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Which bird's beak is also adapted to crack large, hard nuts? | [
"spotted dove",
"military macaw"
] | 1 | Palm cockatoos eat large seeds and nuts. The shape of the 's beak is adapted to crack open large, hard nuts.
Figure: palm cockatoo. | closed choice | grade4 | 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 palm cockatoo.
The palm cockatoo has a thick hooked beak. Its beak is adapted to crack large, hard nuts. The palm cockatoo uses its thick beak to crack the shell of a nut by squeezing it. The hooked shape of the beak can help the bird hold the nut in place while cracking it.
Now look at each ... | |
Not supported with pagination yet | Based on this information, what is Fieval's phenotype for the fur color trait? | [
"brown fur",
"black fur"
] | 1 | In a group of rabbits, some individuals have black fur and others have brown fur. In this group, the gene for the fur color trait has two alleles. The allele for brown fur (f) is recessive to the allele for black fur (F).
Fieval is a rabbit from this group. Fieval has the heterozygous genotype Ff for the fur color gene... | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | You need to determine Fieval's phenotype for the fur color trait. First, consider the alleles in Fieval's genotype for the fur color gene. Then, decide whether these alleles are dominant or recessive.
The allele for brown fur (f) is recessive to the allele for black fur (F). This means F is a dominant allele, and f is ... |
Not supported with pagination yet | Which correctly shows the title of a book? | [
"Sarah, Plain and Tall",
"sarah, plain and Tall"
] | 0 | closed choice | grade4 | language science | capitalization | Formatting | 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 and is not important, so it should not be capitalized.
The correct title is Sarah, Plain and Tall. | |
Not supported with pagination yet | Which is a compound sentence? | [
"Rumors about Mayor Wagner were spreading like wildfire, so she set the record straight at a press conference.",
"At the auction, several paintings by famous artists were for sale, including one by Pablo Picasso."
] | 0 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction so.
Rumors about Mayor Wagner were spreading like wildfire, so she set the record straight at a press conference. | |
Not supported with pagination yet | Based on this information, what is Tweety's phenotype for the cheek color trait? | [
"pale orange cheeks",
"bright orange cheeks"
] | 1 | In a group of cockatiels, some individuals have bright orange cheeks and others have pale orange cheeks. In this group, the gene for the cheek color trait has two alleles. The allele for bright orange cheeks (R) is dominant over the allele for pale orange cheeks (r).
Tweety is a cockatiel from this group. Tweety has th... | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | You need to determine Tweety's phenotype for the cheek color trait. First, consider the alleles in Tweety's genotype for the cheek color gene. Then, decide whether these alleles are dominant or recessive.
The allele for bright orange cheeks (R) is dominant over the allele for pale orange cheeks (r). This means R is a d... |
Not supported with pagination yet | Which figure of speech is used in this text?
Dear Ella
Our Special First Lady of Song
You gave your best for so long
This is true.
—Dee Dee Bridgewater, "Dear Ella" | [
"oxymoron",
"apostrophe"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses apostrophe, a direct address to an absent person or a nonhuman entity.
Dear Ella is a direct address to Ella Fitzgerald, who died in 1996. | |
Not supported with pagination yet | Based on this information, what is Mabel's phenotype for the leg color trait? | [
"white legs",
"yellow legs"
] | 1 | In a group of chickens, some individuals have white legs and others have yellow legs. In this group, the gene for the leg color trait has two alleles. The allele for white legs (L) is dominant over the allele for yellow legs (l).
Mabel is a chicken from this group. Mabel has the homozygous genotype ll for the leg color... | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | Mabel's genotype for the leg color gene is ll. Mabel's genotype of ll has only l alleles. The l allele is for yellow legs. So, Mabel's phenotype for the leg color trait must be yellow legs.
To check this answer, consider whether Mabel's alleles are dominant or recessive. The allele for white legs (L) is dominant over t... |
Identify the question that Dale's experiment can best answer. | [
"Can pennies hold more drops of water mixed with dish soap or water mixed with hand soap?",
"Can pennies hold more drops of pure water or water mixed with hand soap?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Dale 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. Dale recorded the number of drops he could add before the wate... | 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... | ||
Not supported with pagination yet | Select the one substance that is not a mineral. | [
"Plagioclase is not made by living things. It is a solid.",
"Glue is made in a factory. It is not a pure substance.",
"Graphite is formed in nature. It is a pure substance."
] | 1 | closed choice | grade4 | natural science | earth-science | Rocks and minerals | Identify minerals using properties | 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... | Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals.
Graphite is a mineral.
Glue is not a pure substance. But all minerals are pure substances.
Glue is made in a factory. But all minerals are formed in nature.
So, glue is not a min... | |
Not supported with pagination yet | Which is a compound sentence? | [
"Those carpenters use wood to build stairways and doorframes.",
"We asked Andrew to join us, but we couldn't persuade him to go."
