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What is the capital of Indiana? | [
"Indianapolis",
"Des Moines",
"Fort Wayne",
"Jefferson City"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Indianapolis is the capital of Indiana. | |||
Which of the following could Hansen's test show? | [
"how much athletes would sweat in the fabric",
"how long it would take the sample fabric to dry after it absorbed one drop of water",
"if the sample fabric would absorb one drop of water in less than one second"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade8 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Not supported with pagination yet | Choose the poem that uses onomatopoeia. | [
"I have seen the proudest stars\nThat wander on through space,\nEven the sun and moon,\nBut not your face.",
"Ay, bring the hillside beech\nFrom where the owlets meet and screech,\nAnd ravens croak;\nThe crackling pine, and cedar sweet"
] | 1 | From Robert Hinckley Messenger, "Give Me the Old" and from Helen Dudley, "To One Unknown" | closed choice | grade9 | language science | reading-comprehension | Analyzing literature | Identify elements of poetry | Poets often use the sounds of words to create interesting effects and to express moods and emotions. Understanding these elements of poetry can help you better interpret and appreciate poetic forms.
Anaphora is the repetition of words or sequences of words at the beginning of multiple phrases, sentences, or lines.
Out ... | This poem uses onomatopoeia. It uses language that sounds like what it talks about. |
Which property do these four objects have in common? | [
"opaque",
"flexible",
"shiny"
] | 0 | Select the best answer. | closed choice | grade5 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
An opaque object does not let light through. All four objects are opaque.
A flexible object can be folded or bent without breaking easily. The tin foil is flexible, but the bowling ball and the metal nail are not.
A shiny object reflects a lot of lig... | |
Not supported with pagination yet | Which type of sentence is this?
Dominic took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | [
"compound",
"compound-complex",
"simple",
"complex"
] | 2 | closed choice | grade12 | language science | grammar | Phrases and clauses | Is the sentence simple, compound, complex, or compound-complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought that can stand alone as a sentence. A dependent clause (or subordinate clause) is not a complete thought and cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alon... | The sentence is simple. It is a single independent clause.
Dominic took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | |
Which property matches this object? | [
"shiny",
"bumpy"
] | 1 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. | Look at the object.
Think about each property.
A bumpy object is covered in lumps and bumps. The log is bumpy.
A shiny object reflects a lot of light. The log is not shiny. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Lexi is good at cooking. | [
"inherited",
"acquired"
] | 1 | Hint: Cooking well 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 cook. Instead, many people learn how to cook. So, cooking is an acquired trait. |
Which ocean is highlighted? | [
"the Atlantic Ocean",
"the Pacific Ocean",
"the Southern Ocean",
"the Arctic Ocean"
] | 0 | closed choice | grade7 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Atlantic Ocean. | ||
Not supported with pagination yet | What information supports the conclusion that Judith inherited this trait? | [
"Judith's parents have dark skin. They passed down this trait to Judith.",
"Judith and her father both have dark hair."
] | 0 | Read the description of a trait.
Judith has dark skin. | 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.... | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 0 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade2 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south.
Here are some examples of magnets.... | Will these magnets attract or repel? To find out, look at which poles are closest to each other.
The south pole of one magnet is closest to the north pole of the other magnet. Poles that are different attract. So, these magnets will attract each other. | |
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,... | Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magnitude of the magnetic force between them is smaller.
There is a greater distance between the magnets in Pair 2 than in Pair 1. So, the magnitude of the magnetic force is smaller in Pair 2 than in Pair 1. | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 1 | Figure: Nassau.
Nassau, a city in the Bahamas, has many tourists each winter. Because the city is in the tropics, the air is usually humid.
Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade6 | natural science | earth-science | Weather and climate | Weather and climate around the world | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the passage carefully.
Nassau, a city in the Bahamas, has many tourists each winter. Because the city is in the tropics, the air is usually humid.
The underlined part of the passage tells you about the usual pattern of humidity in Nassau. This passage does not describe what the weather is like on a particular day.... | |
Which animal is also adapted to be camouflaged among dead leaves? | [
"fantastic leaf-tailed gecko",
"Arctic wolf"
] | 0 | Leaf-mimic grasshoppers live in tropical forests around the world. This grasshopper is adapted to be camouflaged among dead leaves.
Figure: leaf-mimic grasshopper. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the leaf-mimic grasshopper.
The leaf-mimic grasshopper has a reddish-brown body. It is adapted to be camouflaged among dead leaves, which often have a reddish or brownish color. The word camouflage means to blend in.
Now look at each animal. Figure out which animal has a similar adaptation.
