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Not supported with pagination yet | Which is a run-on sentence? | [
"The child chews her food carefully.",
"We wanted a snack, we ate some cherries."
] | 1 | 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 ... | We wanted a snack, we ate some cherries is a run-on sentence. It has two sentences that are joined by just a comma: We wanted a snack and We ate some cherries. | |
Not supported with pagination yet | Suppose Grayson decides to make tomato soup. Which result would be a cost? | [
"Grayson will save some time. The egg drop soup would have taken longer to make than the tomato soup.",
"Grayson will give up the chance to eat the egg drop soup, which would have been tastier than the tomato soup."
] | 1 | Grayson is deciding whether to make egg drop soup or tomato soup for dinner. He wants dinner to be as tasty as possible. But he is also hungry and wants to eat soon. | closed choice | grade5 | 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 Grayson wants or needs:
Grayson will give up the chance to eat the egg drop soup, which would have been tastier than the tomato soup. |
Which of the following could Stacy's test show? | [
"how much the drone weighed with the blade guards",
"if adding the blade guards made the drone fly poorly",
"if the blade guards would break in a crash"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade8 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Which animal's neck is also adapted for hunting prey while keeping the rest of its body still? | [
"great egret",
"black-browed albatross"
] | 0 | Saddle-billed storks live near wetlands and lakes. They eat mostly fish.
The 's neck helps it grab fish while keeping the rest of its body still. If the stork had to move its body, it might scare the fish away.
Figure: saddle-billed stork. | 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 neck is one example of an adaptation. Animals' necks can be adapted in different ways. For example, a large frilled neck might help an animal appear dangerous ... | Look at the picture of the saddle-billed stork.
The saddle-billed stork has a long neck. Its neck is adapted for hunting prey while keeping the rest of its body still. This allows the saddle-billed stork to grab the prey without scaring it away.
Now look at each animal. Figure out which animal has a similar adaptation.... | |
Not supported with pagination yet | Select the reptile. | [
"cane toad",
"ocean sunfish",
"western gorilla",
"cobra"
] | 3 | closed choice | grade5 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Reptiles have scaly, waterproof skin. Most reptiles live on land. | A western gorilla is a mammal. It has fur and feeds its young milk.
Gorillas live in groups called troops. The largest male in the troop is usually the leader.
An ocean sunfish is a fish. It lives underwater. It has fins, not limbs.
Ocean sunfish have a flat body and wide fins. They sometimes swim to the ocean's surfac... | |
Not supported with pagination yet | Would you find the word lower on a dictionary page with the following guide words?
length - lid | [
"no",
"yes"
] | 0 | yes or no | grade2 | 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 lower is not between the guide words length - lid, it would not be found on that page. | |
Not supported with pagination yet | What kind of sentence is this?
Bonnie gave me flowers for no reason. | [
"declarative",
"exclamatory"
] | 0 | closed choice | grade4 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence tells about something, and it ends with a period. It is a declarative sentence. | |
Which solution has a higher concentration of yellow particles? | [
"neither; their concentrations are the same",
"Solution B",
"Solution A"
] | 1 | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the yellow particles represent the solute. To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
Use the concentration formula to find the number of yellow particles per mill... | |
What is the expected ratio of offspring with smooth fruit to offspring with fuzzy fruit? Choose the most likely ratio. | [
"2:2",
"1:3",
"4:0",
"0:4",
"3:1"
] | 2 | In a group of tomato plants, some individuals have smooth fruit and others have fuzzy fruit. In this group, the gene for the fruit texture trait has two alleles. The allele for fuzzy fruit (f) is recessive to the allele for smooth fruit (F).
This Punnett square shows a cross between two tomato plants. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate ratios of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | To determine how many boxes in the Punnett square represent offspring with smooth fruit or fuzzy fruit, consider whether each phenotype is the dominant or recessive allele's version of the fruit texture trait. The question tells you that the f allele, which is for fuzzy fruit, is recessive to the F allele, which is for... | |
Not supported with pagination yet | Which text uses the word random in its traditional sense? | [
"At the grocery store, Rosanne hastily grabbed fruits and vegetables at random, filling her shopping cart with a hodgepodge of food.",
"Rosanne made a random trip to the grocery store, though her kitchen was already stocked with a hodgepodge of food."
] | 0 | closed choice | grade12 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The first text uses random in its traditional sense: made or occurring without a definite pattern.
At the grocery store, Rosanne hastily grabbed fruits and vegetables at random, filling her shopping cart with a hodgepodge of food.
The second text uses random in its nontraditional sense: odd or out of place.