] | 1 | closed choice | grade4 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple or compound? | A simple sentence is a sentence with only one subject and predicate.
The pitcher threw the ball to first base.
A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so.
The pitcher threw the ball, and the batter hit it.
Some simple sentences have a compound subject or ... | The first sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction but.
We asked Andrew to join us, but we couldn't persuade him to go. | |
Which bird's beak is also adapted to filter through mud? | [
"mute swan",
"tawny owl"
] | 0 | Canada geese eat invertebrates and plants that live near water. The shape of the 's beak is adapted to filter through mud for food.
The gathers muddy water in its beak and then pushes it out through gaps along the sides. Bits of food, such as plant roots, are left behind inside the goose's beak.
Figure: Canada goose. | closed choice | grade4 | 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 Canada goose.
The Canada goose has a wide, flat beak. Its beak is adapted to filter through mud. The Canada goose gathers muddy water in its beak. Then, it pushes the water out through gaps along the sides of the beak. Bits of food, such as plant roots, are left behind inside the goose's beak... | |
Not supported with pagination yet | Using only these supplies, which question can Lily investigate with an experiment? | [
"Does a cell phone charge faster when plugged into a wall outlet or into a computer?",
"Does a tablet charge faster with a two-foot-long charging cable or a five-foot-long charging cable?",
"Does a cell phone charge more quickly when it is turned on or when it is turned off?"
] | 2 | Lily notices that her cell phone charges more quickly sometimes and more slowly other times. She wonders what factors affect how quickly a phone charges. So, she decides to design an experiment. She has the following supplies available:
one cell phone
a two-foot-long charging cable
a five-foot-long charging cable
a sto... | closed choice | grade8 | 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... | |
What is the capital of New Mexico? | [
"Louisville",
"Santa Fe",
"Salt Lake City",
"Albuquerque"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the West | Santa Fe is the capital of New Mexico. | |||
Not supported with pagination yet | Select the animal. | [
"Humans eat plants and animals.",
"Oak trees can have thick branches."
] | 0 | closed choice | grade2 | natural science | biology | Classification | Identify plants and animals | Plants and animals are living things. Living things are called organisms.
Plants come in many shapes and sizes. Most plants grow in the ground. They might grow leaves, flowers, and fruit. Plants cannot move around on their own like animals can.
Animals also come in many shapes and sizes. Most animals can move around. A... | A human is an animal! Humans eat plants and animals.
Humans are primates. Monkeys and apes are also primates.
An oak tree is a plant. It can have thick branches.
Acorns grow on oak trees. Acorns are small nuts with a seed inside. | |
Select the fish below. | [
"salmon",
"Mojave rattlesnake"
] | 0 | Fish live underwater. They have fins, not limbs. A tiger shark is an example of a fish. | closed choice | grade2 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A salmon is a fish. It lives underwater. It has fins, not limbs.
A Mojave rattlesnake is a reptile. It has scaly, waterproof skin. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Lester bought a program for the opera without realizing that it was in Russian.",
"Lester bought a program for the opera without realizing that the program was in Russian."
] | 0 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The second answer choice contains a vague pronoun reference. The pronoun it could refer to the program or the opera.
The first answer choice shows a possible correction for the vague pronoun reference. It has been replaced with the program.
Lester bought a program for the opera without realizing that the program was in... | |
Not supported with pagination yet | Select the plant. | [
"Orchids can grow flowers.",
"Sea otters eat animals that live in the ocean."
] | 0 | closed choice | grade2 | natural science | biology | Classification | Identify plants and animals | Plants and animals are living things. Living things are called organisms.
Plants come in many shapes and sizes. Most plants grow in the ground. They might grow leaves, flowers, and fruit. Plants cannot move around on their own like animals can.
Animals also come in many shapes and sizes. Most animals can move around. A... | A sea otter is an animal. It eats animals that live in the ocean.
Sea otters have very thick fur. Their fur keeps them warm in cold water.
An orchid is a plant. It can grow flowers.
Many orchids grow in warm, wet places. | |
Not supported with pagination yet | Which correctly shows the title of a short story? | [
"\"Hansel and Gretel\"",
"Hansel and Gretel"
] | 0 | closed choice | grade8 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, article, or short story should be in quotation marks.
"You Are My Sunshine" | A short story should be in quotation marks.
The correct title is "Hansel and Gretel." | |
Not supported with pagination yet | How long is a soccer field? | [
"380 yards",
"380 inches",
"380 feet",
"380 miles"
] | 2 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose customary units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | The best estimate for the length of a soccer field is 380 feet.
