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Not supported with pagination yet | Which text message is more formal? | [
"Heads up! Benton is here. In the lobby.",
"Ms. Benton is already here. She's waiting in the lobby."
] | 1 | closed choice | grade11 | language science | writing-strategies | Audience, purpose, and tone | Which text is most formal? | Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is... | The second text message is more formal. It uses complete sentences, avoids slang (heads up), and uses the person's title (Ms. Benton). The other text message includes more casual language and sentence fragments. | |
Select the fish below. | [
"catfish",
"fruit bat"
] | 0 | Fish live underwater. They have fins, not limbs. A salmon is an example of a fish. | 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 catfish is a fish. It lives underwater. It has fins, not limbs.
Unlike most other fish, catfish do not have scales! They have slimy skin.
A fruit bat is a mammal. It has hair and feeds its young milk.
Fruit bats eat fruit and drink nectar from flowers. They have special teeth to help them bite through fruit skins. | |
Which is this organism's scientific name? | [
"Giraffa camelopardalis",
"giraffe"
] | 0 | This organism is Giraffa camelopardalis. It is also called a giraffe. | 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,... | Giraffa camelopardalis is written in italics. The first word is capitalized, and the second word is not.
So, Giraffa camelopardalis is the scientific name. | |
Not supported with pagination yet | Select the one animal that has all of the amphibian traits listed above. | [
"American green tree frogs have moist, smooth skin and lay eggs with no shells. They live underwater for the first part of their lives. As adults, they live on land near ponds or swamps. Adult male American green tree frogs have a loud mating call.",
"Chinese alligators live in lakes and streams in eastern China.... | 0 | Amphibians are a group of animals with similar traits. The following traits can be used to identify amphibians:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Amphibians have the following traits:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to th... |
Which property do these three objects have in common? | [
"bouncy",
"stretchy",
"colorful"
] | 2 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A stretchy object gets longer when you pull on it. The candy sprinkles and the rainbow sucker are not stretchy.
A colorful object has one or more bright colors. All three objects are colorful.
A bouncy object will bounce back from the floor if you dr... | |
Which of these states is farthest west? | [
"Illinois",
"Vermont",
"Arkansas",
"Connecticut"
] | 2 | 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. Arkansas is farthest west. | ||
Which property do these four objects have in common? | [
"flexible",
"fragile",
"rough"
] | 0 | 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 fragile object will break into pieces if you drop it. The paper, the track suit, and the belt are not fragile.
A flexible object can be folded or bent without breaking easily. All four objects are flexible.
A rough object feels scratchy when you to... | |
Not supported with pagination yet | Select the animal that does not have a backbone. | [
"redback spider",
"carp"
] | 0 | Hint: Insects, spiders, and worms do not have backbones. | closed choice | grade2 | natural science | biology | Classification | Identify animals with and without backbones | Some animals have a backbone. The backbone is made of many bones in an animal's back. An animal's backbone helps connect the different parts of its body. In the drawings below, each animal's backbone is colored orange.
Other animals do not have a backbone. In fact, these animals don't have any bones! Some animals witho... | Like other spiders, a redback spider does not have a backbone. It has a hard outer cover.
A carp is a fish. Like other fish, a carp has a backbone. |
Which country is highlighted? | [
"Nauru",
"New Zealand",
"Solomon Islands",
"Australia"
] | 3 | closed choice | grade7 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Australia.
Is Australia a country or a continent?
Both! Australia is a country in Oceania, a region made up of many lands and islands in the Pacific Ocean. Many people say that Australia is the world's smallest continent. But some people call Oceania a continent instead. | |||
Not supported with pagination yet | What do these two changes have in common?
roasting a marshmallow over a campfire
baking a loaf of bread | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are chemical changes."
] | 2 | closed choice | grade7 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Roasting a marshmallow is a chemical change. The type of matter on the outside of the marshmallow changes. As a marshmallow is roasted, it turns brown and crispy.
Baking a loaf of bread is a chemical change. The type of matter in the dough changes when it is baked. The dough turns into ... | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade3 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south.
Here are some examples of magnets.... | Will these magnets attract or repel? To find out, look at which poles are closest to each other.
The south pole of one magnet is closest to the south pole of the other magnet. Poles that are the same repel. So, these magnets will repel each other. | |
Which property do these two objects have in common? | [
"yellow",
"sticky"
] | 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.
A sticky object can stick to other things. The chalk is not sticky.
Yellow is a color.
This color is yellow. Both objects are yellow.
The property that both objects have in common is yellow. | |
Which bird's beak is also adapted to get nectar out of long flowers? | [
"hawfinch",
"rufous hummingbird"
] | 1 | Green violetears live in the forests of Central and South America. The shape of the 's beak is adapted to get nectar out of long flowers.
Figure: green violetear. | 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 green violetear.
The green violetear has a long, thin beak. Its beak is adapted to get nectar out of long flowers. The green violetear's long, thin beak can reach deep into the flowers.
Now look at each bird. Figure out which bird has a similar adaptation.
The rufous hummingbird has a long, t... | |
Which property do these three objects have in common? | [
"fragile",
"blue",
"sticky"
] | 1 | Select the best answer. | closed choice | grade3 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A sticky object can attach or stick to other things. The toothpaste is sticky, but the jeans and the track suit are not.
Blue is a color.
This color is blue. All three objects are blue.
A fragile object will break into pieces if you drop it. The jean... | |
Not supported with pagination yet | Is there a surplus or a shortage of posters? | [
"shortage",
"surplus"
] | 1 | A poster company printed up 100 posters with its latest design. Posters cost $15 each. At that price, there are 80 people who want to buy one. | closed choice | grade5 | social science | economics | Supply and demand | Identify shortage and surplus | There is a surplus if there is too much for sale at a given price.
