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Which property do these four objects have in common? | [
"sweet",
"flexible",
"translucent"
] | 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.
Sugar has a sweet taste. All four objects are sweet.
A translucent object lets light through. But you cannot see clearly through a translucent object. The jello is translucent, but the candy sprinkles are not.
A flexible object can be folded or bent ... | |
Which month has the highest average precipitation in Santiago? | [
"March",
"June",
"October"
] | 1 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location.
A... | To describe the average precipitation trends in Santiago, look at the graph.
Choice "Mar" is incorrect.
Choice "Jun" is incorrect.
Choice "Oct" is incorrect.
June has an average monthly precipitation of about 80 millimeters. This is higher than in any other month. So, June has the highest average precipitation. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
plus - puff | [
"patrol",
"poke"
] | 1 | closed choice | grade8 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since poke is between the guide words plus - puff, it would be found on that page. | |
Not supported with pagination yet | Assume all other forces on Terrell are balanced. Which statement describes the forces on Terrell? | [
"The forces are balanced, so there is no net force on Terrell.",
"The forces are unbalanced, so there is a net force on Terrell."
] | 0 | Terrell is standing on a diving board at the pool. Earth's gravity is pulling down on Terrell with a force of 400N. The diving board is pushing up on Terrell with a force of 400N. | 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 Terrell, look at the forces:
Earth's gravity is pulling Terrell down with a force of 400 N.
The diving board is pushing Terrell up with a force of 400 N.
The forces are in opposite directions, and the forces have the same magnitude: 400 N. This means that the forces are balanced,... |
Not supported with pagination yet | How long does it take to bake lasagna in the oven? | [
"45 minutes",
"45 hours"
] | 0 | Select the better estimate. | closed choice | grade3 | natural science | units-and-measurement | Units and measurement | Choose units of time | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that the bus leaves in 7. You might be thinking, 7 what? Does the bus leave in 7 minutes? 7 seconds?
The number 7 on its own does not give you much information about when the... | The better estimate for how long it takes to bake lasagna in the oven is 45 minutes.
45 hours is too slow. |
Not supported with pagination yet | Which graduation announcement is more formal? | [
"Terrence Murray is graduating, and we couldn't be more proud!",
"We are proud to announce the graduation of Terrence Murray."
] | 1 | closed choice | grade12 | 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 graduation announcement is more formal. It uses more ceremonious language (proud to announce). The other graduation announcement uses more conversational language (we couldn't be more proud!). | |
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 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. | |
Not supported with pagination yet | What does the simile in this text suggest?
Tori rubbed coconut oil on her hands, which were like the parched earth during a drought. | [
"Tori's hands were dry and cracked.",
"Tori's hands were hot."
] | 0 | closed choice | grade9 | 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.
A simile uses like or as to compare two things that are not actually alike.
The cat's fur was as dark as the night. | The text includes a simile, using like or as to compare two things that are not actually alike.
The simile like the parched earth during a drought suggests that Tori's hands were dry and cracked. A drought is a period without rain; the ground during a drought can become hard and cracked. | |
Not supported with pagination yet | Which logical fallacy is used in the text?
The thing that makes Carson stand out as a remarkable cellist is that he's a marvelous musician who plays the cello splendidly. | [
"circular reasoning: an argument that supports a claim with the claim itself",
"bandwagon fallacy: the assumption that the popular choice is automatically correct",
"ad hominem: an attack against the person making the argument, rather than the argument itself"
] | 0 | closed choice | grade9 | 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 Carson is a remarkable cellist because he plays the cello well. However, the "evidence" is just a restatement of the claim itself. This illustrates a type of logical fallacy known as circular reasoning. | |
Not supported with pagination yet | What information supports the conclusion that Monica acquired this trait? | [
"Monica is most interested in human biology.",
"Monica learned biology by reading, observing, and experimenting."
] | 1 | Read the description of a trait.
