capital of Tennessee. | ||
train/3006 | Which trait did Glyptodon have? Select the trait you can observe on the fossil. | [
"long flippers",
"toes"
] | 1 | This picture shows the fossil of an ancient animal called Glyptodon. Glyptodon lived over 10,000,000 years ago. | closed choice | grade6 | natural science | earth-science | Fossils | Compare fossils to modern organisms | The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's activiti... | |
train/3007 | Which solution has a higher concentration of blue particles? | [
"Solution B",
"Solution A",
"neither; their concentrations are the same"
] | 1 | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. | closed choice | grade8 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the blue particles represent the solute. To figure out which solution has a higher concentration of blue particles, look at both the number of blue particles and the volume of the solvent in each container.
Use the concentration formula to find the number of blue particles per milliliter.
... |
train/3008 | Which statement describes the Buffalo Gap National Grassland ecosystem? | [
"It has cold winters and cool summers.",
"It has a medium amount of rain."
] | 1 | Figure: Buffalo Gap National Grassland.
Buffalo Gap National Grassland is a prairie grassland ecosystem in southwestern South Dakota. It is home to the endangered black-footed ferret. This is the only kind of ferret that is native to North America. | closed choice | grade6 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A prairie grassland is a type of ecosystem. Prairie grasslands have the following features: hot summers and cool winters, a medium amount of rain, and soil that is rich in nutrients. So, the following statements describe the Buffalo Gap National Grassland ecosystem: hot summers and cool winters, a medium amount of rain... |
train/3009 | What is the capital of Hawaii? | [
"Saint Paul",
"Honolulu",
"Boise",
"Nashville"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Honolulu is the capital of Hawaii. | ||
train/3010 | Which of these states is farthest west? | [
"Rhode Island",
"Florida",
"Delaware",
"Vermont"
] | 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. Florida is farthest west. | |
train/3011 | Select the organism in the same species as the yellow-footed gull. | [
"Sturnus vulgaris",
"Larus livens",
"Cyanocitta stelleri"
] | 1 | This organism is a yellow-footed gull. Its scientific name is Larus livens. | closed choice | grade4 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A yellow-footed gull's scientific name is Larus livens.
Cyanocitta stelleri does not have the same scientific name as a yellow-footed gull. So, Larus livens and Cyanocitta stelleri are not in the same species.
Larus livens has the same scientific name as a yellow-footed gull. So, these organisms are in the same species... |
train/3012 | Which country is highlighted? | [
"Kiribati",
"the Federated States of Micronesia",
"Tuvalu",
"Tonga"
] | 2 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Tuvalu. | ||
train/3013 | Select the amphibian below. | [
"green frog",
"cardinalfish"
] | 0 | Amphibians have moist skin and begin their lives in water. A Japanese tree frog is an example of an amphibian. | closed choice | grade3 | 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 green frog is an amphibian. It has moist skin and begins its life in water.
Frogs live near water or in damp places. Most frogs lay their eggs in water.
A cardinalfish is a fish. It lives underwater. It has fins, not limbs.
Cardinalfish often live near coral reefs. They are nocturnal, which means that they are active... |
train/3014 | Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | Two magnets are placed as shown. | closed choice | grade4 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
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/3015 | What is the probability that a cat produced by this cross will be heterozygous for the fur length gene? | [
"3/4",
"0/4",
"1/4",
"4/4",
"2/4"
] | 3 | In a group of cats, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele for long fur (f) is recessive to the allele for short fur (F).
This Punnett square shows a cross between two cats. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities of offspring types | Offspring genotypes: homozygous or heterozygous?
How do you determine whether an organism is homozygous or heterozygous for a gene? Look at the alleles in the organism's genotype for that gene.
An organism with two identical alleles for a gene is homozygous for that gene.
If both alleles are dominant, the organism is h... | |
train/3016 | What is the capital of New Jersey? | [
"Trenton",
"Hartford",
"Annapolis",
"Dover"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Trenton is the capital of New Jersey. | ||
train/3017 | Which property matches this object? | [
"blue",
"hard"
] | 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.
A hard object keeps its shape when you squeeze it. The jeans are not hard.
Blue is a color.