There is a shortage if there is not enough for sale at a given price.
Surpluses and shortages usually happen when people who are selling goods or services charge too much or too little.
When the price is too high, consumers will not want to buy much of ... | At the current price, there are too many posters for sale. There are 100 posters for sale, but only 80 people want to buy one.
So, there is a surplus of posters. The poster company will not get any money for the leftover posters. |
What can Herman and Clara trade to each get what they want? | [
"Herman can trade his tomatoes for Clara's broccoli.",
"Clara can trade her broccoli for Herman's oranges.",
"Herman can trade his tomatoes for Clara's carrots.",
"Clara can trade her almonds for Herman's tomatoes."
] | 0 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Herman and Clara open their lunch boxes in the school cafeteria. Neither Herman nor Clara 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.
Herman wants broccoli. Clara 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. | ||
Which trait did Fagus have? Select the trait you can observe on the fossil. | [
"oval-shaped leaves",
"orange fruit",
"thorns along the sides of each leaf"
] | 0 | This picture shows a fossil of Fagus, a plant that grew in ancient forests. The fossil shows one of the Fagus's leaves. | closed choice | grade3 | 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... | ||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
battle - bluff | [
"behalf",
"brow"
] | 0 | closed choice | grade7 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since behalf is between the guide words battle - bluff, it would be found on that page. | |
Not supported with pagination yet | Select the one animal that has all of the reptile traits listed above. | [
"American green tree frogs have moist, smooth skin and lay eggs with no shells. They live underwater for the first part of their lives. As adults, they live on land near ponds or swamps. Adult male American green tree frogs have a loud mating call.",
"Cobras hatch from eggs with shells. They have a wide, flat hoo... | 1 | Reptiles are a group of animals with similar traits. The following traits can be used to identify reptiles:
They have scaly, waterproof skin.
They make eggs with shells. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Reptiles have the following traits:
They have scaly, waterproof skin.
They make eggs with shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A green tree frog has the followi... |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
rat - rigid | [
"rehearse",
"roast"
] | 0 | closed choice | grade5 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since rehearse is between the guide words rat - rigid, it would be found on that page. | |
Identify the question that Austen's experiment can best answer. | [
"Do cardinals eat more seeds per visit from feeders containing sunflower seeds compared to feeders containing flax seeds?",
"Do cardinals visit feeders containing sunflower seeds more often than feeders containing flax seeds?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Austen 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, Austen watched cardinals visiting the feeders... | 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... | ||
Not supported with pagination yet | What information supports the conclusion that Doug inherited this trait? | [
"Doug's parents were born with straight hair. They passed down this trait to Doug.",
"Doug and his father both have short hair."
] | 0 | Read the description of a trait.
Doug has straight hair. | closed choice | grade6 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Which of these states is farthest east? | [
"New Hampshire",
"Kansas",
"New Mexico",
"Ohio"
] | 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 east arrow is pointing. New Hampshire is farthest east. | ||
Not supported with pagination yet | Is the following trait inherited or acquired?
Maura has naturally red hair. | [
"inherited",
"acquired"
] | 0 | Hint: Some people dye their hair. But this does not change their natural hair color. | closed choice | grade4 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | Humans do not choose their natural hair color. Instead, children get their natural hair color from their parents. So, Maura's hair color is an inherited trait. |
Which animal's limbs are also adapted for swimming? | [
"jerboa",
"Galapagos sea lion"
] | 1 | Humpback whales are found in the world's oceans. They live underwater, but come to the surface to breathe air.
The has flippers for limbs. Its limbs are adapted for swimming.
Figure: humpback whale. | 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 humpback whale.
The humpback whale uses its flippers to help push itself through water. The flippers can also help it change direction while swimming.
Now look at each animal. Figure out which animal has a similar adaptation.
The Galapagos sea lion has flippers. Its limbs are adapted for swim... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
I'm never setting foot in any seafood restaurant again. We just had a ridiculously overpriced dinner at Max's Seafood Hut, and I have no interest in repeating that experience. | [
"circular reasoning: an argument that supports a claim with the claim itself",
"hasty generalization: a very broad claim based on very little evidence"
] | 1 | closed choice | grade8 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that all seafood restaurants are overpriced. However, even though one seafood restaurant was overpriced, that doesn't necessarily mean that all seafood restaurants are overpriced. This illustrates a type of logical fallacy known as a hasty generalization. | |
Which three months have an average precipitation of around 3.5inches in Seattle? | [
"May, June, and October",
"April, May, and November",
"February, March, and October"
] | 2 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location.
A... | To describe the average precipitation trends in Seattle, look at the graph.
Choice "Feb" is incorrect.
Choice "Mar" is incorrect.
Choice "Apr" is incorrect.
Choice "May" is incorrect.
Choice "Jun" is incorrect.
Choice "Oct" is incorrect.
Choice "Nov" is incorrect.
Choice "February, March, and October" is incorrect.
Feb... | |
What is the probability that a pea plant produced by this cross will be homozygous recessive for the pod color gene? | [
"1/4",
"4/4",
"3/4",
"2/4",
"0/4"
] | 3 | In a group of pea plants, some individuals have green pods and others have yellow pods. In this group, the gene for the pod color trait has two alleles. The allele for green pods (D) is dominant over the allele for yellow pods (d).