The f... | |
Not supported with pagination yet | Select the invertebrate. | [
"saturn butterfly",
"robin",
"Galapagos giant tortoise",
"ground squirrel"
] | 0 | Hint: Insects, spiders, and worms are invertebrates. | 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... | A saturn butterfly is an insect. Like other insects, a saturn butterfly is an invertebrate. It does not have a backbone. It has an exoskeleton.
A ground squirrel is a mammal. Like other mammals, a ground squirrel is a vertebrate. It has a backbone.
A Galapagos giant tortoise is a reptile. Like other reptiles, a Galapag... |
Not supported with pagination yet | What information supports the conclusion that Deb inherited this trait? | [
"Deb and her mother both have short hair.",
"Deb's parents were born with wavy hair. They passed down this trait to Deb."
] | 1 | Read the description of a trait.
Deb 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... | |
What is the capital of Nebraska? | [
"Topeka",
"Lincoln",
"Omaha",
"Pierre"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Lincoln is the capital of Nebraska. | |||
Not supported with pagination yet | Using only these supplies, which question can Mason investigate with an experiment? | [
"When hung in the laundry room, do black cloth towels or white cloth towels dry more quickly?",
"Do cloth towels dry faster if they are hung in the laundry room or in the backyard?",
"Does a small cloth towel or a large cloth towel dry faster when hung in the backyard?"
] | 1 | After Mason cleans up a spill, he hangs a wet cloth towel in the laundry room. Two hours later, he notices that the towel has partially dried. He wonders what factors affect how cloth dries. So, he decides to design an experiment. He has the following supplies available:
two identical white cloth towels
water
a clothes... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Uncle Danny,",
"dear Uncle Danny,"
] | 0 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first greeting is correct:
Its first word is capitalized, and it ends with a comma. Uncle Danny is capitalized because it is a proper noun. | |
Select the organism in the same species as the garden hyacinth. | [
"Hyacinthus orientalis",
"Ovis orientalis",
"Nerodia cyclopion"
] | 0 | This organism is a garden hyacinth. Its scientific name is Hyacinthus orientalis. | closed choice | grade8 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A garden hyacinth's scientific name is Hyacinthus orientalis.
Nerodia cyclopion does not have the same scientific name as a garden hyacinth. So, Hyacinthus orientalis and Nerodia cyclopion are not in the same species.
Hyacinthus orientalis has the same scientific name as a garden hyacinth. So, these organisms are in th... | |
Which property do these four objects have in common? | [
"slippery",
"smooth",
"hard"
] | 1 | Select the best answer. | closed choice | grade5 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A hard object does not change shape when pressed or squeezed. The wet ice cube, the magnifying glass, and the silver ring are hard, but the balloon is not.
A smooth object is not scratchy or rough. All four objects are smooth.
A slippery object is ha... | |
What is the name of the colony shown? | [
"Florida",
"Indiana",
"Connecticut",
"New Jersey"
] | 3 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is New Jersey. | |||
Not supported with pagination yet | Select the vertebrate. | [
"red-kneed tarantula",
"giant octopus",
"red-tailed hawk",
"castor bean tick"
] | 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 tarantulas, a red-kneed tarantula is an invertebrate. It does not have a backbone. It has an exoskeleton.
Like other octopuses, a giant octopus is an invertebrate. It does not have a backbone. It has a soft body.
A castor bean tick is an insect. Like other insects, a castor bean tick is an invertebrate. It d... |
Not supported with pagination yet | Select the deep sea ecosystem. | [
"This ecosystem has:\nwater at the bottom of the ocean\nno sunlight\norganisms that crawl or stick to the ground",
"This ecosystem has:\nshallow, salty water\nbright sunlight\nmany different types of organisms"
] | 0 | closed choice | grade4 | natural science | biology | Ecosystems | Identify 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 ecosystems. Here are some ways in which these ecosystems can differ from each... | A deep sea is a type of ecosystem. It has water at the bottom of the ocean, no sunlight, and organisms that crawl or stick to the ground.
Choice 1 is a deep sea ecosystem. It is at the bottom of the ocean. It is so far underwater that no sunlight can reach it.
Choice 2 is a tropical coral reef ecosystem. It has shallow... | |
Not supported with pagination yet | Which ping pong ball has a higher temperature? | [
"the ping pong ball with more thermal energy",
"the ping pong ball with less thermal energy"
] | 0 | Two ping pong balls are identical except for their thermal energies. | closed choice | grade6 | natural science | physics | Thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two ping pong balls are made of the same material and have the same mass. So, the ping pong ball with more thermal energy has a higher temperature. |
Which property matches this object? | [
"scratchy",
"shiny"
] | 0 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. | Look at the object.
Think about each property.
A scratchy object is rough and itchy against your skin. The velcro is scratchy.