Monica knows a lot about biology. | closed choice | grade4 | 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 | What information supports the conclusion that Dalton inherited this trait? | [
"Dalton and his biological parents have brown hair.",
"Dalton's biological father has curly hair.",
"Dalton's coworker also has curly hair."
] | 1 | Read the description of a trait.
Dalton has curly hair. | closed choice | grade7 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | What do these two changes have in common?
knitting yarn into a scarf
dew appearing on grass in the morning | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are caused by heating."
] | 0 | closed choice | grade8 | 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.
Knitting yarn into a scarf is a physical change. The yarn gets a different shape, but it is still made of the same type of matter.
Dew appearing on grass in the morning is a change of state. So, it is a physical change. Water vapor in the air touches the cool grass and becomes liquid.
T... | |
Not supported with pagination yet | According to the Fourth Amendment, when is a judge allowed to write a warrant? | [
"when the judge has a good reason to believe someone has broken the law",
"whenever the police pay the judge enough money",
"whenever the United States Congress is meeting",
"whenever a person refuses to let the police search his or her property"
] | 0 | A search warrant is a piece of paper that gives police the right to search a person's property. Only a judge can write a warrant. | closed choice | grade4 | social science | civics | Government | The Bill of Rights | A judge is allowed to write a search warrant when the judge has a good reason to believe someone has broken the law. The Fourth Amendment says that "unreasonable searches" are not allowed. It is not always clear what makes a search "unreasonable." Americans count on judges to decide. The diagram below explains how and ... | |
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"
] | 1 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade6 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | The particles in both samples have the same average speed, but each particle in sample B has more mass than each particle in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average kinetic energy, sample B mus... | |
Look at the models of molecules below. Select the elementary substance. | [
"dichloromethane",
"bromomethane",
"cyclooctasulfur"
] | 2 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | |||
How do sea otters use their pockets? | [
"They store the food they catch in their pockets.",
"They keep their babies safe inside their pockets."
] | 0 | Read the passage about sea otters' pockets.
Sea otters have bags of loose skin under each arm. They use them like pockets! When sea otters hunt, they put the food they find into their pockets. This keeps their paws free to catch even more food.
Sea otters often keep rocks in their pockets, too. They use the rocks to cr... | closed choice | grade2 | language science | reading-comprehension | Independent reading comprehension | Read and understand informational passages | Look at the passage. It tells you how sea otters use their pockets.
Sea otters have bags of loose skin under each arm. They use them like pockets! When sea otters hunt, they put the food they find into their pockets. This keeps their paws free to catch even more food. | ||
Not supported with pagination yet | Which is a sentence fragment? | [
"Arrived at the beach.",
"She put salt in the soup."
] | 0 | closed choice | grade3 | language science | writing-strategies | Sentences, fragments, and run-ons | Is it a complete sentence, a fragment, or a run-on? | A sentence is a group of words that forms a complete thought. It has both a subject and a verb.
My friends walk along the path.
A sentence fragment is a group of words that does not express a complete thought. It is usually missing a subject or a verb.
Knows the answer.
This is a sentence fragment. It is missing a subj... | Arrived at the beach is a sentence fragment. It is missing a subject. | |
Not supported with pagination yet | What is the volume of a large soup pot? | [
"2 fluid ounces",
"2 gallons",
"2 cups"
] | 1 | Select the best estimate. | closed choice | grade4 | 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 large soup pot is 2 gallons.
2 fluid ounces and 2 cups are both too little. |
Not supported with pagination yet | Which tense does the sentence use?
Dale will read his book before bed. | [
"present tense",
"future tense",
"past tense"
] | 1 | closed choice | grade4 | 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 future tense. You can tell because it uses will before the main verb, read. The verb tells you about something that is going to happen. | |
What is the capital of Washington? | [
"Carson City",
"Juneau",
"Spokane",
"Olympia"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify the 50 state capitals | Olympia is the capital of Washington. | |||
Which of these continents does the equator intersect? | [
"Australia",
"Europe",
"Asia"
] | 2 | closed choice | grade4 | social science | geography | Maps | Use lines of latitude and longitude | Lines of latitude and lines of longitude are imaginary lines drawn on some globes and maps. They can help you find places on globes and maps.