This Punnett square shows a cross between two pea plants. | 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... | ||
Not supported with pagination yet | Which closing is correct for a letter? | [
"Best regards,\nBen",
"Best Regards,\nBen"
] | 0 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The second closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | Would you find the word crystal on a dictionary page with the following guide words?
carrot - congress | [
"yes",
"no"
] | 1 | yes or no | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since crystal is not between the guide words carrot - congress, it would not be found on that page. | |
Select the chemical formula for this molecule. | [
"HS",
"H3S2",
"H2S",
"HS2"
] | 2 | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Identify chemical formulas for ball-and-stick models | Every substance around you is made up of atoms. Atoms can link together to form molecules. The links between atoms in a molecule are called chemical bonds. Different molecules are made up of different chemical elements, or types of atoms, bonded together.
Scientists use both ball-and-stick models and chemical formulas ... | H is the symbol for hydrogen. According to the legend, hydrogen atoms are shown in light gray. S is the symbol for sulfur. According to the legend, sulfur atoms are shown in yellow. This ball-and-stick model shows a molecule with two hydrogen atoms and one sulfur atom. The chemical formula will contain the symbols H an... | ||
Is turquoise a mineral or a rock? | [
"mineral",
"rock"
] | 0 | Turquoise has the following properties:
not made by living things
pure substance
blue-green
found in nature
solid
fixed crystal structure | 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... | Turquoise has all the properties of a mineral. So, turquoise is a mineral. | |
Is a baseball bat a solid, a liquid, or a gas? | [
"a gas",
"a liquid",
"a solid"
] | 2 | 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 baseball bat is a solid. A solid has a size and shape of its own.
If you pick up a baseball bat, it will still have a size and shape of its own. | ||
Not supported with pagination yet | Which object has the most thermal energy? | [
"a metal paper clip at a temperature of 81°F",
"a metal paper clip at a temperature of 89°F",
"a metal paper clip at a temperature of 90°F"
] | 2 | The objects are identical except for their temperatures. | closed choice | grade4 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter move faster, the temperature goes up. The matter now has both ... | All three metal paper clips have the same mass but different temperatures. Since the 90°F paper clip is the hottest, it has the most thermal energy. |
Which country is highlighted? | [
"Tuvalu",
"Samoa",
"the Federated States of Micronesia",
"Palau"
] | 3 | closed choice | grade6 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Palau. | |||
Not supported with pagination yet | Which is a complete sentence? | [
"The cook always wears an apron.",
"Will change out of her wet pants and shirt."
] | 0 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence, a fragment, or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A sentence fragment is a group of words that does not express a complete thought. It is usually missing a subject or a verb.
Knows the answer.
This is a sentence fragment. It is missing a subj... | The cook always wears an apron is a complete sentence. The subject is the cook, and the verb is wears. | |
Which of the following could Jeremiah's test show? | [
"the amount of sunlight the roof would get throughout the year",
"which side of the roof got more sun over one day",
"how many solar panels could fit on each side of the roof"
] | 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... | ||
Select the organism in the same genus as the mountain zebra. | [
"Macropus rufus",
"Equus grevyi",
"Cervus canadensis"
] | 1 | This organism is a mountain zebra. Its scientific name is Equus zebra. | 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 mountain zebra's scientific name is Equus zebra. The first word of its scientific name is Equus.
Equus grevyi is in the genus Equus. The first word of its scientific name is Equus. So, Equus grevyi and Equus zebra are in the same genus.
Macropus rufus is in the genus Macropus. The first word of its scientific name is... | |
Which of these continents does the prime meridian intersect? | [
"Australia",
"North America",
"Europe"
] | 2 | closed choice | grade5 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The prime meridian is the line at 0° longitude. It intersects Europe. It does not intersect Australia or North America. | ||
Which animal's feet are also adapted for grabbing prey? | [
"Australian pelican",
"red-tailed hawk"
] | 1 | Golden eagles eat fish, mammals, and other birds. The 's feet are adapted to grab prey.
Figure: golden eagle. | 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 golden eagle.
The golden eagle has long toes with sharp claws. Its feet are adapted for grabbing prey. The sharp claws can help the golden eagle attack and kill its prey. The long toes can help it hold on to its prey.
Now look at each animal. Figure out which animal has a similar adaptation.
... | |
Not supported with pagination yet | Compare the motion of three bicycles. Which bicycle was moving at the highest speed? | [
"a bicycle that moved 130miles west in 10hours",
"a bicycle that moved 55miles north in 10hours",
"a bicycle that moved 170miles west in 10hours"
] | 2 | closed choice | grade3 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the mile.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about objects moving f... | Look at the distance each bicycle moved and the time it took to move that distance. The direction each bicycle moved does not affect its speed.
Notice that each bicycle moved for 10 hours. The bicycle that moved 170 miles moved the farthest distance in that time. So, that bicycle must have moved at the highest speed. | |
Not supported with pagination yet | Would you find the word down on a dictionary page with the following guide words?
dandy - dirty | [
"no",
"yes"
] | 0 | yes or no | grade8 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since down is not between the guide words dandy - dirty, it would not be found on that page. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Lena can ride a motorcycle. | [
"inherited",
"acquired"
] | 1 | Hint: Riding a motorcycle well takes practice. | closed choice | grade3 | natural science | biology | Heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | People are not born knowing how to ride a motorcycle. Instead, many people learn how to ride. So, riding a motorcycle is an acquired trait. |
Not supported with pagination yet | Select the living thing. | [
"echidna",
"flower pot"
] | 0 | closed choice | grade3 | natural science | biology | Classification | Identify living and nonliving things | All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. Living things use this energy to grow and change. All living things grow and change during their lives.