A shiny object reflects a lot of light. The velcro is not shiny. | |
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"
] | 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 | grade6 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | The particles in both samples have the same average speed, but each particle in sample B has more mass than each particle in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average kinetic energy, sample B mus... | |
Identify the question that Simon's experiment can best answer. | [
"Does temperature affect how much bacteria can grow in liquid?",
"Do more bacteria grow in liquid with cinnamon than in liquid without cinnamon?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Simon mixed bacteria into a nutrient-rich liquid where the bacteria could grow. He poured four ounces of the mixture into each of ten glass flasks. In five of the ten flasks, he also added one teaspoon of cinnamon. He a... | 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... | ||
Why might raising cubs with other lionesses in a pride increase an African lioness's reproductive success? Complete the claim below that answers this question and is best supported by the passage.
Raising cubs with other lionesses in a pride increases the chances that (). | [
"the lioness's cubs will be around other cubs",
"the lioness's cubs will survive attacks",
"the lioness will feed the cubs of other lionesses"
] | 1 | Animals often behave in certain ways that can increase their reproductive success. Read the passage about a specific animal behavior. Then, follow the instructions below.
African lions live in groups called prides. In a pride, female lions, or lionesses, may give birth to cubs around the same time. When this happens, ... | closed choice | grade8 | natural science | literacy-in-science | Adaptations and natural selection | How can animal behaviors affect reproductive success? Identify evidence to support a claim | Animals increase their reproductive success when they have offspring that survive to reproduce.
Animals can increase their chances of having offspring by behaving in ways that help them get partners to mate and reproduce with. These partners are called mates. For example, animals may make special sounds, perform specif... | Look for the part of the passage that describes the effect of raising cubs with other lionesses in a pride. Use this information to determine why this behavior can increase the African lioness's reproductive success.
Choice "African lions live in groups called prides. In a pride, female lions, or lionesses, may give bi... | |
Not supported with pagination yet | Which figure of speech is used in this text?
After basketball practice, I was so hungry that I could have eaten a horse. | [
"paradox",
"hyperbole"
] | 1 | 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 hyperbole, an obvious exaggeration that is not meant to be taken literally.
Could have eaten a horse is an exaggeration, since it is unlikely that someone could eat an entire horse. | |
Identify the question that Erin's experiment can best answer. | [
"Do slugs eat more from tomato leaves or broccoli leaves?",
"Do slugs weigh more after eating tomato leaves or broccoli leaves?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Erin cut tomato and broccoli plant leaves into one-inch squares. In each of 12 containers, she placed six leaf squares: three tomato-leaf squares and three broccoli-leaf squares. She put one slug from her garden into ea... | 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 | Which sentence is more formal? | [
"There are some things that Ms. Campbell wants to bring up at the next city council meeting.",
"Ms. Campbell has several important proposals to discuss at the next city council meeting."
] | 1 | closed choice | grade7 | 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 (some things, bring up).
The first sentence uses more precise language, so it is more formal overall. | |
Not supported with pagination yet | Select the animal. | [
"Fig trees have many leaves.",
"Ladybugs walk and fly."
] | 1 | 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 fig tree is a plant. It has many leaves.
Fig trees grow in dry, sunny places.
A ladybug is an animal. It walks and flies.
Some ladybugs have spots. Other types of ladybugs have stripes! | |
Identify the question that Brittany'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.
Brittany planted 25 tomato seeds one-half inch below the soil surface in each of six pots. Brittany added an equal amount of fertilizer to three of the six pots. She placed the pots in a plant growth chamber where all t... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
What can Connor and Vicky trade to each get what they want? | [
"Connor can trade his tomatoes for Vicky's sandwich.",
"Vicky can trade her broccoli for Connor's oranges.",
"Vicky can trade her almonds for Connor's tomatoes.",
"Connor can trade his tomatoes for Vicky's broccoli."
] | 3 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Connor and Vicky open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Connor wanted ... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Connor wanted broccoli in his lunch and Vicky was hoping for tomatoes. Look at the labeled part of the images.
Connor has tomatoes. Vicky has broccoli. They can trade tomatoes for broccoli to both be happier. Trading other things would not help either person get more items they want. | ||
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 A",
"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 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. | |
Not supported with pagination yet | Which tense does the sentence use?
The president of the company announces the plan. | [
"past tense",
"present tense",
"future tense"
] | 1 | closed choice | grade3 | 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, announces. The verb ends in -s and tells you about something that is true or happening now. | |
Which three months have the same average precipitation? | [
"December, January, and February",
"September, October, and November",
"June, July, and August"
] | 1 | Use the graph to answer the question below. | closed choice | grade3 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data.
A bar graph can be used to show the average amount of precipitation each month. Months with taller bars have more precipitation on average. | To describe the average precipitation trends in Chicago, look at the graph.
Choice "Jan" is incorrect.
Choice "Feb" is incorrect.
Choice "Jun" is incorrect.
Choice "Jul" is incorrect.