Lines of latitude show how far north or south a place is. We use units called degrees to describe how far a place is from the equator. The equator is the line located at 0° latit... | The equator is the line at 0° latitude. It intersects Asia. It does not intersect Europe or Australia. | ||
Not supported with pagination yet | The city of Richmond has been one of the world's biggest makers of cough drops for many years. But last month, Richmond's cough drop factories were destroyed by floods. What will probably happen to the overall supply of cough drops? | [
"The supply will probably go down.",
"The supply will probably go up."
] | 0 | closed choice | grade3 | 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... | Floods destroyed the cough drop factories in Richmond. The number of producers of cough drops went down. So, the supply of cough drops will probably go down. | |
Not supported with pagination yet | The city of Booneville has been one of the world's biggest makers of cough drops for many years. But last month, Booneville's cough drop factories were destroyed by floods. What will probably happen to the overall supply of cough drops? | [
"The supply will probably go up.",
"The supply will probably go 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... | Floods destroyed the cough drop factories in Booneville. The number of producers of cough drops went down. So, the supply of cough drops will probably go down. | |
Which property do these three objects have in common? | [
"sticky",
"opaque",
"transparent"
] | 1 | Select the best answer. | closed choice | grade3 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A sticky object can attach or stick to other things. None of the objects are sticky.
An opaque object does not let light through. All three objects are opaque.
You can see clearly through a transparent object. None of the objects are transparent.
The... | |
Not supported with pagination yet | According to Newton's third law, what other force must be happening? | [
"The gas pedal is pulling on Marie's foot.",
"The gas pedal is pushing on Marie's foot."
] | 1 | Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force.
Consider the following force:
Marie's foot is pushing on her car's gas pedal. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Predict forces using Newton's third law | According to Newton's third law, for every force, there is an equal and opposite force. This means that if one object is applying a force on a second object, the second object must also be applying a force on the first object, but in the opposite direction.
For example, if your hand is pushing down on a table, the tabl... | Marie's foot is pushing on the gas pedal. So, Newton's third law tells you that the gas pedal is pushing on Marie's foot. |
Not supported with pagination yet | Based on this information, what is Frankie's phenotype for the fur length trait? | [
"long fur",
"short fur"
] | 0 | In a group of cats, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele for short fur (F) is dominant over the allele for long fur (f).
Frankie is a cat from this group. Frankie has the homozygous genotype ff for the fur length gene. | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | Frankie's genotype for the fur length gene is ff. Frankie's genotype of ff has only f alleles. The f allele is for long fur. So, Frankie's phenotype for the fur length trait must be long fur.
To check this answer, consider whether Frankie's alleles are dominant or recessive. The allele for short fur (F) is dominant ove... |
Not supported with pagination yet | Which is harder? | [
"rubber balloons",
"metal flute"
] | 1 | closed choice | grade3 | 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... | Hard is a property. A hard material keeps its shape when you press on it with your finger.
Look at each picture, one at a time. Imagine pushing on the material shown in each picture.
Of the choices, the metal flute is harder. If you press on a metal flute, it will not change shape. | |
Not supported with pagination yet | Which text uses the word factoid in its traditional sense? | [
"A reporter for the Princeton Daily Mail dug up an amusing factoid about Princeton's founder while researching for an article about the town's early years.",
"The Princeton Daily Mail was forced to issue a retraction after printing a factoid about Princeton's founder. It turned out that the reporter had written t... | 1 | 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 factoid in its traditional sense: something made up presented as a true fact.
The Princeton Daily Mail was forced to issue a retraction after printing a factoid about Princeton's founder. It turned out that the reporter had written the article based on local legend rather than researching the actual... | |
Which state is highlighted? | [
"Rhode Island",
"New Hampshire",
"Vermont",
"Pennsylvania"
] | 3 | closed choice | grade3 | social science | geography | States | Identify states of the Northeast | This state is Pennsylvania. | |||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 1.",
"The magnetic force is weaker in Pair 2."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other. | Distance affects the strength of the magnetic force. But the distance between the magnets in Pair 1 and in Pair 2 is the same.