All living things sense changes in the world around them. Living things might sense ... | An echidna is a living thing.
Echidnas grow and respond to the world around them. They need food and water.
Echidnas are mammals. Most mammals give birth to live young, but echidnas lay eggs! Egg-laying mammals are called monotremes.
A flower pot is not a living thing.
Flower pots do not have all of the traits of livin... | |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Aunt Kate,",
"dear Aunt Kate,"
] | 0 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The second greeting is correct:
Its first word is capitalized, and it ends with a comma. Aunt Kate is capitalized because it is a proper noun. | |
Look at the models of molecules below. Select the elementary substance. | [
"cyclopropane",
"trichlorofluoromethane",
"oxygen"
] | 2 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | |||
Not supported with pagination yet | What does the idiom in this text suggest?
Mr. and Mrs. Underwood usually see eye to eye, but not when it comes to the controversial mayoral race. | [
"Mr. and Mrs. Underwood look each other in the eye.",
"Mr. and Mrs. Underwood usually agree."
] | 1 | closed choice | grade10 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
An idiom is an expression that cannot be understood literally. Its meaning must be learned.
The assignment was a piece of cake. | The text uses an idiom, an expression that cannot be understood literally.
The idiom see eye to eye suggests that Mr. and Mrs. Underwood usually agree. When you see eye to eye with someone, you share their opinion. | |
What is the capital of North Carolina? | [
"Frankfort",
"Raleigh",
"Austin",
"Atlanta"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Raleigh is the capital of North Carolina. | |||
Not supported with pagination yet | Using only these supplies, which question can Scott investigate with an experiment? | [
"Do cloth towels dry faster if they are hung in the laundry room or in the backyard?",
"Does a small cloth towel or a large cloth towel dry faster when hung in the backyard?",
"When hung in the laundry room, do black cloth towels or white cloth towels dry more quickly?"
] | 0 | After Scott cleans up a spill, he hangs a wet cloth towel in the laundry room. Two hours later, he notices that the towel has partially dried. He wonders what factors affect how cloth dries. So, he decides to design an experiment. He has the following supplies available:
two identical white cloth towels
water
a clothes... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
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. | |
Not supported with pagination yet | Which figure of speech is used in this text?
You've reached Peter Sawyer's voice mail. Please leave a detailed message at the beep, and I will return your call at my earliest convenience. | [
"onomatopoeia",
"idiom"
] | 0 | closed choice | grade7 | language science | figurative-language | Literary devices | Classify figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses onomatopoeia, a word that expresses a sound.
Beep represents the sound that tells the caller to start recording a message. | |
Select the organism in the same genus as the salt marsh snake. | [
"Lacerta agilis",
"Corallus hortulanus",
"Nerodia cyclopion"
] | 2 | This organism is a salt marsh snake. Its scientific name is Nerodia clarkii. | 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 salt marsh snake's scientific name is Nerodia clarkii. The first word of its scientific name is Nerodia.
Nerodia cyclopion is in the genus Nerodia. The first word of its scientific name is Nerodia. So, Nerodia cyclopion and Nerodia clarkii are in the same genus.
Lacerta agilis is in the genus Lacerta. The first word ... | |
Not supported with pagination yet | Which bowl of cereal has more thermal energy? | [
"the colder bowl of cereal",
"the hotter bowl of cereal"
] | 1 | Two bowls of cereal are identical except for their temperatures. | closed choice | grade6 | natural science | physics | Thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two bowls of cereal are made of the same material and have the same mass. So, the hotter bowl of cereal has more thermal energy. |
Not supported with pagination yet | Compare the motion of two birds. Which bird was moving at a lower speed? | [
"a bird that moved 30kilometers in 5hours",
"a bird that moved 45kilometers in 5hours"
] | 0 | closed choice | grade2 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the kilometer.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about two objects... | Look at the distance each bird moved and the time it took to move that distance.
One bird moved 30 kilometers in 5 hours.
The other bird moved 45 kilometers in 5 hours.
Notice that each bird spent the same amount of time moving. The bird that moved 30 kilometers moved a shorter distance in that time. So, that bird must... | |
Not supported with pagination yet | Which type of sentence is this?
As Mike sat down on the rickety old chair, it abruptly collapsed beneath him. | [
"compound",
"simple",
"compound-complex",
"complex"
] | 3 | closed choice | grade12 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is complex. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction as.
As Mike sat down on the rickety old chair, it abruptly collapsed beneath him. | |
Not supported with pagination yet | Which correctly shows the title of a book? | [
"The Blue Cat of Castle Town",
"the Blue Cat of Castle Town"
] | 0 | closed choice | grade2 | language science | capitalization | Capitalization | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The word of is not important, so it should not be capitalized.
The correct title is The Blue Cat of Castle Town. | |
Identify the question that Gina's experiment can best answer. | [
"Can light bulbs stay lit longer when circuits include copper or when circuits include iron?",
"Do circuits that include iron produce dimmer light than circuits that include copper?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Gina built an electric circuit: she used wires to connect a battery to a light bulb, the light bulb to a small piece of copper, and the copper back to the battery. When the circuit was complete, the light turned on. Gin... | 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... | ||
What type of rock is quartzite? | [
"igneous",
"metamorphic",
"sedimentary"
] | 1 | This is a piece of quartzite. Quartzite forms when sandstone is changed by high temperature and pressure.