Choice "Aug" is incorrect.
Choice "Sep" is incorrect.
Choice "Oct" is incorrect.
Choice "Nov" is incorrect.
Choice "Dec" is incorrect.
C... | |
Not supported with pagination yet | Assume all other forces on the train are balanced. Which statement describes the forces on the train? | [
"The forces are unbalanced, so there is a net force on the train.",
"The forces are balanced, so there is no net force on the train."
] | 1 | A train is sitting on a magnetic track. Earth's gravity is pulling down on the train with a force of 200,000N. The magnetic track is pushing up on the train with a force of 200,000N. | closed choice | grade7 | 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 the train, look at the forces:
Earth's gravity is pulling the train down with a force of 200,000 N.
The magnetic track is pushing the train up with a force of 200,000 N.
The forces are in opposite directions, and the forces have the same magnitude: 200,000 N. This means that the ... |
Not supported with pagination yet | What is the temperature of a hot day in the desert? | [
"47°F",
"47°C"
] | 1 | Select the better estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Estimate temperatures | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Temperature can be written with units of degrees Fahrenheit (°F) or Celsius (°C). Use the list below to compare the two units.
212°F | Water boils | 100°C
98.6°F | Body temperature | 37°C
68°F ... | The better estimate for the temperature of a hot day in the desert is 47°C.
47°F is too cold. |
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 1.",
"The magnetic force is weaker in Pair 2.",
"The strength of the magnetic force is the same in both pairs."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other. | Distance affects the strength of the magnetic force. But the distance between the magnets in Pair 1 and in Pair 2 is the same.
So, the strength of the magnetic force is the same in both pairs. | |
Not supported with pagination yet | Which soccer ball has a lower temperature? | [
"the soccer ball with more thermal energy",
"the soccer ball with less thermal energy"
] | 1 | Two soccer balls are identical except for their thermal energies. | closed choice | grade5 | natural science | physics | Heat and thermal energy | How are temperature and mass related to thermal energy? | Matter is made of tiny particles called atoms. Atoms are always moving.
The energy of moving atoms is called thermal energy. The total amount of thermal energy in matter depends on three things: the type of matter, the amount of matter, and how fast the atoms are moving.
Temperature measures how hot or cold matter is. ... | The two soccer balls are made of the same material and have the same mass. So, the soccer ball with less thermal energy has a lower temperature. |
Not supported with pagination yet | Compare the motion of three motorboats. Which motorboat was moving at the highest speed? | [
"a motorboat that moved 180kilometers east in 5hours",
"a motorboat that moved 360kilometers south in 5hours",
"a motorboat that moved 90kilometers east in 5hours"
] | 1 | closed choice | grade3 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the kilometer.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about objects mov... | Look at the distance each motorboat moved and the time it took to move that distance. The direction each motorboat moved does not affect its speed.
Notice that each motorboat moved for 5 hours. The motorboat that moved 360 kilometers moved the farthest distance in that time. So, that motorboat must have moved at the hi... | |
Which of these oceans does the prime meridian intersect? | [
"the Arctic Ocean",
"the Pacific Ocean",
"the Indian Ocean"
] | 0 | closed choice | grade4 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The prime meridian is the line at 0° longitude. It intersects the Arctic Ocean. It does not intersect the Indian Ocean or the Pacific Ocean. | ||
Not supported with pagination yet | What kind of sentence is this?
No one lives at the base of the volcano. | [
"interrogative",
"declarative"
] | 1 | 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. | |
Is grape juice a solid, a liquid, or a gas? | [
"a gas",
"a liquid",
"a solid"
] | 1 | closed choice | grade3 | natural science | physics | States of matter | Classify matter as solid, liquid, or gas | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | Grape juice is a liquid. A liquid takes the shape of any container it is in.
If you pour grape juice into a different container, the grape juice will take the shape of that container. But the grape juice will still take up the same amount of space. | ||
Select the organism in the same species as the blue jay. | [
"Pelecanus occidentalis",
"Cyanocitta stelleri",
"Cyanocitta cristata"
] | 2 | This organism is a blue jay. Its scientific name is Cyanocitta cristata. | closed choice | grade6 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A blue jay's scientific name is Cyanocitta cristata.
Cyanocitta cristata is in the same genus as Cyanocitta stelleri, but they are not in the same species.
Organisms in the same species have the same scientific names. Cyanocitta cristata and Cyanocitta stelleri are different species within the same genus.
Pelecanus occ... | |
What is the name of the colony shown? | [
"Ohio",
"Michigan",
"West Virginia",
"New Hampshire"
] | 3 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is New Hampshire.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | |||
Not supported with pagination yet | Complete the statement.