Rosanne mad... | |
Identify the question that Kirk's experiment can best answer. | [
"Does the type of flour used in the muffins affect the number of muffins that turn brown after 30 minutes in the oven?",
"Do muffins made with white flour have larger volumes than muffins made with whole wheat flour?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Kirk made six batches of muffins over the course of one day. He used whole wheat flour in three of the batches and white flour in the other three batches. He divided the batter into muffin tins, using two ounces of batt... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
What is the capital of Nevada? | [
"Boise",
"Reno",
"Carson City",
"Montgomery"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Carson City is the capital of Nevada. | |||
Not supported with pagination yet | Which would smell more? | [
"silver ring",
"soap bar"
] | 1 | closed choice | grade2 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. | Smelly is a property. A smelly material has a strong smell.
Look at each picture, one at a time. Imagine smelling the material shown in each picture.
Of the choices, the soap bar would smell more. A bar of soap has a strong smell. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the north pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Which continent is highlighted? | [
"Africa",
"Europe",
"Asia",
"Antarctica"
] | 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 Antarctica. | ||
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 | grade5 | natural science | physics | Magnets | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magni... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
decorate - dynamite | [
"dawn",
"diesel"
] | 1 | closed choice | 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 diesel is between the guide words decorate - dynamite, it would be found on that page. | |
Not supported with pagination yet | Which is the scratchiest? | [
"nylon shorts",
"asphalt road",
"paper tissue"
] | 1 | closed choice | grade4 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. Some examples of properties are shiny, hard, fragile, and stretchy.
For examp... | Scratchy is a property. A scratchy material is rough and itchy against your skin.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the asphalt road is the scratchiest. If you touch an asphalt road, it will feel rough and itchy. | |
Not supported with pagination yet | Which is a simple sentence? | [
"Bears eat honeybees, and some birds eat them, too.",
"Tomorrow the price of gas may go up."
] | 1 | closed choice | grade3 | 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 second sentence is the simple sentence. It has one subject and predicate.
Tomorrow the price of gas may go up. | |
Not supported with pagination yet | Based on this information, what is Walker'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).
Walker is a cow from this group. Walker has the homozygous genotype hh for the horns 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 ... | Walker's genotype for the horns gene is hh. Walker's genotype of hh has only h alleles. The h allele is for having horns. So, Walker's phenotype for the horns trait must be having horns.
To check this answer, consider whether Walker's alleles are dominant or recessive. The allele for having horns (h) is recessive to th... |
Not supported with pagination yet | Is the following statement true or false?
The cytoplasm of a plant cell is made mostly of water. | [
"true",
"false"
] | 0 | true-or false | grade4 | natural science | biology | Cells | Cell part functions: true or false | The cytoplasm of a plant cell is made mostly of water.
This statement is true. All cells have cytoplasm. The cytoplasm has many cell parts inside it, but it is made mostly of water. | ||
Not supported with pagination yet | What is the volume of a jar of baby food? | [
"4 cups",
"4 fluid ounces",
"4 gallons"
] | 1 | Select the best estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose customary units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using customary units, volume may be written in units of fluid ounces, cups,... | The best estimate for the volume of a jar of baby food is 4 fluid ounces.
4 cups and 4 gallons are both too much. |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
shadow - swollen | [
"scarf",
"stall"
] | 1 | 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 stall is between the guide words shadow - swollen, it would be found on that page. | |
Which property do these three objects have in common? | [
"bumpy",
"fragile",
"sweet"
] | 1 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A fragile object will break into pieces if you drop it. All three objects are fragile.
A bumpy object is covered in lumps and bumps. The icicle is bumpy, but the glass bowl is not.
Sugar has a sweet taste. None of the objects are sweet.
The property ... | |
Based on the map, what was true about the Silk Road around the year 1300 CE? | [
"The Silk Road connected parts of East Asia, the Middle East, and Europe.",
"The Silk Road connected East Asia and the Americas by sea.",
"The Silk Road was made up of only land routes."
] | 0 | The map below shows a network of trade routes known as the Silk Road. Between 200 BCE and 1350 CE, merchants, or traders, traveled along many parts of these routes.
Look at the map, which shows the Silk Road around the year 1300 CE. Then answer the question below. | closed choice | grade6 | social science | world-history | The Silk Road | The medieval Silk Road | |||
Is soapstone a mineral? | [
"no",
"yes"
] | 0 | Soapstone has the following properties:
no fixed crystal structure
not made by living things
found in nature
made mostly of talc
solid | yes or no | grade6 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Properties are used to identify different substances. Minerals have the following properties:
It is a solid.
It is formed in nature.
It is not made by organisms.
It is a pure substance.
It has a fixed crystal structure.
If a substance has all five of these properties, then it is a mineral.