Quartzite is made mostly of the mineral quartz. It can also contain small amounts of other minerals. Depending on the minerals it contains, a piece of quartzite can be white, gray, pink, red, green, or blue. | closed choice | grade7 | natural science | earth-science | Rocks and minerals | Classify rocks as igneous, sedimentary, or metamorphic | Igneous rock is formed when melted rock cools and hardens into solid rock. This type of change can occur at Earth's surface or below it.
Sedimentary rock is formed when layers of sediment are pressed together, or compacted, to make rock. This type of change occurs below Earth's surface.
Metamorphic rock is formed when ... | Quartzite is a metamorphic rock. Like other metamorphic rocks, it forms when a rock is changed by high temperature and pressure.
Heat and pressure can change the type and arrangement of minerals in a rock. This change forms a new rock with different properties. Quartzite can form when sedimentary rocks such as sandston... | |
Identify the question that Owen's experiment can best answer. | [
"Do steel nails take fewer days to rust in water compared to vinegar?",
"Do steel nails rust in fewer days when submerged in a large volume of liquid compared to a small volume?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Owen put one two-inch steel nail into each of six test tubes. He added water to three of the test tubes and vinegar to the other three. In each test tube, he completely covered the nail with the same volume of liquid. O... | 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... | ||
What is the capital of Oregon? | [
"Portland",
"Salem",
"Carson City",
"Baltimore"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Salem is the capital of Oregon. | |||
Not supported with pagination yet | How long does it take for an airplane to cross the Atlantic Ocean? | [
"6 seconds",
"6 hours"
] | 1 | Select the better estimate. | closed choice | grade3 | natural science | units-and-measurement | Units and measurement | Choose units of time | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that the bus leaves in 7. You might be thinking, 7 what? Does the bus leave in 7 minutes? 7 seconds?
The number 7 on its own does not give you much information about when the... | The better estimate for how long it takes for an airplane to cross the Atlantic Ocean is 6 hours.
6 seconds is too fast. |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Grandma Emily,",
"dear Grandma Emily,"
] | 0 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first greeting is correct:
Its first word is capitalized, and it ends with a comma. Grandma Emily is capitalized because it is a proper noun. | |
Which type of force from the hiker's hand picks up the litter? | [
"push",
"pull"
] | 1 | A hiker uses her hand to clean up litter. Her hand applies a force to the litter and picks it up. | closed choice | grade3 | natural science | physics | Force and motion | Identify pushes and pulls | A force is a push or a pull that one object applies to a second object.
The direction of a push is away from the object that is pushing.
The direction of a pull is toward the object that is pulling. | The hiker's hand applies a force to the litter. This force picks the litter up off of the ground. The direction of this force is toward the hiker's hand. This force is a pull. | |
Which state is highlighted? | [
"Kentucky",
"South Carolina",
"Virginia",
"Georgia"
] | 1 | closed choice | grade5 | social science | geography | States | Identify states of the Southeast | This state is South Carolina. | |||
Not supported with pagination yet | Select the living thing. | [
"mango tree",
"brick wall"
] | 0 | closed choice | grade3 | natural science | biology | Classification | Identify living and nonliving things | All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. Living things use this energy to grow and change. All living things grow and change during their lives.
All living things sense changes in the world around them. Living things might sense ... | A brick wall is not a living thing.
Brick walls do not have all of the traits of living things. They do not grow or respond to the world around them. They do not need food or water.
A mango tree is a living thing.
Mango trees grow and respond to the world around them. They need food and water.
Mango trees are plants. T... | |
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"
] | 1 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade6 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | The particles in both samples have the same average speed, but each particle in sample B has more mass than each particle in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average kinetic energy, sample B mus... | |
What is the name of the colony shown? | [
"Wisconsin",
"Delaware",
"Rhode Island",
"Georgia"
] | 3 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Georgia. | |||
Not supported with pagination yet | Suppose Kaylee decides to go as a superhero. Which result would be a cost? | [
"Kaylee will save some time and money. She won't have to go out and get a new costume.",
"Kaylee will give up the chance to wear the costume she is more excited about."
] | 1 | Kaylee is deciding whether to go as a vampire or a superhero to a costume party. She would rather go as a vampire. But she already has a superhero costume. | closed choice | grade4 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Kaylee wants or needs:
Kaylee will give up the chance to wear the costume she is more excited about. |
Which of the following organisms is the omnivore in this food web? | [
"silver maple",
"beaver",
"gray fox",
"pine vole"
] | 3 | 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... | Omnivores are consumers that eat both producers and other consumers. So, an omnivore has arrows pointing to it from at least one producer and at least one consumer.
The pine vole has an arrow pointing to it from the persimmon tree, which is a producer. The pine vole also has an arrow pointing to it from the swallowtail... | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
Summer () this year; I'm not ready for it to be this hot! | [
"came early",
"sneaked up on me"
] | 1 | closed choice | grade10 | language science | writing-strategies | Creative techniques | Use personification | Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point.
The trees danced in the wind.
The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t... | Complete the sentence with the phrase sneaked up on me. It describes summer as if it were a sneaky person. | |
Which i in column 1? | [
"the police department",
"the pond",
"the school",
"the fire department"
] | 1 | closed choice | grade3 | social science | geography | Geography | Use a letter-number grid | A grid is made up of lines of squares. They are organized in rows and columns. A grid can help you use a map.
A row is a line of squares that goes from side to side. Rows are marked with letters.
A column is a line of squares that goes up and down. Columns are marked with numbers. | The pond is in column 1. | ||
Not supported with pagination yet | Complete the statement.