380 inches is too short. 380 yards and 380 miles are too long. |
What is the capital of Colorado? | [
"Denver",
"Billings",
"Santa Fe",
"Colorado Springs"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Which of these states is farthest south? | [
"Connecticut",
"Vermont",
"New Jersey",
"Maine"
] | 2 | closed choice | grade5 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the south arrow is pointing. New Jersey is farthest south. | ||
Which of the following could Nate's test show? | [
"if at least 20% of the park would be shaded by trees in each design",
"which design would have the least traffic noise in the concert area",
"which design would have the greatest distance between the concert area and the road"
] | 2 | 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... | ||
Which animal's limbs are also adapted for climbing trees? | [
"three-toed sloth",
"eastern gray kangaroo"
] | 0 | Lar gibbons live in the forests of Southeast Asia. Their limbs are adapted for climbing trees.
Figure: lar gibbon. | closed choice | grade4 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
Arms, legs, flippers, and wings are different types of limbs. The type of limbs an animal has is an example of an adaptation. Animals' limbs can be adapted in different ways. For examp... | Look at the picture of the lar gibbon.
The lar gibbon uses its long limbs to reach branches while climbing. It uses its fingers and toes to grab the branches.
Now look at each animal. Figure out which animal has a similar adaptation.
The three-toed sloth has long limbs with fingers and toes. Its limbs are adapted for c... | |
Not supported with pagination yet | Which object has the least thermal energy? | [
"a fish tank at a temperature of 23°C",
"a fish tank at a temperature of 20°C",
"a fish tank at a temperature of 19°C"
] | 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 slow down, the temperature goes down. The matter now has both ... | All three fish tanks have the same mass but different temperatures. Since the 19°C fish tank is the coldest, it has the least thermal energy. |
Not supported with pagination yet | Which figure of speech is used in this text?
Zoe's Boutique claims to have "something for everyone," but it is generally understood that their target market is women of a certain age. | [
"euphemism",
"paradox"
] | 0 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Of a certain age is an indirect and generally more polite way of referring to older people. | |
Not supported with pagination yet | How long is a soccer field? | [
"385 inches",
"385 feet"
] | 1 | Select the better estimate. | closed choice | grade2 | natural science | units-and-measurement | Units and measurement | Choose customary units of distance | 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 a pencil is 8 long. You might be thinking, 8 what? Is the pencil 8 inches long? 8 feet? 8 miles?
The number 8 on its own does not give you much information about the len... | The better estimate for the length of a soccer field is 385 feet.
385 inches is too short. |
Identify the question that Larry'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.
Larry 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. Larry 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... | ||
Is molasses a solid, a liquid, or a gas? | [
"a solid",
"a gas",
"a liquid"
] | 2 | closed choice | grade4 | natural science | physics | States of matter | Identify and sort solids, liquids, and gases | 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... | Molasses is a liquid. A liquid takes the shape of any container it is in.
If you pour molasses into a container, the molasses will take the shape of that container. But the molasses will still take up the same amount of space. | ||
Not supported with pagination yet | Which figure of speech is used in this text?
Dr. Chapman is unhappy with her new assistant because simple tasks, like fetching coffee, take him years to finish. | [
"hyperbole",
"oxymoron"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses hyperbole, an obvious exaggeration that is not meant to be taken literally.
Take him years to finish is an exaggeration, since it probably does not take him entire years to fetch coffee. | |
Which of these states is farthest north? | [
"Louisiana",
"Alabama",
"New Mexico",
"Nevada"
] | 3 | closed choice | grade3 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the north arrow is pointing. Nevada is farthest north. | ||
Which country is highlighted? | [
"Dominica",
"Haiti",
"Barbados",
"the Dominican Republic"
] | 3 | closed choice | grade7 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is the Dominican Republic.
Why does the Dominican Republic share its island with another country?
The Dominican Republic and Haiti share the island of Hispaniola. It is home to the earliest European settlements in the Americas. Christopher Columbus founded the first European settlement on the island in 149... | |||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is weaker in Pair 2.",
"The magnetic force is weaker in Pair 1.",
"The strength of the magnetic force is the same in both pairs."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are 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. | |
Not supported with pagination yet | Which figure of speech is used in this text?
Ezra and Florence have trouble working on projects together. Although Florence is very sociable and friendly, she's not exactly a team player. | [
"euphemism",
"oxymoron"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Not exactly a team player is an indirect way of saying that someone doesn't work well with others. | |
Not supported with pagination yet | Select the animal. | [
"Giraffes eat plants.",
"Chili peppers have green leaves."
] | 0 | closed choice | grade2 | natural science | biology | Classification | Identify plants and animals | Plants and animals are living things. Living things are called organisms.
Plants come in many shapes and sizes. Most plants grow in the ground. They might grow leaves, flowers, and fruit. Plants cannot move around on their own like animals can.
Animals also come in many shapes and sizes. Most animals can move around. A... | A giraffe is an animal. It eats plants.