Look closely at the last thre... | Soapstone does not have all the properties of a mineral. So, soapstone is not a mineral. | |
Which of the following could Valentina's test show? | [
"how much the drone weighed with the blade guards",
"if the blade guards would break in a crash",
"if adding the blade guards made the drone fly poorly"
] | 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... | ||
Is syenite a mineral? | [
"yes",
"no"
] | 1 | Syenite has the following properties:
no fixed crystal structure
not made by organisms
solid
not a pure substance
naturally occurring | yes or no | grade6 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Properties are used to identify different substances. Minerals have the following properties:
It is a solid.
It is formed in nature.
It is not made by organisms.
It is a pure substance.
It has a fixed crystal structure.
If a substance has all five of these properties, then it is a mineral.
Look closely at the last thre... | Syenite does not have all the properties of a mineral. So, syenite is not a mineral. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Rachel said that she couldn't go to the film festival with her sister because of final exams.",
"Rachel told her sister that she couldn't go to the film festival because of final exams."
] | 1 | 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 first answer choice contains a vague pronoun reference. The pronoun she could refer to Rachel or her sister.
Rachel told her sister that she couldn't go to the film festival because of final exams.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so t... | |
Not supported with pagination yet | Which object has more thermal energy? | [
"a 5-kilogram block of copper at a temperature of 95°C",
"a 5-kilogram block of copper at a temperature of 50°C"
] | 0 | 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 move faster, the temperature goes up. The matter now has both ... | The two blocks of copper have the same mass but different temperatures. Since the 95°C block is hotter than the 50°C block, it has more thermal energy. |
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"
] | 0 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade8 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | The particles in both samples have the same average speed, but each particle in sample 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... | |
Not supported with pagination yet | Assume all other forces on Barbara are balanced. Which statement describes the forces on Barbara? | [
"The forces are balanced, so there is no net force on Barbara.",
"The forces are unbalanced, so there is a net force on Barbara."
] | 1 | Barbara is sitting on a roller coaster cart as it reaches the bottom of a big loop. Earth's gravity is pulling down on Barbara with a force of 600N. The seat of the cart is pushing up on Barbara with a force of 1,200N. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Balanced and unbalanced forces | A force is a push or a pull that acts on an object. Every force has a direction and a magnitude, or strength. If two forces act on an object in opposite directions, the forces are called opposing forces.
When opposing forces have the same magnitude, they are balanced. If all the forces on an object are balanced, there ... | To determine if there is a net force on Barbara, look at the forces:
Earth's gravity is pulling Barbara down with a force of 600 N.
The seat of the cart is pushing Barbara up with a force of 1,200 N.
The forces are in opposite directions, and the forces have different magnitudes: 600 N and 1,200 N. This means that the ... |
Not supported with pagination yet | Using only these supplies, which question can Ariana investigate with an experiment? | [
"Do squash plants grow larger if the seeds are planted in small pots or in large pots?",
"If squash seeds and tomato seeds are planted with compost, which type of plant grows larger?",
"Do squash plants grow larger if the seeds are planted with compost or without compost?"
] | 2 | Ariana has a small vegetable garden, which includes a compost pile of food scraps. She notices that some of the squash plants growing next to the compost pile grow differently than squash plants that are farther away. She wonders what factors affect how her squash plants grow. So, she decides to design an experiment. S... | 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... | |
Which rhetorical appeal is primarily used in this ad? | [
"ethos (character)",
"pathos (emotion)",
"logos (reason)"
] | 0 | closed choice | grade12 | language science | writing-strategies | Persuasive strategies | Identify appeals to ethos, pathos, and logos in advertisements | The purpose of an advertisement is to persuade people to do something. To accomplish this purpose, advertisements use three types of persuasive strategies, or appeals.
Appeals to ethos, or character, show the writer or speaker as trustworthy, authoritative, or sharing important values with the audience. An ad that appe... | The ad appeals to ethos, or character, by featuring an endorsement from a celebrity. | ||
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"neither; the samples have the same temperature",
"sample B",
"sample A"
] | 0 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade7 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | Each particle in the two samples has the same mass, and the particles in both samples have the same average speed. So, the particles in both samples have the same average kinetic energy.
Because the particles in both samples have the same average kinetic energy, the samples must have the same temperature. | |
What is the capital of West Virginia? | [
"Birmingham",
"Baton Rouge",
"Huntington",
"Charleston"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Charleston is the capital of West Virginia. | |||
Not supported with pagination yet | Which closing is correct for a letter? | [
"Best wishes,\nMarie",
"Best Wishes,\nMarie"
] | 0 | closed choice | grade4 | language science | punctuation | Formatting | 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 closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Which continent is highlighted? | [
"Europe",
"North America",
"Antarctica"
] | 0 | closed choice | grade2 | social science | geography | Geography | Identify oceans and continents | A continent is one of the seven largest areas of land on earth. | This continent is Europe. | ||
Not supported with pagination yet | Answer the riddle.
I am round.
You need me to see.
I may be blue, green, or brown.