Hydrogen bromide is (). | [
"an elementary substance",
"a compound"
] | 1 | Hydrogen bromide can be used to speed up certain types of chemical reactions. The chemical formula for hydrogen bromide is HBr. | closed choice | grade8 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using chemical formulas | 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 ... | You can tell whether hydrogen bromide is an elementary substance or a compound by counting the number of atomic symbols in its chemical formula. An atomic symbol consists of either one capital letter or a capital letter followed by one or two lowercase letters.
The chemical formula for hydrogen bromide, HBr, contains t... |
Which animal's mouth is also adapted to get insects out of burrows? | [
"proboscis monkey",
"tamandua"
] | 1 | Long-beaked echidnas eat animals such as insects. These insects often live in holes called burrows. The echidna's mouth is adapted to get insects out of burrows.
Figure: long-beaked echidna. | 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 long-beaked echidna.
A tube-shaped snout helps the long-beaked echidna reach into a burrow. A long, sticky tongue helps it catch the insects.
Now look at each animal. Figure out which animal has a similar adaptation.
The tamandua has a tube-shaped snout and a long, sticky tongue. Its mouth is... | |
Based on the Venn diagram, which statement is true? | [
"Sea turtles have fins.",
"Sea turtles breathe air."
] | 1 | This Venn diagram shows information about some sea animals. | closed choice | grade5 | language science | writing-strategies | Visual elements | Read graphic organizers | A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another.
When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca... | In a Venn diagram, each circle shows things that are true for a particular topic. The middle, where the two circles overlap, shows things that are true for both topics. This Venn diagram shows information about some sea animals.
The breathes air circle includes sea turtle, as well as whale and otter. This tells you tha... | |
Not supported with pagination yet | Which phrase has a more positive connotation? | [
"searching for something",
"snooping for something"
] | 0 | closed choice | grade4 | language science | vocabulary | Shades of meaning | Positive and negative connotation | Connotation is the feeling or idea that goes along with a word or phrase. Some words are close in meaning but have different connotations.
For example, think about the words eager and impatient. They both mean wanting something to happen, but they have different connotations.
Eager has a positive connotation. It is a n... | Searching for something has a more positive connotation. Searching is looking for something carefully. Snooping is looking for something without permission. | |
Not supported with pagination yet | Using only these supplies, which question can Ann investigate with an experiment? | [
"When placed in the sun, will eight ounces of water in a closed jar or eight ounces of water in an open jar get warmer?",
"Will eight ounces of carbonated water or eight ounces of tap water get warmer when placed in a jar in the sun?",
"When placed in the sun, will eight ounces of water in a glass jar or eight ... | 0 | Ann leaves a glass jar of cold tea outside in full sunlight. When she goes to get it, she notices that the tea is warm. She wonders what factors affect how warm a liquid gets from sitting in the sunlight. So, she decides to design an experiment. She has the following supplies available:
two identical glass jars
two jar... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Jimi Hendrix, Janis Joplin, Jim Morrison, Kurt Cobain, and Amy Winehouse all passed away at the age of twenty-seven. For some reason, being twenty-seven seems to be dangerous for musicians. | [
"hasty generalization: a broad claim based on too few observations",
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences",
"appeal to nature: the assumption that natural things are always good"
] | 0 | closed choice | grade12 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that being twenty-seven makes musicians more likely to pass away. However, that's not necessarily true. These tragedies are likely a coincidence. This illustrates a type of logical fallacy known as a hasty generalization. | |
Is the following statement about our solar system true or false?
50% of the planets are made mainly of gas. | [
"true",
"false"
] | 1 | Use the data to answer the question below. | true-or false | grade7 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice. | The table tells you that two out of the eight planets are made mainly of gas. So, one-fourth, or 25%, of the planets are made mainly of gas. | |
Identify the question that Zane'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.
Zane 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. Zane then observed the... | 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... | ||
Which property do these three objects have in common? | [
"stretchy",
"blue",
"fuzzy"
] | 1 | Select the best answer. | closed choice | grade3 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A stretchy object gets longer when you pull on it. The track suit is stretchy, but the water slide and the sapphire are not.
Blue is a color.
This color is blue. All three objects are blue.
A fuzzy object is covered in soft hair. The water slide and ... | |
Is Rhizophora mangle made up of one cell? | [
"no",
"yes"
] | 0 | This organism is Rhizophora mangle. It is a member of the plant kingdom.
Rhizophora mangle is commonly called a red mangrove. Red mangrove trees grow in or near water. They have strong roots that help prop, or hold, them up. These roots are also aerial, which means that they can grow above the ground. So, the red mangr... | 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... | Rhizophora mangle is a plant. Plants are made up of many cells. | |
Not supported with pagination yet | Complete the sentence.
An iceberg melting slowly is a (). | [
"physical change",
"chemical change"
] | 0 | closed choice | grade3 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two common ways matter can change.
In a chemical change, the type of matter changes. The types of matter before and after a chemical change are always different.
Burning a piece of paper is a chemical change. When paper gets hot enough, it reacts with oxygen in the air and burn... | An iceberg melting is a change of state. So, it is a physical change. An iceberg is made of frozen water. As it melts, the water changes from a solid to a liquid. But a different type of matter is not formed. | |
Is cotton a mineral? | [
"no",
"yes"
] | 0 | Cotton has the following properties:
no fixed crystal structure
made by a cotton plant
not a pure substance
found in nature
solid | yes or no | grade5 | 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... | Cotton does not have all the properties of a mineral. So, cotton is not a mineral. | |
Not supported with pagination yet | Is a sandwich a good or a service? | [
"a good",
"a service"
] | 0 | closed choice | grade2 | social science | economics | Economics | Goods and services | Everything you can buy is either a good or a service.