Giraffes have very long necks! They mostly eat leaves that are too high up for other animals to reach.
A chili pepper is a plant. It has many green leaves.
Chili peppers give food a spicy flavor. | |
Based on the Venn diagram, which poem is about a Trojan hero? | [
"the Odyssey",
"the Aeneid"
] | 1 | This Venn diagram shows information about two ancient poems. | closed choice | grade6 | language science | writing-strategies | Visual elements | Read graphic organizers | A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another.
When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca... | In a Venn diagram, each circle shows information that is true for a particular topic. In any area where circles overlap, the information is true for all of the overlapping topics. This Venn diagram shows information about two ancient poems.
The detail about the Trojan hero Aeneas appears in the circle for the Aeneid bu... | |
Which of the following organisms is the primary consumer in this food web? | [
"parasitic jaeger",
"lichen",
"grizzly bear"
] | 2 | Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade6 | natural science | biology | Ecological interactions | Interpret food webs I | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Primary consumers eat producers. So, in a food web, primary consumers have arrows pointing to them from producers.
The brown lemming has arrows pointing to it from the bilberry and the bear sedge. The bilberry and the bear sedge are producers, so the brown lemming is a primary consumer.
The lichen does not have any arr... | |
Not supported with pagination yet | Complete the sentence.
A crayon melting in the sun is a (). | [
"chemical change",
"physical change"
] | 1 | closed choice | grade5 | natural science | chemistry | Physical and chemical change | 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 new molecules. The types of molecules in matter before an... | A crayon melting in the sun is a change of state. So, it is a physical change. The crayon changes state from solid to liquid. The crayon is still made of wax, even after it melts. | |
Not supported with pagination yet | What information supports the conclusion that Julian inherited this trait? | [
"Julian has freckles on his nose and shoulders.",
"Julian's biological parents have freckles on their noses just as Julian does.",
"Julian and his biological mother have pale skin."
] | 1 | Read the description of a trait.
Julian has freckles. | closed choice | grade7 | 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 | Select the vertebrate. | [
"golden orb-weaver",
"trapdoor spider",
"Pacific octopus",
"echidna"
] | 3 | Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | closed choice | grade5 | natural science | biology | Classification | Identify vertebrates and invertebrates | Vertebrates and invertebrates are both groups of animals.
A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange.
An invertebrate does not have a backb... | Like other spiders, a golden orb-weaver is an invertebrate. It does not have a backbone. It has an exoskeleton.
Like other spiders, a trapdoor spider is an invertebrate. It does not have a backbone. It has an exoskeleton.
An echidna is a mammal. Like other mammals, an echidna is a vertebrate. It has a backbone.
Like ot... |
Select the reptile below. | [
"green tree frog",
"human",
"salmon",
"green iguana"
] | 3 | Reptiles have scaly, waterproof skin. Most reptiles live on land.
Reptiles are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A western rattlesnake is an example of a reptile. | closed choice | grade4 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals. | A salmon is a fish. It lives underwater. It has fins, not limbs.
Unlike most other fish, salmon can live in both fresh water and salt water.
A green iguana is a reptile. It has scaly, waterproof skin.
Iguanas are a type of lizard. Iguanas eat plants and fruit.
A human is a mammal. It has hair and feeds its young milk.
... | |
Not supported with pagination yet | Complete the sentence.
Firing a clay pot in a hot kiln is a (). | [
"chemical change",
"physical change"
] | 0 | closed choice | grade5 | natural science | chemistry | Physical and chemical change | 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 new molecules. The types of molecules in matter before an... | Firing a clay pot in a hot kiln is a chemical change. High temperatures cause the clay to slowly harden. After several hours in the kiln, the clay will have changed into a different type of matter. | |
Which solution has a higher concentration of green particles? | [
"neither; their concentrations are the same",
"Solution B",
"Solution A"
] | 1 | The diagram below is a model of two solutions. Each green ball represents one particle of solute. | closed choice | grade8 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the green particles represent the solute. To figure out which solution has a higher concentration of green particles, look at both the number of green particles and the volume of the solvent in each container.
Use the concentration formula to find the number of green particles per millilit... | |
Not supported with pagination yet | Complete the statement. Assume that the sled's mass did not change.
The gravitational potential energy stored between the sled and Earth () as Sidney rode down the hill. | [
"decreased",
"increased",
"stayed the same"
] | 0 | Read the text about an object in motion.
On a snowy day, Sidney rode her sled down a big hill. | closed choice | grade7 | natural science | physics | Kinetic and potential energy | Identify changes in gravitational potential energy | Gravitational potential energy is stored between any two objects. So, for every object on or near Earth, there is gravitational potential energy stored between the object and Earth.
The amount of gravitational potential energy stored between an object and Earth depends on the mass of the object. The amount of gravitati... | Think about how the distance between the sled and the center of Earth changed.