Phosphine is (). | [
"a compound",
"an elementary substance"
] | 0 | Phosphine is a poisonous gas that some farmers use to kill insects. The chemical formula for phosphine is PH3. | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using chemical formulas | Every substance around you is made of one or more chemical elements, or types of atoms. Substances that are made of only one chemical element are elementary substances. Substances that are made of two or more chemical elements bonded together are compounds.
Every chemical element is represented by its own symbol. For s... | You can tell whether phosphine is an elementary substance or a compound by counting the number of symbols in its chemical formula. A symbol contains either one capital letter or a capital letter followed by one or two lowercase letters.
The chemical formula for phosphine is PH3. This formula contains two symbols: P for... |
What can Mackenzie and Zane trade to each get what they want? | [
"Mackenzie can trade her tomatoes for Zane's broccoli.",
"Zane can trade his broccoli for Mackenzie's oranges.",
"Zane can trade his almonds for Mackenzie's tomatoes.",
"Mackenzie can trade her tomatoes for Zane's sandwich."
] | 0 | Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Mackenzie and Zane open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Mackenzie wa... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Mackenzie wanted broccoli in her lunch and Zane was hoping for tomatoes. Look at the labeled part of the images.
Mackenzie has tomatoes. Zane has broccoli. They can trade tomatoes for broccoli to both be happier. Trading other things would not help either person get more items they want. | ||
Not supported with pagination yet | Which letter to the editor is more formal? | [
"I'm writing because I'm fed up about our library not staying open like it used to.",
"I am writing to express my dissatisfaction with the library's reduced hours."
] | 1 | closed choice | grade11 | language science | writing-strategies | Audience, purpose, and tone | Which text is most formal? | Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is... | The second letter to the editor is more formal. It uses more elevated language (writing to express my dissatisfaction, reduced hours). The other letter to the editor uses contractions (I'm) and slang (fed up). | |
Which of these continents does the equator intersect? | [
"Europe",
"Asia",
"North America"
] | 1 | closed choice | grade5 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The equator is the line at 0° latitude. It intersects Asia. It does not intersect North America or Europe. | ||
Which of these states is farthest south? | [
"Nebraska",
"Minnesota",
"Idaho",
"New Hampshire"
] | 0 | closed choice | grade2 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the south arrow is pointing. Nebraska is farthest south. | ||
Identify the question that Patty's experiment can best answer. | [
"Do more tomato seedlings grow when they are planted in soil with fertilizer compared to soil without fertilizer?",
"Does the humidity level where tomato seeds are planted affect the number of tomato seedlings that grow?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Patty planted 25 tomato seeds one-half inch below the soil surface in each of six pots. Patty added an equal amount of fertilizer to three of the six pots. She placed the pots in a plant growth chamber where all the see... | 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... | ||
Not supported with pagination yet | Which figure of speech is used in this text?
It's an open secret that Ryan is writing a book based on his experiences living in Singapore. He never talks about it, but almost all his friends know. | [
"oxymoron",
"euphemism"
] | 0 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure 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.
Open secret is a contradiction, because open describes something that is freely or publicly known, and a secret is hidden. | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Thanks,\nDana",
"thanks,\nDana"
] | 0 | closed choice | grade2 | language science | capitalization | Capitalization | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The second closing is correct:
Its first word is capitalized, and it ends with a comma. | |
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 A",
"sample B"
] | 1 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | 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 | Select the phase of the Moon shown in the model. | [
"new",
"full"
] | 1 | The model below shows the Moon at one position in its orbit around Earth. The white half of the Moon shows the part that is lit up by the Sun. | closed choice | grade5 | natural science | earth-science | Astronomy | Identify phases of the Moon | Although the Moon appears to shine, it does not give off light. Instead, we can see the Moon because it is lit up by the Sun. The part of the Moon that is both lit up by the Sun and facing Earth is called the Moon's phase.
The Moon orbits, or goes around, Earth. As it does, the Moon's phase changes. The model below sho... | |
Is rubber a mineral? | [
"yes",
"no"
] | 1 | Rubber has the following properties:
human-made
not a pure substance
solid
no fixed crystal structure | yes or no | grade5 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Properties are used to identify different substances. Minerals have the following properties:
It is a solid.
It is formed in nature.
It is not made by organisms.
It is a pure substance.
It has a fixed crystal structure.
If a substance has all five of these properties, then it is a mineral.
Look closely at the last thre... | Rubber does not have all the properties of a mineral. So, rubber is not a mineral. | |
Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 0 | Figure: Taj Mahal.
The Taj Mahal receives over two million visitors each year. It is located in northern India, where monsoon rains fall each year between June and September.
Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade6 | natural science | earth-science | Weather and climate | Weather and climate around the world | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the passage carefully.
The Taj Mahal receives over two million visitors each year. It is located in northern India, where monsoon rains fall each year between June and September.