A good is something you can touch or hold in your hands. For example, a hammer is a good.
A service is a job you pay someone else to do. For example, cooking food in a restaurant is a service. | To decide whether a sandwich is a good or a service, ask these questions:
Is a sandwich something you can touch? Yes.
Is a sandwich a job you might pay someone else to do? No.
So, a sandwich is a good. | |
Not supported with pagination yet | What does this Works Cited entry indicate about the cited work?
Davis, Lydia. Samuel Johnson is Indignant: Stories. Brooklyn: McSweeney's Books, 2001. Print. | [
"It is an article.",
"It is a short story.",
"It is a book."
] | 2 | closed choice | grade11 | language science | reference-skills | Research skills | Understand a Works Cited entry (MLA 7th edition) | When writing research papers, you will often be asked to follow a particular style guide for your citations. One popular style guide is the Modern Language Association (MLA) Handbook.
Below are the basic formats for some common types of Works Cited entries. Consult the MLA Handbook for a complete list.
Books:
Format | ... | Look closely at the Works Cited entry:
Davis, Lydia. Samuel Johnson is Indignant: Stories. Brooklyn: McSweeney's Books, 2001. Print.
You can tell that the cited work is a book because of the entry's formatting. Book entries always include the book title in italics followed by the place of publication, the publisher nam... | |
Not supported with pagination yet | Select the part whose main job is to sort and package proteins and other substances in an animal cell. | [
"chromosomes",
"Golgi",
"nucleus",
"vacuoles"
] | 1 | closed choice | grade8 | natural science | biology | Cells | Identify functions of animal cell parts | Animal cells are made up of many different parts. Each cell part has a function that helps the cell survive and grow.
Some cell parts are called organelles. Organelles are cell structures that are surrounded by their own membranes. Here are some of the organelles in animal cells:
Mitochondria help the cell get the ener... | The Golgi sorts and packages proteins and other substances for the cell. The Golgi sends some of these substances to parts of the cell where they are needed. It sends other substances to the cell membrane, where they are released from the cell. | |
Identify the question that Lamar's experiment can best answer. | [
"Can pennies hold more drops of pure water or water mixed with hand soap?",
"Can pennies hold more drops of water mixed with dish soap or water mixed with hand soap?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Lamar used a dropper to put equal-sized drops of pure water, one at a time, onto a penny. The drops stayed together and formed a dome on the penny's surface. Lamar recorded the number of drops he could add before the wa... | 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... | ||
Which property do these three objects have in common? | [
"stretchy",
"rough",
"sour"
] | 0 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A rough object feels scratchy when you touch it. The melted marshmallow and the spring are not rough.
A lemon has a sour taste. The melted marshmallow is not sour.
A stretchy object gets longer when you pull on it. All three objects are stretchy.
The... | |
Not supported with pagination yet | Which sentence states a fact? | [
"The United States Civil War began in 1861.",
"The United States Civil War was the saddest war."
] | 0 | closed choice | grade5 | social science | civics | Social studies skills | Identify facts and opinions | A fact is something that can be proved to be true. Facts can be proved by observing, measuring, or studying information.
The flag of the United States has 13 stripes.
This is a fact. It can be proved by looking at the flag and counting the number of stripes.
An opinion is something that a person believes, thinks, or fe... | The first sentence states a fact.
The United States Civil War began in 1861.
It can be proved by looking up the year that the United States Civil War started.
The second sentence states an opinion.
The United States Civil War was the saddest war.
Saddest shows what a person believes, thinks, or feels. Another person mi... | |
What is the capital of Rhode Island? | [
"Boston",
"Newport",
"Providence",
"Montpelier"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Providence is the capital of Rhode Island. | |||
Not supported with pagination yet | Which is a complete sentence? | [
"Abby spilled apple juice on the carpet.",
"The cardboard box gets wet, it falls apart."
] | 0 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A run-on sentence is made up of two sentences that are joined without end punctuation or with just a comma.
I knocked on the door it opened.
It started raining, we ran inside.
To fix a run-on ... | Abby spilled apple juice on the carpet is a complete sentence. The subject is Abby, and the verb is spilled. | |
Which of these states is farthest west? | [
"Maine",
"Texas",
"Rhode Island",
"Georgia"
] | 1 | closed choice | grade3 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. Texas is farthest west. | ||
What type of rock is dolerite? | [
"igneous",
"metamorphic",
"sedimentary"
] | 0 | Dolerite forms from melted rock. It can form when melted rock cools close to the earth's surface. It is made of minerals such as feldspar and pyroxene.
Dolerite is usually found in dikes. In geology, a dike is a gap in an old rock where a new rock can form. Sometimes, melted rock from below the earth's surface can leak... | closed choice | grade7 | natural science | earth-science | Rocks and minerals | Classify rocks as igneous, sedimentary, or metamorphic | Igneous rock is formed when melted rock cools and hardens into solid rock. This type of change can occur at Earth's surface or below it.
Sedimentary rock is formed when layers of sediment are pressed together, or compacted, to make rock. This type of change occurs below Earth's surface.
Metamorphic rock is formed when ... | Dolerite is an igneous rock. Like other igneous rocks, it forms when melted rock cools and hardens.