What am I? | [
"an eye",
"a head"
] | 0 | closed choice | grade1 | language science | vocabulary | Comprehension strategies | What am I? | An eye is round.
You need an eye to see.
An eye may be blue, green, or brown. | ||
Not supported with pagination yet | Which figure of speech is used in this text?
"This box weighs a ton!" Fernando panted. "Allie, would you mind helping me carry it up the stairs?" | [
"hyperbole",
"chiasmus"
] | 0 | closed choice | grade12 | 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.
A ton is an exaggeration, since it would be impossible for one or two people to carry a box that weighed a ton, or 2000 pounds. | |
Not supported with pagination yet | Based on this information, what is Lottie's phenotype for the fur length trait? | [
"long fur",
"ff"
] | 0 | In a group of Syrian hamsters, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele F is for short fur, and the allele f is for long fur.
Lottie, a Syrian hamster from this group, has long fur. Lottie has two alleles for long fur. | closed choice | grade8 | 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. Lottie's observable version of the fur length trait is long fur. So, Lottie's phenotype for the fur length trait is long fur. |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Brody got off the mountain by the skin of his teeth. | [
"the Bible",
"U.S. history"
] | 0 | 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 by the skin of his teeth is the Bible.
In the Bible, Job complains to God about his hardships, saying that both strangers and those he loves have turned against him. He says, "My bone cleaveth to my skin and to my flesh, and I am escaped with the skin of my teeth." Scholars have long debated ... | |
Not supported with pagination yet | Based on this information, what is Boxer's phenotype for the coat pattern trait? | [
"solid coloring",
"white spots"
] | 0 | In a group of cows, some individuals have solid coloring and others have white spots. In this group, the gene for the coat pattern trait has two alleles. The allele for solid coloring (A) is dominant over the allele for white spots (a).
Boxer is a cow from this group. Boxer has the heterozygous genotype Aa for the coat... | 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 Boxer's phenotype for the coat pattern trait. First, consider the alleles in Boxer's genotype for the coat pattern gene. Then, decide whether these alleles are dominant or recessive.
The allele for solid coloring (A) is dominant over the allele for white spots (a). This means A is a dominant allel... |
Which country is highlighted? | [
"Fiji",
"Vanuatu",
"the Federated States of Micronesia",
"Tonga"
] | 0 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Fiji. | |||
Is chalk a mineral or a rock? | [
"rock",
"mineral"
] | 0 | Chalk has the following properties:
solid
found in nature
not made by organisms
not a pure substance
white
no 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... | The properties of chalk match the properties of a rock. So, chalk is a rock. | |
Not supported with pagination yet | Which online professional profile is more formal? | [
"Sales professional with strong interpersonal skills.",
"Sales pro who can really sell and is great with people."
] | 0 | 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 online professional profile is more formal. It uses more elevated language (sales professional, strong interpersonal skills). The other professional profile uses imprecise language (really) and abbreviations (sales pro). | |
Not supported with pagination yet | Select the living thing. | [
"clownfish",
"beach ball",
"helicopter",
"bracelet"
] | 0 | closed choice | grade4 | natural science | biology | Classification | Identify living and nonliving things | All living things are made up of cells. Plants, animals, and some fungi have many cells. Other living things are made up of just one cell.
All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. They use energy from food to grow and change.
All... | A helicopter is not a living thing.
A helicopter does not have all the traits of a living thing. It needs energy to fly, but it does not eat food. Helicopters get energy from gasoline or other fuel. They do not grow.
A beach ball is not a living thing.
Beach balls do not have all of the traits of living things. They do... | |
Which better describes the Great Barrier Reef ecosystem? | [
"It has salty water. It also has many different types of organisms.",
"It has water with not much salt. It also has many different types of organisms."
] | 0 | Figure: Great Barrier Reef.
The Great Barrier Reef is a tropical coral reef ecosystem near the northeastern coast of Australia. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | A tropical coral reef is a type of ecosystem. Tropical coral reefs have the following features: shallow, salty water, bright sunlight, and many different types of organisms. So, the Great Barrier Reef has salty water. It also has many different types of organisms. | |
What is the capital of New Jersey? | [
"Trenton",
"Santa Fe",
"Seattle",
"Chicago"
] | 0 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Trenton is the capital of New Jersey. | |||
Not supported with pagination yet | Using only these supplies, which question can Molly 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 | Molly 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 st... | 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... | |
Not supported with pagination yet | Select the animal that does not have a backbone. | [
"painted stork",
"grasshopper"
] | 1 | 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... | A grasshopper is an insect. Like other insects, a grasshopper does not have a backbone. It has a hard outer cover.