The underlined part of the passage tells you about the usual pattern of precipitation at the Taj Mahal. This passage does not describe w... | |
What is the capital of Delaware? | [
"Dover",
"Birmingham",
"Augusta",
"Chicago"
] | 0 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Dover is the capital of Delaware. | |||
Which month has the lowest average temperature in Amsterdam? | [
"December",
"January",
"February"
] | 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 | To describe the average temperature trends in Amsterdam, look at the graph.
Choice "Feb" is incorrect.
Choice "Dec" is incorrect.
Choice "Jan" is incorrect.
The average temperature in February is around 2°C. This is the lowest average temperature of all of the months. | ||
Not supported with pagination yet | Last year, there were seven men's clothing stores on Main Street in Ashland. This year, there are only three. What probably happened to the overall supply of men's shirts in Ashland? | [
"The supply probably went up.",
"The supply probably went down."
] | 1 | closed choice | grade7 | social science | economics | Supply and demand | Understand overall supply and demand | Overall supply is the total amount of a good or service that producers make and sell. There are several things that can make overall supply go up or down. The table below shows how changes to these things might affect overall supply.
| Resources | Number of producers or suppliers | Expected change in demand
Supply goe... | When four men's clothing stores closed on Main Street, the number of suppliers went down. There were fewer stores selling men's shirts. So, the supply of men's shirts probably went down. | |
Which ocean is highlighted? | [
"the Arctic Ocean",
"the Southern Ocean",
"the Pacific Ocean",
"the Atlantic Ocean"
] | 3 | closed choice | grade7 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Atlantic Ocean. | ||
Not supported with pagination yet | What information supports the conclusion that Shawn acquired this trait? | [
"Shawn's scar was caused by an accident. He cut his arm when he fell off his bicycle.",
"Some scars fade more quickly than others."
] | 0 | Read the description of a trait.
Shawn has a scar on his right arm. | 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... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Much to our shock, Erik chose to turn the other cheek when Cora insulted him in a meeting. | [
"a song",
"the Bible"
] | 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 turn the other cheek is the Bible.
In the Bible, Jesus counsels his followers to resist retaliation. He says that if they are struck on the right cheek, they shouldn't lash out; instead, they should turn the other cheek toward their attacker.
The allusion turn the other cheek means to respond... | |
Is potassium feldspar a mineral or a rock? | [
"mineral",
"rock"
] | 0 | Potassium feldspar has the following properties:
glassy luster
pure substance
not made by organisms
naturally occurring
fixed crystal structure
solid | 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... | Potassium feldspar has all the properties of a mineral. So, potassium feldspar is a mineral. | |
Which property do these three objects have in common? | [
"yellow",
"slippery",
"fuzzy"
] | 1 | Select the best answer. | closed choice | grade3 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
Yellow is a color.
This color is yellow. The jello and the yogurt are not yellow.
A fuzzy object is covered in soft hair. The jello and the icy sidewalk are not fuzzy.
A slippery object is hard to hold onto or stand on. All three objects are slippery... | |
Which of these states is farthest west? | [
"Arkansas",
"New Mexico",
"Florida",
"Virginia"
] | 1 | closed choice | grade4 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. New Mexico is farthest west. | ||
Not supported with pagination yet | What information supports the conclusion that Percy acquired this trait? | [
"Percy rides his bicycle to school.",
"Percy's friend showed him how to ride a bicycle.",
"Percy and his mother both ride bicycles."
] | 1 | Read the description of a trait.
Percy can ride a bicycle. | 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.... | |
Which property matches this object? | [
"breakable",
"soft"
] | 0 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. | Look at the object.
Think about each property.
A soft object changes shape when you squeeze it. The ceramic plate is not soft.
A breakable object will break into pieces if you drop it. The ceramic plate is breakable. | |
Not supported with pagination yet | Which text message is more formal? | [
"Ms. Norton is already here. She's waiting in the lobby.",
"Heads up! Norton is here. In the lobby."
] | 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 first text message is more formal. It uses complete sentences, avoids slang (heads up), and uses the person's title (Ms. Norton). The other text message includes more casual language and sentence fragments. | |
Not supported with pagination yet | What do these two changes have in common?
boiling an egg
acid rain weathering a marble statue | [
"Both are only physical changes.",
"Both are caused by heating.",
"Both are chemical changes.",
"Both are caused by cooling."
] | 2 | closed choice | grade7 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Boiling an egg is a chemical change. The heat causes the matter in the egg to change. Cooked eggs and raw eggs are made of different types of matter.