Melted rock below the earth's surface is called magma. Dolerite forms from silica-rich magma that is close to the earth's surface. As the magma cools, minerals such as feldspar and pyroxene begin to form. When the magma ... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 1."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade7 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | 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 1 than in Pair 2. So, the magnitude of the magnetic force is greater in Pair 1 than in Pair 2. | |
What is the capital of Hawaii? | [
"Baton Rouge",
"Phoenix",
"Honolulu",
"Hilo"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Honolulu is the capital of Hawaii. | |||
Not supported with pagination yet | Which phrase has a more negative connotation? | [
"slam the door",
"shut the door"
] | 0 | closed choice | grade4 | language science | vocabulary | Shades of meaning | Positive and negative connotation | Connotation is the feeling or idea that goes along with a word or phrase. Some words are close in meaning but have different connotations.
For example, think about the words eager and impatient. They both mean wanting something to happen, but they have different connotations.
Eager has a positive connotation. It is a n... | Slam the door has a more negative connotation. If you slam the door, you shut it in a loud and angry way. | |
Which animal is also adapted to be camouflaged in the snow? | [
"Arctic wolf",
"naked mole rat"
] | 0 | Polar bears live in and around the cold Arctic Ocean. The is adapted to be camouflaged in the snow.
Figure: polar bear. | 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 polar bear.
The polar bear has white fur covering its body. It is adapted to be camouflaged in the snow. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
This Arctic wolf has white fur covering its body. It is adapted to be camo... | |
What is the capital of Idaho? | [
"Helena",
"Nampa",
"Boise",
"Philadelphia"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Boise is the capital of Idaho. | |||
Not supported with pagination yet | What information supports the conclusion that Patty acquired this trait? | [
"Patty likes to visit sunflower fields.",
"Last summer, Patty's neighbor showed her how to grow sunflowers.",
"Both Patty and her father grow sunflowers."
] | 1 | Read the description of a trait.
Patty knows how to grow sunflowers. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | Which egg has a lower temperature? | [
"the egg with less thermal energy",
"the egg with more thermal energy"
] | 0 | Two eggs are identical except for their thermal energies. | closed choice | grade5 | natural science | physics | Heat and thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two eggs are made of the same material and have the same mass. So, the egg with less thermal energy has a lower temperature. |
Subsets and Splits
Validation Subject & Topic Summary
Reveals the distribution and count of images across different subjects, topics, and categories, highlighting the most prevalent combinations.
SQL Console for derek-thomas/ScienceQA
This query provides a balanced sample of entries across different topics where images are missing, allowing for a more representative analysis of text-only data.
SQL Console for derek-thomas/ScienceQA
This query provides a balanced sample of text entries across different topics, ensuring that each topic is proportionally represented, which is useful for further analysis or model training.
Random Sample by Topic Ratio
This query balances the dataset by randomly selecting a proportional number of items from each topic to create a balanced subset of 3000 items, revealing how well-represented each topic is in the dataset.
Topic Counts by Grade
Provides a breakdown of the number of questions by topic (physics, chemistry, biology, geography) for each grade level, revealing the distribution of question types.
Validation Category Counts
Counts the number of unique questions per category, helping to understand the distribution of questions across different categories.
SQL Console for derek-thomas/ScienceQA
Identifies categories, questions, and answers that appear more than four times in the validation dataset with images, highlighting common or repetitive entries.
ScienceQA Validation Grouped Data
Provides a count of images and overall occurrences for each combination of subject, topic, category, and answer, helping to identify popular or common configurations.
Train Data with Numeric Choices
This query identifies distinct rows in the dataset where one of the elements in the choices column contains a number and the image column is null, providing insight into data completeness and specific patterns in the choices.
Physics Train with Images and Lectures
Retrieves physics educational records with images and lectures for specific grade levels, providing basic filtering but offering limited analytical insight beyond data availability.
Physics Q&As with Images
Retrieves physics-related training examples with images for specific grade levels, providing basic filtered data but offering limited analytical insight beyond simple categorization.
Physics Questions Gr 2-6 With Images
Retrieves physics-related test items with images for specific grade levels, providing basic filtered data but offering limited analytical insights beyond simple data retrieval.
Filter Text-only Train Questions
Retrieves questions and related metadata from the dataset excluding those with images, offering basic data filtering.
Skills Without Images
Counts the number of skills where the image is missing, providing a basic overview of incomplete data.
Top 10 Hard Text Questions
Retrieves the top 10 longest questions without images, ordered by grade level in descending order, providing basic insight into potentially more complex questions.
SQL Console for derek-thomas/ScienceQA
Counts the occurrences of each category, question, and answer combination where an image is present, providing basic filtering on the dataset.
List ScienceQA Topics
Lists all unique topics in the dataset, which provides a basic overview of the categories present.
Cultural Questions Without Images
Retrieves 100 entries from the 'train' dataset where the image is missing and the topic is 'culture', providing basic filtering with limited analytical value.
Biology Skills for Grades 2 & 3
Lists unique skills and categories for biology topics in grades 2 and 3, providing basic filtering of the dataset.
Biology Qs for Grades 2 &
Retrieves all entries for grade 2 and grade 3 students focusing on the biology topic, providing a basic filtered view of the dataset.
Biology Grade 3 Questions Count
Counts the number of entries for grade 3 students in the biology topic, providing a basic count of data points.
Select Test Rows With Images
The query retrieves all records from the 'test' table where the 'image' column is not null, providing basic filtering without deep analytical value.
Test Images Query
This query retrieves a limited sample of rows where the image column is not null, providing basic filtering but minimal analytical value.
Test Data with Images
The query filters out rows where the image column is not null, providing a basic subset of the data but without much analytical insight.
Select Test Entries With Images
The query retrieves all records from the 'test' table where the 'image' column is not null, providing basic filtering but no deeper analytical insight.