The bottom of the hill was lower than the point where Sidney started sledding. As Sidney rode toward the bottom of the hill, the distance between the sled and the center of Earth decreased. So, the gravitational potential energy stored betwe... |
Not supported with pagination yet | Which sentence is more formal? | [
"Garza Electronics has a reputation for responding real quick to customer concerns and questions.",
"Garza Electronics has a reputation for responding quickly to all customer concerns and questions."
] | 1 | closed choice | grade5 | language science | writing-strategies | Author's purpose and tone | Which sentence is more formal? | Formal writing is used for essays, business letters, and reports. The following types of informal language should be avoided in formal writing:
Type | Examples
slang | cool, awesome
idioms | knock your socks off
conversational language | gonna, kinda, yeah
abbreviated language | ASAP, FYI
overly simple or imprecise lan... | The second sentence is less formal. You can tell because it uses conversational language (real quick).
The first sentence uses formal language in place of the conversational language, so it is more formal overall. | |
Not supported with pagination yet | Which correctly shows the title of a newspaper? | [
"\"The Red and Black\"",
"***The Red and Black***"
] | 1 | closed choice | grade3 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, or article should be in quotation marks.
"You Are My Sunshine" | A newspaper should be in italics.
The correct title is **The Red and Black**. | |
Not supported with pagination yet | Which object has less thermal energy? | [
"a bowl of cereal at a temperature of 20°C",
"a bowl of cereal at a temperature of 15°C"
] | 1 | The objects are identical except for their temperatures. | closed choice | grade3 | 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 slow down, the temperature goes down. The matter now has both ... | The two bowls of cereal have the same mass but different temperatures. Since the 15°C bowl of cereal is colder than the 20°C bowl of cereal, it has less thermal energy. |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Where Audrey lives, winter is the rainiest season of the year. | [
"climate",
"weather"
] | 0 | 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 | grade4 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | 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 text carefully.
Where Audrey lives, winter is the rainiest season of the year.
This passage tells you about the usual precipitation where Audrey lives. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Not supported with pagination yet | Based on this information, what is Booster's phenotype for the horns trait? | [
"having horns",
"not having horns"
] | 0 | In a group of cows, some individuals have horns and others do not. In this group, the gene for the horns trait has two alleles. The allele for having horns (h) is recessive to the allele for not having horns (H).
Booster is a cow from this group. Booster has the homozygous genotype hh for the horns gene. | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | Booster's genotype for the horns gene is hh. Booster's genotype of hh has only h alleles. The h allele is for having horns. So, Booster's phenotype for the horns trait must be having horns.
To check this answer, consider whether Booster's alleles are dominant or recessive. The allele for having horns (h) is recessive t... |
Not supported with pagination yet | Using only these supplies, which question can Betty investigate with an experiment? | [
"Does a catapult with a longer arm launch a rubber ball farther than a catapult with a shorter arm?",
"Does a rubber ball travel farther when launched from a metal catapult or from a wooden catapult?",
"Does a heavier ball travel farther than a lighter ball when launched from a catapult?"
] | 0 | Betty visits a museum about ancient Greece. She notices an exhibit with models of wooden catapults that were used to launch large rocks across battlefields. She wonders what factors affect how far a catapult can launch an object. So, she decides to design an experiment. She has the following supplies available:
a woode... | 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... | |
Which continent is highlighted? | [
"Antarctica",
"Africa",
"Australia",
"North America"
] | 3 | 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 North America. | ||
Not supported with pagination yet | Is the following trait inherited or acquired?
Raymond plays baseball. | [
"inherited",
"acquired"
] | 1 | Hint: Playing baseball takes practice. | 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... | People are not born knowing how to play baseball. Instead, some people learn how to play baseball. Playing the sport takes practice. So, playing baseball is an acquired trait. |
What is the capital of Hawaii? | [
"Hilo",
"Denver",
"Salem",
"Honolulu"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Honolulu is the capital of Hawaii. | |||
Not supported with pagination yet | Which tense does the sentence use?
Akiko teaches Rosanne about customs in Japan. | [
"past tense",
"future tense",
"present tense"
] | 2 | closed choice | grade5 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in present tense. You can tell because it uses a present-tense verb, teaches. The verb ends in -es and tells you about something that is true or happening now. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is greater in Pair 2."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes. | closed choice | grade5 | natural science | physics | Magnets | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The larger the magnets, the greater the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is larger in Pair 2 than in Pair 1. So, the magnitud... | |
Which animal's limbs are also adapted for swimming? | [
"giraffe",
"humpback whale"
] | 1 | Northern elephant seals live along the coast of the Pacific Ocean. They spend a lot of time hunting fish at sea.
The has four flippers for limbs. Its limbs are adapted for swimming.
Figure: northern elephant seal. | 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 northern elephant seal.