This color is blue. The jeans are blue. |
train/3018 | What is the capital of Vermont? | [
"Montpelier",
"Philadelphia",
"Burlington",
"Trenton"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Montpelier is the capital of Vermont. | ||
train/3019 | Which trait did this aurochs have? Select the trait you can observe on the fossil. | [
"a striped body",
"horns on its head"
] | 1 | This picture shows a fossil of an animal called an aurochs.
The aurochs was hunted by humans and went extinct around 1627. The oldest aurochs fossils are about 2,000,000 years old. | closed choice | grade6 | natural science | earth-science | Fossils | Compare fossils to modern organisms | The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's activiti... | |
train/3020 | Which of these oceans does the prime meridian intersect? | [
"the Arctic Ocean",
"the Pacific Ocean",
"the Indian Ocean"
] | 0 | closed choice | grade4 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The prime meridian is the line at 0° longitude. It intersects the Arctic Ocean. It does not intersect the Indian Ocean or the Pacific Ocean. | |
train/3021 | Which of the following could Dalton's test show? | [
"how well the weather station would work when it was windy",
"if the weather station would work when the temperature was 50°C"
] | 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/3022 | What is the capital of New Mexico? | [
"Portland",
"Jefferson City",
"Albuquerque",
"Santa Fe"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Santa Fe is the capital of New Mexico. | ||
train/3023 | Select the mammal below. | [
"kangaroo",
"red salamander"
] | 0 | Mammals have hair or fur and feed their young milk. A rabbit is an example of a mammal. | closed choice | grade3 | 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 kangaroo is a mammal. It has fur and feeds its young milk.
Kangaroos hop to move around. They use their large tails for balance while hopping.
A red salamander is an amphibian. It has moist skin and begins its life in water.
Red salamanders do not have lungs. They breathe through their skin! |
train/3024 | Which of these oceans does the prime meridian intersect? | [
"the Indian Ocean",
"the Pacific Ocean",
"the Atlantic Ocean"
] | 2 | closed choice | grade4 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The prime meridian is the line at 0° longitude. It intersects the Atlantic Ocean. It does not intersect the Pacific Ocean or the Indian Ocean. | |
train/3025 | Which better describes the Masoala National Park ecosystem? | [
"It has cold winters. It also has soil that is rich in nutrients.",
"It has year-round warm temperatures. It also has many different types of organisms."
] | 1 | Figure: Masoala National Park.
Masoala National Park is a tropical rain forest ecosystem in northeastern Madagascar. | 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 tropical rain forest is a type of ecosystem. Tropical rain forests have the following features: year-round rain and warm temperatures, soil that is poor in nutrients, and many different types of organisms. So, Masoala National Park has year-round warm temperatures. It also has many different types of organisms. |
train/3026 | What is the capital of North Carolina? | [
"Baton Rouge",
"Charlotte",
"Nashville",
"Raleigh"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | ||
train/3027 | Which is this organism's common name? | [
"Cathartes aura",
"turkey vulture"
] | 1 | This organism is Cathartes aura. It is also called a turkey vulture. | closed choice | grade7 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Cathartes aura is written in italics. The first word is capitalized, and the second word is not. So, it is the scientific name.
Cathartes aura is the organism's scientific name. So, you know that turkey vulture is the common name. |
train/3028 | Which property do these two objects have in common? | [
"blue",
"bouncy"
] | 0 | Select the better answer. | closed choice | grade2 | 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.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
Blue is a color.
This color is blue. Both objects are blue.
A bouncy object will bounce back from the floor if you drop it. The track suit is not bouncy.
The property that both objects have in common is blue. |
train/3029 | Which of these states is farthest north? | [
"Arkansas",
"Kentucky",
"Arizona",
"Alabama"
] | 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 north arrow is pointing. Kentucky is farthest north. | |
train/3030 | What can Haley and Irma trade to each get what they want? | [
"Haley can trade her tomatoes for Irma's broccoli.",
"Irma can trade her broccoli for Haley's oranges.",
"Irma can trade her almonds for Haley's tomatoes.",
"Haley can trade her tomatoes for Irma'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.