A painted stork is a bird. Like other birds, a painted stork has a backbone. |
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | 0 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade7 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | 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 ... | |
Select the organism in the same genus as the European wildcat. | [
"Felis nigripes",
"Lynx rufus",
"Neofelis nebulosa"
] | 0 | This organism is a European wildcat. Its scientific name is Felis silvestris. | 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 European wildcat's scientific name is Felis silvestris. The first word of its scientific name is Felis.
Lynx rufus is in the genus Lynx. The first word of its scientific name is Lynx. So, Lynx rufus and Felis silvestris are not in the same genus.
Felis nigripes is in the genus Felis. The first word of its scientific ... | |
Not supported with pagination yet | Select the vertebrate. | [
"redback spider",
"curlyhair tarantula",
"harbor seal",
"honey bee"
] | 2 | 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 redback spider is an invertebrate. It does not have a backbone. It has an exoskeleton.
A honey bee is an insect. Like other insects, a honey bee is an invertebrate. It does not have a backbone. It has an exoskeleton.
A harbor seal is a mammal. Like other mammals, a harbor seal is a vertebrate. It ... |
Which trait did Palaeocyparis have? Select the trait you can observe on the fossil. | [
"branches",
"cones",
"flowers"
] | 0 | This picture shows a fossil of an ancient plant called Palaeocyparis. This fossil shows one of the plant's branches.
Fossils of Palaeocyparis have been found in rocks that are more than 150,000,000 years old. | closed choice | grade6 | natural science | earth-science | Fossils | Compare fossils to modern organisms | The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's activiti... | ||
Which statement describes the Bering Land Bridge National Preserve ecosystem? | [
"It has warm summers and cool winters.",
"It has many evergreen trees.",
"It has long, cold winters and short, cool summers."
] | 2 | Figure: Bering Land Bridge National Preserve.
Bering Land Bridge National Preserve is a tundra ecosystem in western Alaska. The preserve is home to herds of caribou, muskoxen, and reindeer. | closed choice | grade8 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A tundra is a type of ecosystem. Tundras have the following features: long, cold winters and short, cold summers, soil that is frozen year-round, and mostly small plants. So, the following statement describes the Bering Land Bridge National Preserve ecosystem: long, cold winters and short, cold summers, soil that is fr... | |
Not supported with pagination yet | Complete the paragraph.
A volcano is a (). Volcanoes can erupt. During a volcanic eruption, melted rock () the ground. | [
"fire below Earth's surface . . . turns solid below",
"hole in Earth's surface . . . comes out of",
"type of melted rock . . . flows into"
] | 1 | closed choice | grade2 | natural science | literacy-in-science | Earth events | Changes to Earth's surface: volcanic eruptions | A volcano is a hole in the ground. During a volcanic eruption, melted rock comes out of the ground through a volcano. | ||
Not supported with pagination yet | Which figure of speech is used in this text?
All the joy the world contains
Has come through wishing happiness for others.
All the misery the world contains
Has come through wanting pleasure for oneself.
—Shantideva, The Way of the Bodhisattva | [
"understatement",
"antithesis"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement | 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 antithesis, the contrasting of opposing ideas within a parallel grammatical structure.
Shantideva contrasts two parallel phrases, all the joy the world contains and all the misery the world contains. | |
Not supported with pagination yet | How long is a long-distance running race? | [
"22 kilometers",
"22 meters",
"22 millimeters",
"22 centimeters"
] | 0 | 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 long-distance running race is 22 kilometers.
22 millimeters, 22 centimeters, and 22 meters are all too short. |
Not supported with pagination yet | Which tense does the sentence use?
Mr. Johnson signed his name on the letter. | [
"future tense",
"past tense",
"present tense"
] | 1 | closed choice | grade2 | 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 past tense. You can tell because it uses a past-tense verb, signed. The verb ends in -ed and tells you about something that has already happened. | |
Not supported with pagination yet | Select the animal that has a backbone. | [
"grasshopper",
"sea eagle"
] | 1 | Hint: Mammals, birds, fish, reptiles, and amphibians all 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... | A sea eagle is a bird. Like other birds, a sea eagle has a backbone.
A grasshopper is an insect. Like other insects, a grasshopper does not have a backbone. It has a hard outer cover. |
Which statement describes the Oglala National Grassland ecosystem? | [
"It has heavy rain.",
"It has a medium amount of rain."
] | 1 | Figure: Oglala National Grassland.
Oglala National Grassland is a prairie grassland ecosystem in northwestern Nebraska. This grassland contains large rock formations called badlands. | closed choice | grade6 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A prairie grassland is a type of ecosystem. Prairie grasslands have the following features: hot summers and cool winters, a medium amount of rain, and soil that is rich in nutrients. So, the following statements describe the Oglala National Grassland ecosystem: hot summers and cool winters, a medium amount of rain, and... | |
Which better describes the Shenandoah National Park ecosystem? | [
"It has cold, wet winters. It also has soil that is rich in nutrients.",
"It has warm, dry summers. It also has many different types of trees."