The northern elephant seal uses its flippers to 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 humpback whale has flippers. Its limbs are adapted f... | |
Not supported with pagination yet | Which sentence states a fact? | [
"The mummy of King Tut was discovered in 1922.",
"King Tut was a weak and unimportant ruler."
] | 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 mummy of King Tut was discovered in 1922.
It can be proved by reading a book or an article about King Tut.
The second sentence states an opinion.
King Tut was a weak and unimportant ruler.
Weak and unimportant shows what a person believes, thinks, or feels. Another person might hav... | |
Not supported with pagination yet | What information supports the conclusion that Chad inherited this trait? | [
"Chad's parents were born with straight hair. They passed down this trait to Chad.",
"Chad and his father both have short hair."
] | 0 | Read the description of a trait.
Chad 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.... | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
"I can't believe I tripped," Nicholas remarked. "The curb must have ()". | [
"jumped out in front of me",
"been higher than I thought"
] | 0 | closed choice | grade8 | 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 jumped out in front of me. It describes the curb as if it were a mischievous, unpredictable person. | |
Identify the question that Manny's experiment can best answer. | [
"Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?",
"Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Manny divided 40 evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, Manny op... | 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 is the source of the allusion in the sentence below?
Oliver dropped out of college to travel the world, but a year later, the prodigal son returned home and re-enrolled. | [
"British history",
"the Bible"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
The protean nature of the disease makes it difficult to diagnose.
The word protean is an allusion to the sea god Proteus in Gree... | The source of the allusion prodigal son is the Bible.
In a Biblical parable, the prodigal son irresponsibly spends the inheritance given to him by his father. When he returns home, he expects to be shamed, but his father forgives him.
The allusion prodigal son means a person who behaves recklessly but later makes a rep... | |
Not supported with pagination yet | Which sentence is more formal? | [
"The sale, which begins Saturday, will have markdowns on stuff for winter.",
"The sale, which begins Saturday, will feature markdowns on winter jackets, sweaters, and boots."
] | 1 | closed choice | grade5 | language science | writing-strategies | Author's purpose and tone | Which sentence is more formal? | Formal writing is used for essays, business letters, and reports. The following types of informal language should be avoided in formal writing:
Type | Examples
slang | cool, awesome
idioms | knock your socks off
conversational language | gonna, kinda, yeah
abbreviated language | ASAP, FYI
overly simple or imprecise lan... | The second sentence is less formal. You can tell because it uses overly simple or imprecise language (have, stuff).
The first sentence uses more precise language, so it is more formal overall. | |
Not supported with pagination yet | Would you find the word mooring on a dictionary page with the following guide words?
meter - mind | [
"yes",
"no"
] | 1 | yes or no | 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 mooring is not between the guide words meter - mind, it would not be found on that page. | |
Which property do these three objects have in common? | [
"slippery",
"blue",
"stretchy"
] | 2 | Select the best answer. | closed choice | grade3 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A stretchy object gets longer when you pull on it. All three objects are stretchy.
Blue is a color.
This color is blue. None of the objects are blue.
A slippery object is hard to hold onto or stand on. None of the objects are slippery.
The property t... | |
Not supported with pagination yet | Would you find the word shoulder on a dictionary page with the following guide words?
somehow - spill | [
"no",
"yes"
] | 0 | yes or no | grade4 | 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 shoulder is not between the guide words somehow - spill, it would not be found on that page. | |
Which solution has a higher concentration of green particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 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... | |
What is the name of the colony shown? | [
"Ohio",
"Kentucky",
"West Virginia",
"Connecticut"
] | 3 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Connecticut. | |||
Which continent is highlighted? | [
"Africa",
"North America",
"South America",
"Europe"
] | 1 | closed choice | grade6 | 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 North America. | ||
What is the name of the colony shown? | [
"New York",
"Maryland",
"Tennessee",
"New Jersey"
] | 3 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New Jersey. | |||
Which continent is highlighted? | [
"Antarctica",
"North America",
"Australia",
"Africa"
] | 2 | closed choice | grade5 | social science | geography | Oceans and continents | Identify oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is Australia. | ||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | 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,... | The magnets in Pair 1 attract. The magnets in Pair 2 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magni... | |
Select the mammal below. | [
"poison dart frog",
"rabbit"
] | 1 | Mammals have hair or fur and feed their young milk. A gorilla 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 poison dart frog is an amphibian. It has moist skin and begins its life in water.
Poison dart frogs come in many bright colors. Their bright color warns other animals that these frogs are poisonous.
A rabbit is a mammal. It has fur and feeds its young milk.
Rabbits live underground in burrows. A group of rabbit burro... | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is weaker in Pair 2.",
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 1."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | 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. | |
What is the capital of Kentucky? | [
"Louisville",
"Columbia",
"Frankfort",
"Richmond"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Frankfort is the capital of Kentucky. | |||
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her academic voice?