Haley and Irma open their lunch boxes in the school cafeteria. Neither Haley nor Irma got everything that they wanted. The table ... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Haley wants broccoli. Irma 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/3031 | Which country is highlighted? | [
"New Zealand",
"Tonga",
"Samoa",
"Tuvalu"
] | 1 | closed choice | grade7 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Tonga. | ||
train/3032 | Select the organism in the same species as the red-eyed tree frog. | [
"Bufo bufo",
"Lithobates catesbeianus",
"Agalychnis callidryas"
] | 2 | This organism is a red-eyed tree frog. Its scientific name is Agalychnis callidryas. | closed choice | grade5 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A red-eyed tree frog's scientific name is Agalychnis callidryas.
Bufo bufo does not have the same scientific name as a red-eyed tree frog. So, Agalychnis callidryas and Bufo bufo are not in the same species.
Lithobates catesbeianus does not have the same scientific name as a red-eyed tree frog. So, Agalychnis callidrya... |
train/3033 | What is the capital of Nevada? | [
"Carson City",
"Phoenix",
"Chicago",
"Sacramento"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Carson City is the capital of Nevada. | ||
train/3034 | Which continent is highlighted? | [
"Asia",
"Antarctica",
"North America",
"Africa"
] | 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 Asia. | |
train/3035 | Which of these states is farthest east? | [
"Oregon",
"Kansas",
"Montana",
"New Mexico"
] | 1 | 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 east arrow is pointing. Kansas is farthest east. | |
train/3036 | What is the capital of North Dakota? | [
"Bismarck",
"Frankfort",
"Pierre",
"Fargo"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Bismarck is the capital of North Dakota. | ||
train/3037 | 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 weaker in Pair 2.",
"The magnetic force is weaker in Pair 1."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | 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. | Distance affects the strength of the magnetic force. But the distance between the magnets in Pair 1 and in Pair 2 is the same.
So, the strength of the magnetic force is the same in both pairs. |
train/3038 | Which of the following could Zane's test show? | [
"how much athletes would sweat in the fabric",
"how long it would take the sample fabric to dry after it absorbed one drop of water",
"if the sample fabric would absorb one drop of water in less than one second"
] | 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/3039 | Which of the following could Adam's test show? | [
"how long it would take the sample fabric to dry after it absorbed one drop of water",
"how much athletes would sweat in the fabric",
"if the sample fabric would absorb one drop of water in less than one second"
] | 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 | 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/3040 | What is the capital of Indiana? | [
"Columbus",
"Charlotte",
"Fort Wayne",
"Indianapolis"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Indianapolis is the capital of Indiana. | ||
train/3041 | What is the name of the colony shown? | [
"Wisconsin",
"West Virginia",
"Virginia",
"New Hampshire"
] | 2 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Virginia.
The Virginia Colony included land that would later become part of the state of West Virginia. West Virginia was never its own colony. | ||
train/3042 | Identify the question that Cody's experiment can best answer. | [
"Do cardinals visit feeders containing sunflower seeds more often than feeders containing flax seeds?",
"Do cardinals eat more seeds per visit from feeders containing sunflower seeds compared to feeders containing flax seeds?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Cody set up five pairs of platform bird feeders around his yard. He filled one feeder in each pair with sunflower seeds and the other feeder with flax seeds. For one week, Cody watched cardinals visiting the feeders dur... | 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/3043 | What is the capital of New Mexico? | [
"Albuquerque",
"Santa Fe",
"Seattle",
"Sacramento"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Santa Fe is the capital of New Mexico. | ||
train/3044 | During this time, thermal energy was transferred from () to (). | [
"each battery . . . the surroundings",
"the surroundings . . . each battery"
] | 0 | Two friends bought phones that cost different amounts but had identical batteries. After using the phones for a while, both friends had to turn them off to let the batteries cool. This table shows how the temperature of each battery changed over 5minutes. | 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 battery decreased, which means that the thermal energy of each battery decreased. So, thermal energy was transferred from each battery to the surroundings. |
train/3045 | Which rhetorical appeal is primarily used in this ad? | [
"ethos (character)",
"pathos (emotion)",
"logos (reason)"
] | 0 | 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 ethos, or character, by emphasizing that the brand shares their customers' values. | |
train/3046 | Which term matches the picture? | [
"basket star",
"brittle star"
] | 0 | Read the text.