So, the strength of the magnetic force is the same in both pairs. | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
The average wind speed last weekend was around seven kilometers per hour. | [
"weather",
"climate"
] | 0 | Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade4 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
The average wind speed last weekend was around seven kilometers per hour.
This passage tells you about the wind speed last weekend. It describes the atmosphere at a certain place and time. So, this passage describes the weather. |
Not supported with pagination yet | What do these two changes have in common?
silver jewelry tarnishing
baking a loaf of bread | [
"Both are only physical changes.",
"Both are chemical changes.",
"Both are caused by heating.",
"Both are caused by cooling."
] | 1 | closed choice | grade4 | natural science | chemistry | Physical and chemical change | Compare 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.
Some chemical changes are caused by heating or cooling. For example, burning a piece of paper is a chemical change c... | Step 1: Think about each change.
Metal turning less shiny over time is called tarnishing. Silver jewelry tarnishing is a chemical change. The silver reacts with sulfur in the air to form black tarnish. The tarnish is a different type of matter that was not there before the change.
Baking a loaf of bread is a chemical c... | |
Which of the following could Mark's test show? | [
"how well the weather station would work when it was windy",
"if the weather station would work when the temperature was 50°C"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade6 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnetic force is stronger in Pair 2.",
"The magnetic force is stronger 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 | grade4 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are closer together, the magnetic force between them is stronger.
The magnets in Pair 2 are closer together than the magnets in Pair 1. So, the magnetic force is stronger in Pair 2 than in Pair 1. | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
While waiting for her search results, Jessica exclaimed, "My Internet connection is as speedy as a snail!" | [
"Jessica was patiently waiting for an Internet connection.",
"The Internet connection was very slow."
] | 1 | closed choice | grade12 | language science | figurative-language | Literary devices | Interpret the figure 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.
As speedy as a snail suggests that the Internet connection was very slow. A snail is not speedy, and neither was Jessica's Internet connection. | |
Not supported with pagination yet | Which type of sentence is this?
Darnell took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | [
"simple",
"compound",
"compound-complex",
"complex"
] | 0 | 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.
Darnell took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | |
Not supported with pagination yet | Which change better matches the sentence?
A part of Earth's surface moves and shakes. | [
"earthquake",
"flood"
] | 0 | closed choice | grade2 | natural science | earth-science | Earth events | Classify changes to Earth's surface | |||
Not supported with pagination yet | How long does it take to knit a scarf? | [
"7 minutes",
"7 hours"
] | 1 | Select the better estimate. | closed choice | grade3 | natural science | units-and-measurement | Units and measurement | Choose units of time | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that the bus leaves in 7. You might be thinking, 7 what? Does the bus leave in 7 minutes? 7 seconds?
The number 7 on its own does not give you much information about when the... | The better estimate for how long it takes to knit a scarf is 7 hours.
7 minutes is too fast. |
Not supported with pagination yet | Which correctly shows the title of an article? | [
"\"Lost to the Ages\"",
"Lost to the Ages"
] | 0 | closed choice | grade6 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, article, or short story should be in quotation marks.
"You Are My Sunshine" | An article should be in quotation marks.
The correct title is "Lost to the Ages." | |
What does pollen help a plant do? | [
"grow bigger",
"grow new leaves",
"make seeds"
] | 2 | The male part of a flower makes pollen. | closed choice | grade4 | natural science | biology | Plants | Describe and construct flowering plant life cycles | Many plants have flowers. These plants can use their flowers to reproduce, or make new plants like themselves. How do plants use their flowers to reproduce?
First, the male part of the flower makes pollen, and the female part makes eggs. Animals, wind, or water can move pollen. Pollination is what happens when pollen i... | Pollen helps the flower make seeds. After pollination, sperm cells from the pollen can combine with the eggs. These fertilized eggs can grow into seeds.