Cloning has come a long way since a sheep named Dolly was successfully cloned in 1996. Now it is becoming possible to use cloning for a variety of purposes. For example, cloning technology could be used to grow s... | [
"by avoiding subjective statements",
"by avoiding first-person pronouns",
"by including technical terms"
] | 0 | closed choice | grade11 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | During peer review, you read and respond to a fellow student's writing. While there are many methods and strategies that you can use for reviewing a text, it is generally helpful to frame your suggestions in concrete and constructive ways and to consider the following areas for revision:
Ideas and development: Does the... | The writer could best improve his or her academic voice by avoiding subjective statements.
For example, the writer could cut the underlined text to maintain an objective discussion of human cloning.
Cloning has come a long way since a sheep named Dolly was successfully cloned in 1996. Now it is becoming possible to use... | |
Not supported with pagination yet | How long is a diving board? | [
"8 yards",
"8 inches",
"8 miles",
"8 feet"
] | 3 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose customary units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | The best estimate for the length of a diving board is 8 feet.
8 inches is too short. 8 yards and 8 miles are too long. |
Not supported with pagination yet | Which word is not like the others? | [
"many",
"several",
"count",
"some"
] | 2 | closed choice | grade2 | language science | vocabulary | Categories | Which word is not like the others? | Some words are alike. They go together in a group.
Red, blue, and green go together. They are colors.
Mom, dad, grandma, and grandpa go together. They are people in a family. | Some, many, and several go together. They are words for more than one. Count is not a word for more than one, so it is not like the other words. | |
Which bird's beak is also adapted to catch fish? | [
"northern cardinal",
"great blue heron"
] | 1 | s live near wetlands, marshes, and lakes. They eat mostly fish. The shape of the 's beak is adapted to catch fish.
Figure: Amazon kingfisher. | 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 Amazon kingfisher.
The Amazon kingfisher has a long, straight beak with a sharp tip. Its beak is adapted to catch fish. The Amazon kingfisher can use its beak to grab the slippery body of a fish underwater. It can also catch a fish by stabbing it with its beak.
Now look at each bird. Figure o... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
You should pay a visit to Great-Aunt Gertrude, the Solomon of our family. | [
"the Bible",
"Greek history"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion Solomon is the Bible.
In the Bible, Solomon, a king of Israel, is an extremely wise person whom many regard as a prophet.
The allusion Solomon means a person who gives good advice. | |
Identify the question that Maureen's experiment can best answer. | [
"Does the humidity level where tomato seeds are planted affect the number of tomato seedlings that grow?",
"Do more tomato seedlings grow when they are planted in soil with fertilizer compared to soil without fertilizer?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Maureen planted 25 tomato seeds one-half inch below the soil surface in each of six pots. Maureen added an equal amount of fertilizer to three of the six pots. She placed the pots in a plant growth chamber where all 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 two objects have in common? | [
"soft",
"blue"
] | 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. Neither of the objects are blue.
A soft object changes shape when you squeeze it. Both objects are soft.
The property that both objects have in common is soft. | |
Not supported with pagination yet | Which is a complex sentence? | [
"Before Janice boiled water for the spaghetti, she made a sauce with onions, garlic, and tomatoes.",
"On a clear, peaceful morning at Rincon Point, Sally paddled out into the surf."
] | 0 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the complex sentence. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction before.
Before Janice boiled water for the spaghetti, she made a sauce with onions, garlic, and tomatoes. | |
Which continent is highlighted? | [
"Antarctica",
"Asia",
"North America",
"Africa"
] | 3 | closed choice | grade5 | social science | geography | Oceans and continents | Identify oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is Africa. | ||
Not supported with pagination yet | Which logical fallacy is used in the text?
How could Janelle have anything insightful to say about foreign affairs? She grew up on a farm. | [
"ad hominem: an attack against the person making the argument, rather than the argument itself",
"appeal to nature: the assumption that natural things are always good",
"slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences"
] | 0 | closed choice | grade10 | 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 Janelle cannot be insightful about foreign affairs because she grew up on a farm. This is a personal attack that isn't relevant to whether she knows about foreign affairs. This illustrates a type of logical fallacy known as ad hominem. | |
Not supported with pagination yet | Would you find the word at on a dictionary page with the following guide words?
architect - astound | [
"no",
"yes"
] | 0 | yes or no | grade4 | 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 at is not between the guide words architect - astound, it would not be found on that page. | |
Not supported with pagination yet | Which figure of speech is used in this text?
The Somerville Grill offers a delicious vegetarian sausage entr̩e served with mashed sweet potatoes and arugula salad. | [
"oxymoron",
"hyperbole"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses an oxymoron, a joining of two seemingly contradictory terms.