Acid rain weathering a marble statue is a chemical change. The acid rain reacts with the outside of the statue and breaks it down into a ... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
shadow - sprout | [
"site",
"stump"
] | 0 | 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 site is between the guide words shadow - sprout, it would be found on that page. | |
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."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
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 2 are farther apart than the magnets in Pair 1. So, the magnetic force is weaker in Pair 2 than in Pair 1. | |
What is the capital of Tennessee? | [
"Phoenix",
"Trenton",
"Topeka",
"Nashville"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Nashville is the capital of Tennessee. | |||
What is the name of the colony shown? | [
"Delaware",
"New Jersey",
"South Carolina",
"North Carolina"
] | 0 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Delaware. | |||
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"\"This morning, it said that Rachel Navarro won the mayoral election in Fairfax,\" Jack remarked to his sister.",
"\"This morning, the newspaper said that Rachel Navarro won the mayoral election in Fairfax,\" Jack remarked to his sister."
] | 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 is used without its antecedent.
The first answer choice shows a possible correction for the vague pronoun reference. It has been replaced with the newspaper.
"This morning, the newspaper said that Rachel Navarro won the mayoral election in Fair... | |
During this time, thermal energy was transferred from () to (). | [
"each aquarium . . . the surroundings",
"the surroundings . . . each aquarium"
] | 0 | Two identical aquariums were next to an open window. One aquarium had a plastic cover on it, and the other was uncovered. This table shows how the temperature of each aquarium changed over 1.5hours. | closed choice | grade7 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each aquarium decreased, which means that the thermal energy of each aquarium decreased. So, thermal energy was transferred from each aquarium to the surroundings. | |
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 Seth's mouth was literally on fire by the time he finished his meal.",
"The curry that the chef prepared was so spicy that Seth literally had to drink three glasses of milk to ease the pain."
] | 1 | closed choice | grade9 | 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 literally in its traditional sense: in a factual, non-exaggerated way.
The curry that the chef prepared was so spicy that Seth literally had to drink three glasses of milk to ease the pain.
The second text uses literally in its nontraditional sense: nearly or in effect (often exaggerated). Seth's mo... | |
Not supported with pagination yet | What information supports the conclusion that Jackie acquired this trait? | [
"Jackie can fly a plane on cloudy days and at night.",
"A pilot taught Jackie how to fly a plane.",
"Jackie is in the Air Force. She flies a plane almost every day."
] | 1 | Read the description of a trait.
Jackie knows how to fly a plane. | closed choice | grade8 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
"Someone had better turn on the heat," Isabelle said, sweat glistening on her face. | [
"The temperature was too warm.",
"The temperature was just right."
] | 0 | closed choice | grade6 | 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.
Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic.
Olivia seems thrilled that her car keeps breaking dow... | The text uses verbal irony, which involves saying one thing but implying something very different.
Someone had better turn on the heat ironically suggests that the temperature was too warm. Isabelle did not think that more heat was needed; she was already sweating. | |
Which animal's mouth is also adapted for bottom feeding? | [
"banded butterflyfish",
"bat ray"
] | 1 | Leopard sharks eat organisms such as crabs, shrimp, and 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: leopard shark. | 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 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 leopard shark.
The leopard shark's mouth is located on the underside of its head and points downward. Its mouth is adapted for bottom feeding. The leopard shark uses its mouth to find food hidden in the sediment of the ocean floor.
Now look at each animal. Figure out which animal has a simila... | |
Not supported with pagination yet | What is the volume of a paper drinking cup? | [
"175 milliliters",
"175 liters"
] | 0 | Select the better estimate. | closed choice | grade4 | 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 paper drinking cup is 175 milliliters.
175 liters is too much. |
During this time, thermal energy was transferred from () to (). | [
"each bottle . . . the surroundings",
"the surroundings . . . each bottle"
] | 1 | Two bottles of soda were sitting on a porch on a hot day. The two bottles were identical, except that one bottle was made of brown glass and one bottle was made of clear glass. This table shows how the temperature of each bottle changed over 25minutes. | 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 bottle increased, which means that the thermal energy of each bottle increased. So, thermal energy was transferred from the surroundings to each bottle. | |
In this experiment, which were part of an experimental group? | [
"the kites with tails",
"the kites without tails"
] | 0 | The passage below describes an experiment.
Cameron and his friend Elizabeth flew nylon kites on the beach. They wondered if putting a tail on a kite would affect how well the kite flew.
Cameron flew a kite that did not have a tail for five minutes. Then, he attached a four-foot-long tail and flew the kite for five mor... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify control and experimental groups | Experiments have variables, or parts that change. You can design an experiment to investigate whether changing a variable between different groups has a specific outcome.
For example, imagine you want to find out whether adding fertilizer to soil affects the height of pea plants. You could investigate this question wit... | In this experiment, Cameron and Elizabeth investigated whether tails affect how well kites fly. So, the kites with tails were part of an experimental group.