The Ophiuroidea are marine animals that are closely related to true sea stars, or the Asteroidea. Ophiuroids are divided into two groups: brittle stars and basket stars.
Brittle stars generally have five arms joined to a central body disk. Unlike those of true sea stars, the central body disks of brittle... | closed choice | grade6 | language science | vocabulary | Context clues | Determine the meaning of domain-specific words with pictures | The arms of a basket star split into many shorter arms, like branches and twigs on a tree. | |
train/3047 | Which country is highlighted? | [
"Solomon Islands",
"the Federated States of Micronesia",
"Papua New Guinea",
"New Zealand"
] | 2 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Papua New Guinea.
Why does Papua New Guinea share its island with another country?
Papua New Guinea takes up the eastern half of the island of New Guinea. The western half is part of Indonesia, an Asian country.
Beginning in the 17 th century, several countries took control of different parts of the isl... | ||
train/3048 | Which trait did Diplomystus have? Select the trait you can observe on the fossil. | [
"a small fin on its back",
"reddish-orange scales on its body"
] | 0 | This picture shows a fossil of an ancient fish called Diplomystus. Diplomystus lived in ancient lakes and ate smaller fish. | closed choice | grade4 | natural science | earth-science | Fossils | Compare fossils to modern organisms | The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's activiti... | |
train/3049 | What is the capital of Missouri? | [
"Kansas City",
"Bismarck",
"Jefferson City",
"Billings"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Jefferson City is the capital of Missouri. | ||
train/3050 | 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. | 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,... | Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magnitude of the magnetic force between them is greater.
There is a smaller distance between the magnets in Pair 2 than in Pair 1. So, the magnitude of the magnetic force is greater in Pair 2 than in Pair 1. |
train/3051 | 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 south pole of one magnet is closest to the south pole of the other magnet. Like poles repel. So, these magnets will repel each other. |
train/3052 | Which is this organism's scientific name? | [
"crown-of-thorns sea star",
"Acanthaster planci"
] | 1 | This organism is Acanthaster planci. It is also called a crown-of-thorns sea star. | closed choice | grade8 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Acanthaster planci is written in italics. The first word is capitalized, and the second word is not.
So, Acanthaster planci is the scientific name. |
train/3053 | Which property do these four objects have in common? | [
"fuzzy",
"smooth",
"soft"
] | 2 | Select the best answer. | closed choice | grade5 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A soft object changes shape when pressed or squeezed. All four objects are soft.
A fuzzy object is covered in soft hair. The stuffed dice are fuzzy, but the apron and the ball of wet clay are not.
A smooth object is not scratchy or rough. The ball of... |
train/3054 | What is the probability that a human produced by this cross will not have Thomsen disease? | [
"3/4",
"4/4",
"1/4",
"0/4",
"2/4"
] | 3 | This passage describes the Thomsen disease trait in humans:
Thomsen disease is a condition that causes temporary muscle stiffness. When a human with Thomsen disease first contracts a resting muscle, the muscle is slow to relax and may stay contracted for a while. But after repeated use, the muscle can contract and rela... | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities 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... | |
train/3055 | Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | Two magnets are placed as shown. | closed choice | grade4 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The 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/3056 | Which animal's skin is better adapted to hurt an attacking predator? | [
"porcupine",
"ring-necked pheasant"
] | 0 | Echidnas have sharp spines covering much of their skin. These spines are called quills. The skin of the is adapted to hurt an attacking predator.
Figure: echidna. | 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 echidna.
The echidna has sharp spines on its skin. Its skin is adapted to hurt an attacking predator. The spines can harm a predator that tries to bite the echidna.
Now look at each animal. Figure out which animal has a similar adaptation.
The porcupine has sharp spines on its skin. Its skin ... |
train/3057 | Which property do these four objects have in common? | [
"sour",
"opaque",
"hard"
] | 2 | Select the best answer. | closed choice | grade5 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A lemon has a sour taste. The water pitcher is not sour.
An opaque object does not let light through. The metal nail, the metal bar, and the car bumper are opaque, but the water pitcher is not.