Vegetarian sausage is a contradiction, because vegetarian food has no meat, and sausages are made with meat. | |
What is the name of the colony shown? | [
"North Carolina",
"Illinois",
"Pennsylvania",
"Indiana"
] | 0 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is North Carolina. | |||
Which month is the hottest on average in Cape Town? | [
"June, July, and August",
"April, May, and November",
"December, January, February, and March"
] | 2 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Temperature is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average temperature for each month. The average temperature can be used to describe the climate of a location.
A line graph can be used t... | To describe the average temperature trends in Cape Town, 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 "Jul" is incorrect.
Choice "Aug" is incorrect.
Choice "Nov" is incorrect.
Choice "Dec" is incorrect.
C... | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
"I can't believe I tripped," Tanner remarked. "The curb must have ()". | [
"jumped out in front of me",
"been higher than I thought"
] | 0 | 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 jumped out in front of me. It describes the curb as if it were a mischievous, unpredictable person. | |
Not supported with pagination yet | Select the liquid. | [
"garbage can",
"water in a bathtub",
"gold bracelet"
] | 1 | closed choice | grade2 | natural science | physics | States of matter | Identify solids and liquids | Solid and liquid are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a shape of its own.
Some solids can be bent or broken easily. Others are hard to bend or break.
A glass cup is a solid. A sock is also a solid.
When matter is a li... | ||
Not supported with pagination yet | Would you find the word sit on a dictionary page with the following guide words?
shimmer - splinter | [
"no",
"yes"
] | 1 | yes or no | 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 sit is between the guide words shimmer - splinter, it would be found on that page. | |
Which of these cities is marked on the map? | [
"Denver",
"Portland",
"Los Angeles",
"San Francisco"
] | 2 | closed choice | grade5 | social science | geography | Cities | Cities of the West | The city is Los Angeles, California. Denver, Portland, and San Francisco are marked with gray circles on the map below. | |||
Not supported with pagination yet | Select the action that doesn't belong. | [
"chop",
"carve",
"slice",
"measure"
] | 3 | closed choice | grade3 | language science | vocabulary | Categories | Select the words that don't belong | Measure doesn't belong.
Carve, chop, and slice all name ways to cut something. | ||
Not supported with pagination yet | Based on this information, what is Remy's phenotype for the body size trait? | [
"a dwarf body",
"bb"
] | 0 | In a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele B is for a normal-sized body, and the allele b is for a dwarf body.
Remy, a rat from this group, has a dwarf body. Remy has two alleles for a dwarf body... | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's phenotype for a trait is its observable version of that trait. Remy's observable version of the body size trait is a dwarf body. So, Remy's phenotype for the body size trait is a dwarf body. |
Not supported with pagination yet | Which logical fallacy is used in the text?
This overview of world history is the number one seller on the topic. It must be the most accurate and comprehensive book on the subject. | [
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"false dichotomy: an argument that presents only two choices when more options exist",
"false causation: the assumption that because two things happened together, one caused the other"
] | 0 | closed choice | grade11 | 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 a best-selling book is the most accurate and comprehensive on its topic. However, this isn't necessarily true. There are other reasons a book could be a best seller besides its accuracy and thoroughness. This illustrates a type of logical fallacy known as the bandwagon fallacy. | |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | 2 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade8 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | Each particle in sample A has more mass than each particle in sample B. The particles in sample A also have a higher average speed than the particles in sample B. So, the particles in sample A have a higher average kinetic energy than the particles in sample B.
Because the particles in sample A have the higher average ... | |
Not supported with pagination yet | How long is a basketball court? | [
"26 centimeters",
"26 meters",
"26 kilometers",
"26 millimeters"
] | 1 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of a basketball court is 26 meters.
26 millimeters and 26 centimeters are too short. 26 kilometers is too long. |
What is the name of the colony shown? | [
"South Carolina",
"West Virginia",
"Virginia",
"Pennsylvania"
] | 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. | |||
Not supported with pagination yet | Is the following trait inherited or acquired?
Elena has five toes on each foot. | [
"acquired",
"inherited"
] | 1 | closed choice | grade5 | 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... | Most humans are born with five toes on each foot. So, having five toes is an inherited trait. | |
Which of the following could Ellie's test show? | [
"if the blade guards would break in a crash",
"if adding the blade guards made the drone fly poorly",
"how much the drone weighed with the blade guards"
] | 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... | ||
Which country is highlighted? | [
"Nauru",
"Tonga",
"Fiji",
"Vanuatu"
] | 3 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Vanuatu.
Does Vanuatu have any territorial disputes?
Vanuatu claims to own Matthew and Hunter Islands, which are disputed islands. In other words, multiple countries or groups claim that the islands rightfully belong to them.
France has controlled the islands since 1929. But shortly after gaining indepe... |
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.