] | 0 | Figure: Shenandoah National Park.
Shenandoah National Park is a temperate deciduous forest ecosystem in northern Virginia. | closed choice | grade4 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A temperate deciduous forest is a type of ecosystem. Temperate deciduous forests have the following features: warm, wet summers and cold, wet winters, soil that is rich in nutrients, and only a few types of trees. So, Shenandoah National Park has cold, wet winters. It also has soil that is rich in nutrients. | |
Not supported with pagination yet | Complete the sentence.
A rock heating up in a campfire 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... | A rock heating up in a campfire is a physical change. The temperature of the rock goes up, but the rock is still made of the same type of matter. | |
Not supported with pagination yet | Which tense does the sentence use?
Julia and Sofia race down the hill. | [
"present tense",
"future tense",
"past tense"
] | 0 | closed choice | grade2 | 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, race. The verb tells you about something that is true or happening now. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
"Trisha is such a Pollyanna!" Kendrick announced with a sigh. | [
"British history",
"literature"
] | 1 | closed choice | grade7 | 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 Pollyanna is literature.
The character Pollyanna, from Eleanor Porter's children's book, is a young girl who finds good in everything and everyone.
The allusion Pollyanna means an overly optimistic person. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Bruce felt better about collaborating on the research project after Ted talked with him about it.",
"After Ted talked with Bruce about the research project, he felt better about collaborating on it."
] | 1 | closed choice | grade10 | 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 first answer choice contains a vague pronoun reference. The pronoun he could refer to Ted or Bruce.
After Ted talked with Bruce about the research project, he felt better about collaborating on it.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so t... | |
Is a pair of dice a solid or a liquid? | [
"a solid",
"a liquid"
] | 0 | closed choice | grade2 | natural science | physics | States of matter | Classify matter as solid or liquid | 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... | A pair of dice is a solid. A solid has a size and shape of its own.
When you roll a pair of dice, the dice have a shape of their own. They are still cubes when they stop rolling. | ||
What is the expected ratio of offspring with bright orange cheeks to offspring with pale orange cheeks? Choose the most likely ratio. | [
"4:0",
"1:3",
"2:2",
"0:4",
"3:1"
] | 4 | 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).
This Punnett square shows a cross between two cockat... | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate ratios of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | To determine how many boxes in the Punnett square represent offspring with bright orange cheeks or pale orange cheeks, consider whether each phenotype is the dominant or recessive allele's version of the cheek color trait. The question tells you that the R allele, which is for bright orange cheeks, is dominant over the... | |
Which animal's mouth is also adapted for bottom feeding? | [
"spotted eagle ray",
"discus"
] | 0 | Sturgeons eat invertebrates, plants, and small fish. They are bottom feeders. Bottom feeders find their food at the bottom of rivers, lakes, and the ocean.
The 's mouth is located on the underside of its head and points downward. Its mouth is adapted for bottom feeding.
Figure: sturgeon. | 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 sturgeon.
The sturgeon's mouth is located on the underside of its head and points downward. Its mouth is adapted for bottom feeding. The sturgeon uses its mouth to find food hidden in the sediment at the bottom of rivers, lakes, and the ocean.
Now look at each animal. Figure out which animal ... | |
Is the following statement about our solar system true or false?
The volume of Uranus is less than ten times the volume of Neptune. | [
"false",
"true"
] | 1 | Use the data to answer the question below. | true-or false | grade8 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice.
The volume of a planet is a very large quantity. Large quantities such as this are often written in scientific notation.
For ex... | To determine if this statement is true, calculate the value of ten times the volume of Neptune.
Then compare the result to the volume of Uranus. The volume of Uranus is 6.83 x 10^13 km^3, which is less than 6.25 x 10^14 km^3. So, the volume of Uranus is less than ten times the volume of Neptune. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
already - anchor | [
"amuse",
"artist"
] | 0 | closed choice | grade2 | 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 amuse is between the guide words already - anchor, it would be found on that page. | |
Not supported with pagination yet | Using only these supplies, which question can Jennifer investigate with an experiment? | [
"When wrapped in a cotton shirt and placed in the sun, does a large jar or a small jar heat up more?",
"When placed in the sun, does a glass jar wrapped in a black cotton shirt heat up more than a glass jar wrapped in a white cotton shirt?",
"When placed in the sun, does a glass jar wrapped in cotton heat up mo... | 1 | Jennifer is outside with her friend on a sunny day. Jennifer is wearing a light-colored shirt, and she notices that she feels colder than her friend, who is wearing a dark shirt. She wonders what factors affect how fabric warms an object. So, she decides to design an experiment. She has the following supplies available... | 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 | What information supports the conclusion that Julia inherited this trait? | [
"Julia and her mother both wear their hair in braids.",
"Julia's parents have red hair. They passed down this trait to Julia."