There were no tails on the kites without tails. So, they were not part of an experimental group. | |
Not supported with pagination yet | Which organ receives signals from the body's senses? | [
"skeleton",
"heart",
"stomach",
"brain"
] | 3 | closed choice | grade5 | natural science | biology | Animals | Human organs and their functions | |||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Fans debated whether their team would rise from the ashes. | [
"U.S. history",
"Greek mythology"
] | 1 | 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 rise from the ashes is Greek mythology.
In Greek mythology, a mythical bird called the phoenix lives for hundreds of years before bursting into flames at its death. However, it soon rises from its own ashes and is reborn.
The allusion rise from the ashes means to come back after destruction o... | |
Which is the main persuasive appeal used in this ad? | [
"pathos (emotion)",
"logos (reason)",
"ethos (character)"
] | 1 | closed choice | grade7 | 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 that the writer or speaker is trustworthy or is an authority on a subject. An ad that appeals to ethos might do one... | The ad appeals to logos, or reason. It uses a graph to display information and uses specific figures (2 x longer). | ||
What is the capital of Arkansas? | [
"Fayetteville",
"Austin",
"Little Rock",
"Baton Rouge"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Little Rock is the capital of Arkansas. | |||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Jaylen spoke at the city council meeting, claiming the new recycling regulations were draconian. | [
"Greek history",
"a fairy tale"
] | 0 | closed choice | grade10 | 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 draconian is Greek history.
Draco, a government official in seventh-century Athens, Greece, wrote a code of laws that called for severe punishments for even minor offenses.
The allusion draconian means harsh. | |
Not supported with pagination yet | Which object has the most thermal energy? | [
"a 525-gram bath towel at a temperature of 4°C",
"a 525-gram bath towel at a temperature of 14°C",
"a 525-gram bath towel at a temperature of 9°C"
] | 1 | 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 bath towels have the same mass but different temperatures. Since the 14°C towel is the hottest, it has the most thermal energy. |
Select the organism in the same species as the common sheep. | [
"Castor fiber",
"Ovis aries",
"Alouatta caraya"
] | 1 | This organism is a common sheep. Its scientific name is Ovis aries. | 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 common sheep's scientific name is Ovis aries.
Alouatta caraya does not have the same scientific name as a common sheep. So, Ovis aries and Alouatta caraya are not in the same species.
Ovis aries has the same scientific name as a common sheep. So, these organisms are in the same species.
Castor fiber does not have the... | |
Which continent is highlighted? | [
"Antarctica",
"Asia",
"Australia",
"Europe"
] | 2 | 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 Australia. | ||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
weary - worm | [
"wail",
"why"
] | 1 | closed choice | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since why is between the guide words weary - worm, it would be found on that page. | |
Not supported with pagination yet | Which text uses the word can in its traditional sense? | [
"Janice can type using a keyboard with a QWERTY layout, but she prefers the Dvorak layout. The two keyboards have different arrangements of letters and symbols.",
"If Janice prefers a keyboard with the Dvorak layout, she can use mine. In my opinion, it's faster than typing on a keyboard with a QWERTY layout."
] | 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 first text uses can in its traditional sense: to have the ability to.
Janice can type using a keyboard with a QWERTY layout, but she prefers the Dvorak layout. The two keyboards have different arrangements of letters and symbols.
The second text uses can in its nontraditional sense: to have permission to.
If Janice... | |
Not supported with pagination yet | Which figure of speech is used in this text?
When Donald finally agreed to let his daughter adopt the stray dog, she responded with a smile that was a mile wide. | [
"paradox",
"hyperbole"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure 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 hyperbole, an obvious exaggeration that is not meant to be taken literally.
A smile that was a mile wide is an exaggeration, since it is physically impossible to have a smile that is actually a mile wide. | |
Is chalcopyrite a mineral? | [
"no",
"yes"
] | 1 | Chalcopyrite has the following properties:
not made by living things
solid
found in nature
pure substance
fixed crystal structure | 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... | Chalcopyrite has all the properties of a mineral. So, chalcopyrite is a mineral. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade4 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The north pole of one magnet is closest to the south pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Select the mammal below. | [
"green tree frog",
"cassowary",
"Canadian lynx",
"barn owl"
] | 2 | Mammals have hair or fur and feed their young milk.
Mammals are warm-blooded. Warm-blooded animals can control their body temperature.
A giraffe is an example of a mammal. | 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 barn owl is a bird. It has feathers, two wings, and a beak.
Barn owls live on every continent except Antarctica.
A cassowary is a bird. It has feathers, two wings, and a beak.
Cassowaries have wings, but they cannot fly! They can run very fast.
A Canadian lynx is a mammal. It has fur and feeds its young milk.
Canadia... | |
What is the name of the colony shown? | [
"Pennsylvania",
"New Jersey",
"New York",
"New Hampshire"
] | 0 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Pennsylvania. |
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.