A hard object does not change shape when pressed or sque... |
train/3058 | Which solution has a higher concentration of yellow particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 0 | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the yellow particles represent the solute. To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
Use the concentration formula to find the number of yellow particles per mill... |
train/3059 | Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 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 south pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. |
train/3060 | Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 0 | Figure: Machu Picchu.
Machu Picchu is an ancient city located in Peru. This mountainous area is known for being rainy and cloudy each year from December to March.
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.
Machu Picchu is an ancient city located in Peru. This mountainous area is known for being rainy and cloudy each year from December to March.
The underlined part of the passage tells you about the usual pattern of cloud cover at Machu Picchu. This passage does not describe what the weather is... |
train/3061 | Which animal's mouth is also adapted for gnawing? | [
"raccoon",
"nutria"
] | 1 | Marmots eat plant matter, such as leaves, stems, and seeds. They eat by biting off small pieces at a time, or gnawing. The 's mouth is adapted for gnawing.
Figure: marmot. | 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 marmot.
The marmot has large front teeth. Its mouth is adapted for gnawing. The large front teeth can help the marmot break off pieces of food that it can swallow.
Now look at each animal. Figure out which animal has a similar adaptation.
The nutria has large front teeth. Its mouth is adapted... |
train/3062 | Which of these states is farthest north? | [
"North Carolina",
"Louisiana",
"Colorado",
"Alabama"
] | 2 | 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 north arrow is pointing. Colorado is farthest north. | |
train/3063 | What can Danielle and Akira trade to each get what they want? | [
"Danielle can trade her tomatoes for Akira's sandwich.",
"Akira can trade her almonds for Danielle's tomatoes.",
"Danielle can trade her tomatoes for Akira's broccoli.",
"Akira can trade her broccoli for Danielle'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.
Danielle and Akira open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Danielle wan... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Danielle wanted broccoli in her lunch and Akira was hoping for tomatoes. Look at the labeled part of the images.
Danielle has tomatoes. Akira 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/3064 | Is chalk a mineral? | [
"yes",
"no"
] | 1 | Chalk has the following properties:
solid
naturally occurring
not a pure substance
no fixed crystal structure
not made by organisms | 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... | Chalk does not have all the properties of a mineral. So, chalk is not a mineral. |
train/3065 | What is the capital of Kentucky? | [
"Columbia",
"Frankfort",
"Bismarck",
"Denver"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Frankfort is the capital of Kentucky. | ||
train/3066 | Which solution has a higher concentration of pink particles? | [
"Solution A",
"neither; their concentrations are the same",
"Solution B"
] | 2 | The diagram below is a model of two solutions. Each pink ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container.
Use the concentration formula to find the number of pink particles per milliliter.
... |
train/3067 | Which of these states is farthest east? | [
"Idaho",
"Mississippi",
"California",
"Georgia"
] | 3 | 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 east arrow is pointing. Georgia is farthest east. | |
train/3068 | What is the capital of Alaska? | [
"Helena",
"Olympia",
"Juneau",
"Dover"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Juneau is the capital of Alaska. | ||
train/3069 | Which better describes the Catoctin Mountain Park ecosystem? | [
"It has warm, dry summers. It also has many different types of trees.",
"It has cold, wet winters. It also has only a few types of trees."
] | 1 | Figure: Catoctin Mountain Park.
Catoctin Mountain Park is a temperate deciduous forest ecosystem in Maryland. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | A temperate deciduous forest is a type of ecosystem. Temperate deciduous forests have the following features: warm, wet summers and cold, wet winters, soil that is rich in nutrients, and only a few types of trees. So, Catoctin Mountain Park has cold, wet winters. It also has only a few types of trees. |
train/3070 | 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 weaker in Pair 1.",
"The magnetic force is weaker in Pair 2."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade4 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are farther apart, the magnetic force between them is weaker.
The magnets in Pair 1 are farther apart than the magnets in Pair 2. So, the magnetic force is weaker in Pair 1 than in Pair 2. |
train/3071 | Select the organism in the same genus as the crown-of-thorns sea star. | [
"Acanthaster planci",
"Melanoplus bivittatus",
"Sphodromantis viridis"
] | 0 | This organism is a crown-of-thorns sea star. Its scientific name is Acanthaster planci. | 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 crown-of-thorns sea star's scientific name is Acanthaster planci. The first word of its scientific name is Acanthaster.