] | 1 | Read the description of a trait.
Julia has red hair. | closed choice | grade3 | natural science | biology | Heredity | 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 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... | |
Which bird's beak is also adapted to filter through mud? | [
"mallard",
"hanging parrot"
] | 0 | Ringed teals 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 teal's beak.
Figure: ringed teal. | 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 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 ringed teal.
The ringed teal has a wide, flat beak. Its beak is adapted to filter through mud. The ringed teal 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 teal's beak.
No... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Olivia took the memory card out of the digital camera and put the card in her desk drawer.",
"Olivia took the memory card out of the digital camera and put it in her desk drawer."
] | 1 | closed choice | grade10 | 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 memory card or the digital camera.
The first answer choice shows a possible correction for the vague pronoun reference. It has been replaced with the card.
Olivia took the memory card out of the digital camera and put the car... | |
Not supported with pagination yet | Which object has the most thermal energy? | [
"an orange at a temperature of 93°F",
"an orange at a temperature of 66°F",
"an orange at a temperature of 68°F"
] | 0 | 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 oranges have the same mass but different temperatures. Since the 93°F orange is the hottest, it has the most thermal energy. |
Which solution has a higher concentration of pink particles? | [
"Solution B",
"Solution A",
"neither; their concentrations are the same"
] | 1 | The diagram below is a model of two solutions. Each pink ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container.
Use the concentration formula to find the number of pink particles per milliliter.
... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Diana has a scar on her left hand. | [
"acquired",
"inherited"
] | 0 | 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... | Children do not inherit their parent's scars. Instead, scars are caused by the environment. People can get scars after they get hurt. So, having a scar is an acquired trait. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Stacy has no school spirit—she never comes to any of our football games. | [
"guilt by association: a negative association intended to discredit someone or something",
"false dichotomy: an argument that presents only two choices when more options exist"
] | 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 Stacy doesn't have school spirit, because she doesn't go to football games. However, there may be a number of reasons why Stacy doesn't go to football games. This illustrates a type of logical fallacy known as a false dichotomy. | |
Not supported with pagination yet | What is the volume of a large soup pot? | [
"5 liters",
"5 milliliters"
] | 0 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a large soup pot is 5 liters.
5 milliliters is too little. |
Not supported with pagination yet | What does the idiom in this text suggest?
In such an unfamiliar environment, Nick was a fish out of water. | [
"Nick felt out of place.",
"Nick had not visited that location before."
] | 0 | 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 a fish out of water suggests that Nick felt out of place. A fish out of water is someone out of his or her usual, comfortable environment. | |
Which solution has a higher concentration of yellow particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 2 | The diagram below is a model of two solutions. Each yellow 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 yellow particles represent the solute. To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
Use the concentration formula to find the number of yellow particles per mill... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Brennan's recent behavior made his parents begin to see his friend Edgar as some sort of Svengali. | [
"literature",
"modern history"
] | 0 | 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 Svengali is literature.
In George du Maurier's novel Trilby, Svengali is a hypnotist who exerts such power over the central character that she is suddenly able to sing, which she was unable to do before.
The allusion Svengali means a person with an unduly strong influence over someone else. | |
Not supported with pagination yet | What information supports the conclusion that Josie inherited this trait? | [
"Josie and her mother both have short hair.",
"Josie's parents were born with wavy hair. They passed down this trait to Josie."
] | 1 | Read the description of a trait.
Josie has wavy hair. | closed choice | grade5 | natural science | biology | Traits and heredity | 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 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... | |
Not supported with pagination yet | Based on this information, what is this Nile tilapia fish's phenotype for the body color trait? | [
"bb",
"a pink body"
] | 1 | In a group of Nile tilapia fish, some individuals have a greenish-brown body and others have a pink body. In this group, the gene for the body color trait has two alleles. The allele B is for a greenish-brown body, and the allele b is for a pink body.
A certain Nile tilapia fish from this group has a pink body. This fi... | closed choice | grade8 | 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. The Nile tilapia fish's observable version of the body color trait is a pink body. So, the fish's phenotype for the body color trait is a pink body. |
Not supported with pagination yet | Which figure of speech is used in this text?
The hum of the computer concerned Oscar. Was the problem with the power supply or the hard drive? | [
"onomatopoeia",
"metaphor"
] | 0 | closed choice | grade6 | 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.
Hum represents the sound the computer was making. | |
Not supported with pagination yet | Which text uses the word literally in its traditional sense? | [
"The curry that the chef prepared was so spicy that Victor literally had to drink three glasses of milk to ease the pain.",
"The curry that the chef prepared was so spicy that Victor's mouth was literally on fire by the time he finished his meal."
] | 0 | closed choice | grade11 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses literally in its traditional sense: in a factual, non-exaggerated way.
The curry that the chef prepared was so spicy that Victor literally had to drink three glasses of milk to ease the pain.
The first text uses literally in its nontraditional sense: nearly or in effect (often exaggerated). Victor'... | |
Not supported with pagination yet | Which figure of speech is used in this text?
After the stock market crash, many people's financial futures went into free fall. | [
"alliteration",
"simile"
] | 0 | closed choice | grade10 | language science | figurative-language | Literary devices | Classify figures 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.
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 alliteration, the repetition of sounds at the beginning of nearby words.
Financial futures went into free fall repeats the f sound. | |
Not supported with pagination yet | Using only these supplies, which question can Nicole investigate with an experiment? | [
"Which type of sunflower grows more leaves?",
"Do sunflowers grow taller if they are planted in planter boxes or in pots?",
"Do sunflowers grow bigger in sunny planter boxes or in shady planter boxes?"
] | 2 | Nicole wants to grow sunflowers in her backyard garden. She notices that some sunflowers grow much taller than others. She is curious about what factors affect how sunflowers grow. So, she decides to design an experiment. She has the following supplies available:
seeds from one type of sunflower
soil
one wooden planter... | 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... | |
During this time, thermal energy was transferred from () to (). | [
"each cake . . . the surroundings",
"the surroundings . . . each cake"
] | 0 | Fred baked two identical cakes. When he took them out of the oven, he left one cake in its pan and took the other cake out of its pan to put it on a plate. This table shows how the temperature of each cake changed over 5minutes. | closed choice | grade7 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each cake decreased, which means that the thermal energy of each cake decreased. So, thermal energy was transferred from each cake to the surroundings. | |
Which continent is highlighted? | [
"Australia",
"North America",
"Asia",
"Antarctica"
] | 2 | closed choice | grade3 | social science | geography | Geography | Identify oceans and continents | A continent is one of the seven largest areas of land on earth. | This continent is Asia. | ||
Not supported with pagination yet | Based on this information, what is Dolly's genotype for the myotonia congenita gene? | [
"having myotonia congenita",
"Mm"
] | 1 | This passage describes the myotonia congenita trait in goats:
In a group of goats, some individuals have myotonia congenita and others do not. In this group, the gene for the myotonia congenita trait has two alleles. The allele M is for having myotonia congenita, and the allele m is for not having myotonia congenita.
... | closed choice | grade8 | 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 genotype for a gene is its combination of alleles for that gene. Dolly has one allele for having myotonia congenita (M) and one allele for not having myotonia congenita (m). So, Dolly's genotype for the myotonia congenita gene is Mm. |
Not supported with pagination yet | How long does it take to knit a scarf? | [
"8 minutes",
"8 hours"
] | 1 | Select the better estimate. | closed choice | grade2 | 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 to knit a scarf is 8 hours.
8 minutes is too fast. |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 1 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The north pole of one magnet is closest to the north pole of the other magnet. Like poles repel. So, these magnets will repel each other. | |
Not supported with pagination yet | Which word does not rhyme? | [
"haze",
"spot",
"maze"
] | 1 | closed choice | grade1 | language science | phonological-awareness | Rhyming | Which word does not rhyme? | Rhyming words are words that end with the same sound.
The words tip and slip rhyme. They both end with the ip sound.
The words lake and make rhyme. They both end with the ake sound.
The words tip and lake don't rhyme. They end with different sounds. | The words haze and maze rhyme. They both end with the aze sound.
The word spot does not rhyme. It ends with a different sound. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is smaller 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 | 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 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magni... | |
What is the capital of Alaska? | [
"Juneau",
"Fairbanks",
"Anchorage",
"Fayetteville"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the West | Juneau is the capital of Alaska. | |||
What is the capital of Mississippi? | [
"Boise",
"Biloxi",
"Jackson",
"Billings"
] | 2 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Jackson is the capital of Mississippi. | |||
Not supported with pagination yet | Read the following text from a student essay. How can the writer best improve his or her ideas and development?
Why is smoking cigarettes bad for your health? Cigarettes contain poisonous substances like carbon monoxide and tar, which can harm every part of your body. Smoking causes heart disease and damages your blood... | [
"by focusing on one main idea",
"by stating the main idea clearly"
] | 0 | closed choice | grade6 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | When you review a fellow student's writing, try to make your feedback clear and specific. You can use questions such as the following to guide your feedback:
Ideas and development: Does the writer express a clear main idea and develop it with evidence, examples, and analysis?
Organization: Does the writer order ideas i... | The writer could best improve his or her ideas and development by focusing on one main idea.
For example, the writer could remove the underlined text to focus only on the reasons why smoking cigarettes is bad for your health.
Why is smoking cigarettes bad for your health? Cigarettes contain poisonous substances like ca... |
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.