Sphodromantis viridis is in the genus Sphodromantis. The first word of its scientific name is Sphodromantis. So, Sphodromantis viridis and Acanthaster planci are not in the same genus.
Melanoplus bi... |
train/3072 | Which trait does this leaf-cutter ant have? | [
"It has long, thin legs.",
"The outside of its body is soft.",
"It eats leaves."
] | 0 | This picture shows a leaf-cutter ant. A leaf-cutter ant is a type of insect. Each leaf-cutter ant has a hard outer covering called an exoskeleton. The exoskeleton helps protect the ant's body.
This type of ant is called a leaf-cutter because it cuts pieces of leaves off plants. Leaf-cutter ants do not eat the leaf piec... | closed choice | grade3 | natural science | literacy-in-science | Animals | Benefits of group behavior: leaf-cutter ants | Both the picture and the text tell you about the traits of leaf-cutter ants. Start with the text.
This type of ant is called a leaf-cutter because it cuts pieces of leaves off plants. Leaf-cutter ants do not eat the leaf pieces. Instead, they use the pieces to grow their food.
The outside of a leaf-cutter ant's body is... | |
train/3073 | Identify the question that Myra and Nathan's experiment can best answer. | [
"Does Myra's snowboard slide down a hill in less time when it has a thin layer of wax or a thick layer of wax?",
"Does Myra'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.
Myra 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 | 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/3074 | 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 south pole of one magnet is closest to the south pole of the other magnet. Like poles repel. So, these magnets will repel each other. |
train/3075 | Which of these states is farthest west? | [
"Maryland",
"Michigan",
"New Jersey",
"Vermont"
] | 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. Michigan is farthest west. | |
train/3076 | Which two months have the same average temperature in Portland? | [
"April and May",
"July and August",
"September and October"
] | 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. 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 Portland, look at the graph.
Choice "Apr" is incorrect.
Choice "May" is incorrect.
Choice "Jul" is incorrect.
Choice "Aug" is incorrect.
Choice "Sep" is incorrect.
Choice "Oct" is incorrect.
Out of all the answer choices, only July and August have the same average temperatu... |
train/3077 | What is the capital of Maryland? | [
"Annapolis",
"Albany",
"Jersey City",
"Baltimore"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Annapolis is the capital of Maryland. | ||
train/3078 | What is the capital of Hawaii? | [
"Santa Fe",
"Jefferson City",
"Honolulu",
"Salem"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Honolulu is the capital of Hawaii. | ||
train/3079 | Which of the following could Shivani'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 | 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/3080 | Which of these states is farthest north? | [
"Massachusetts",
"New Jersey",
"Ohio",
"Colorado"
] | 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 north arrow is pointing. Massachusetts is farthest north. | |
train/3081 | What is the capital of North Dakota? | [
"Bismarck",
"Phoenix",
"Helena",
"Jefferson City"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Bismarck is the capital of North Dakota. | ||
train/3082 | Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | 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/3083 | Which solution has a higher concentration of green particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 0 | The diagram below is a model of two solutions. Each green ball represents one particle of solute. | closed choice | grade6 | 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/3084 | What is the name of the colony shown? | [
"New York",
"Virginia",
"New Jersey",
"Vermont"
] | 0 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is New York.
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/3085 | Which animal's feet are also adapted for swimming? | [
"lava gull",
"water rail"
] | 0 | Parakeet auklets are small seabirds that live in the Pacific Ocean. They eat mostly crustaceans, which they catch while swimming and diving. The feet of the are adapted for swimming.
Figure: parakeet auklet. | 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 parakeet auklet.
The parakeet auklet has webbed feet. Its feet are adapted for swimming. As it swims, the parakeet auklet uses its webbed feet to push itself through water.
Now look at each animal. Figure out which animal has a similar adaptation.
The lava gull has webbed feet. Its feet are a... |
train/3086 | What is the capital of Nevada? | [
"Las Vegas",
"Charleston",
"Nampa",
"Carson City"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Carson City is the capital of Nevada. | ||
train/3087 | Is muscovite a mineral or a rock? | [
"rock",
"mineral"
] | 1 | Muscovite has the following properties:
not made by organisms
fixed crystal structure
pure substance
solid
naturally occurring
fragile | closed choice | grade8 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | Muscovite has all the properties of a mineral. So, muscovite is a mineral. |
train/3088 | Which air temperature was measured within the outlined area shown? | [
"23°C",
"13°C",
"2°C"
] | 1 | The map below shows air temperatures in the lower atmosphere on February 21, 2017. The outlined area shows an air mass that influenced weather in Africa on that day.
Look at the map. Then, answer the question below.
Data source: United States National Oceanic and Atmospheric Administration/Earth System Research Laborat... | closed choice | grade6 | natural science | earth-science | Weather and climate | Identify and compare air masses | To study air masses, scientists can use maps that show conditions within Earth's atmosphere. For example, the map below uses color to show air temperatures.
The map's legend tells you the temperature that each color represents. Colors on the left in the legend represent lower temperatures than colors on the right. For ... | Look at the colors shown within the outlined area. Then, use the legend to determine which air temperatures those colors represent.
The legend tells you that this air mass contained air with temperatures between 5°C and 20°C.
13°C is within this range.
2°C and 23°C are outside of this range. |
train/3089 | What is the capital of Rhode Island? | [
"Albany",
"Providence",
"Newport",
"Concord"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Providence is the capital of Rhode Island. | ||
train/3090 | What is the capital of Connecticut? | [
"Montpelier",
"Bridgeport",
"Hartford",
"New Haven"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Hartford is the capital of Connecticut. | ||
train/3091 | Which of these states is farthest west? | [
"South Carolina",
"Vermont",
"Kansas",
"Florida"
] | 2 | 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 west arrow is pointing. Kansas is farthest west. | |
train/3092 | Which is this organism's scientific name? | [
"necklace sea star",
"Fromia monilis"
] | 1 | This organism is Fromia monilis. It is also called a necklace sea star. | closed choice | grade8 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Fromia monilis is written in italics. The first word is capitalized, and the second word is not.
So, Fromia monilis is the scientific name. |
train/3093 | Is Danio rerio made up of one cell? | [
"no",
"yes"
] | 0 | 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. Animals are made up of many cells. |
train/3094 | What is the capital of Connecticut? | [
"Albany",
"Dover",
"Minneapolis",
"Hartford"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Hartford is the capital of Connecticut. | ||
train/3095 | Based on the arrows, which of the following organisms is a consumer? | [
"bilberry",
"earthworm"
] | 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 | grade4 | natural science | biology | Ecosystems | Interpret food webs | 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... | Consumers eat other organisms. So, there are arrows in a food web that point from other organisms to consumers.
The bilberry does not have any arrows pointing to it. So, the bilberry is a producer, not a consumer.
The earthworm has arrows pointing to it from the Arctic fox and the collared lemming. So, the earthworm is... |
train/3096 | What is the capital of Minnesota? | [
"Saint Paul",
"Minneapolis",
"Columbus",
"New Orleans"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Saint Paul is the capital of Minnesota. | ||
train/3097 | Select the organism in the same genus as the black-footed cat. | [
"Lynx rufus",
"Felis silvestris",
"Lynx pardinus"
] | 1 | This organism is a black-footed cat. Its scientific name is Felis nigripes. | closed choice | grade4 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A black-footed cat's scientific name is Felis nigripes. The first word of its scientific name is Felis.
Felis silvestris is in the genus Felis. The first word of its scientific name is Felis. So, Felis silvestris and Felis nigripes are in the same genus.
Lynx rufus is in the genus Lynx. The first word of its scientific... |
train/3098 | Which material is this window made of? | [
"glass",
"cotton"
] | 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 window.
The window is made of two different materials. The window panes are made of glass. The rest of the window is made of wood. | |
train/3099 | What is the probability that a guppy produced by this cross will have a golden body? | [
"4/4",
"3/4",
"1/4",
"0/4",
"2/4"
] | 4 | In a group of guppies, some individuals have a gray body and others have a golden body. In this group, the gene for the body color trait has two alleles. The allele for a gray body (B) is dominant over the allele for a golden body (b).
This Punnett square shows a cross between two guppies. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities 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... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.