Pollen does not help a plant grow bigger or grow leaves. | |
Not supported with pagination yet | Would you find the word began on a dictionary page with the following guide words?
blade - bob | [
"no",
"yes"
] | 0 | yes or no | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since began is not between the guide words blade - bob, it would not be found on that page. | |
What is the capital of South Carolina? | [
"Richmond",
"Charleston",
"Frankfort",
"Columbia"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Columbia is the capital of South Carolina. | |||
Not supported with pagination yet | What does the allusion in this text suggest?
A Good Samaritan identified only as Mr. Li captured the world's attention in May 2014 when he rushed across a street in China to catch a baby falling from a window. | [
"The man generously helped a stranger.",
"The man was hoping for a reward."
] | 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 allusion is a brief reference to something or someone well known, often from history or literature.
"I'd better get home before I turn into a pumpkin!" Lila remarked. | The text uses an allusion, a brief reference to someone or something well known.
The allusion Good Samaritan suggests that the man generously helped a stranger. It refers to a biblical parable in which a Samaritan stops to help a stranger who has been beaten and left lying in the road. | |
Based on the table, which trickster figure is from Scandinavian traditions? | [
"Coyote",
"Loki"
] | 1 | This table shows different trickster figures from folktales and myths around the world. | closed choice | grade5 | language science | writing-strategies | Visual elements | Read graphic organizers | A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another.
When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca... | In a table, each cell gives information related to its row and column. This table shows different trickster figures from folktales and myths around the world.
Look in the Tradition column and find Scandinavian. Then, follow the row to the left to see which trickster figure is from that tradition. The left column tells ... | |
What is the name of the colony shown? | [
"Georgia",
"South Carolina",
"Massachusetts",
"Connecticut"
] | 1 | closed choice | grade8 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is South Carolina. | |||
Not supported with pagination yet | Would you find the word trouble on a dictionary page with the following guide words?
thrash - tiny | [
"no",
"yes"
] | 0 | yes or no | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since trouble is not between the guide words thrash - tiny, it would not be found on that page. | |
Not supported with pagination yet | Which word is not like the others? | [
"fly",
"cow",
"ant",
"bee"
] | 1 | closed choice | grade1 | language science | vocabulary | Categories | Which word is not like the others? | Some words are alike. They go together in a group.
Red, blue, and green go together. They are colors.
Mom, dad, grandma, and grandpa go together. They are people in a family. | Ant, bee, and fly go together. They are bugs. Cow is not a bug, so it is not like the other words. | |
What is the capital of Illinois? | [
"Burlington",
"Columbus",
"Bismarck",
"Springfield"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Springfield is the capital of Illinois. | |||
Not supported with pagination yet | Is this a sentence fragment?
Derailed by miscommunication and a lack of funding, Fernando and Cody's new business venture. | [
"yes",
"no"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify sentence fragments | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A sentence fragment is a group of words that does not express a complete thought.
Rehearsing daily because we have a concert in two weeks.
This fragment is missing a subjec... | This is a sentence fragment. It does not express a complete thought.
Derailed by miscommunication and a lack of funding, Fernando and Cody's new business venture.
Here is one way to fix the sentence fragment:
Fernando and Cody's new business venture has been derailed by miscommunication and a lack of funding. | |
Not supported with pagination yet | Compare the motion of three ducks. Which duck was moving at the lowest speed? | [
"a duck that moved 310kilometers north in 5hours",
"a duck that moved 365kilometers south in 5hours",
"a duck that moved 425kilometers west in 5hours"
] | 0 | 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 duck moved and the time it took to move that distance. The direction each duck moved does not affect its speed.
Notice that each duck moved for 5 hours. The duck that moved 310 kilometers moved the shortest distance in that time. So, that duck must have moved at the lowest speed. | |
Which property matches this object? | [
"bouncy",
"bumpy"
] | 1 | Select the better answer. | closed choice | grade3 | 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. Properties can also tell you how an object will behave when something happens to it. | Look at the object.
Think about each property.
A bumpy object is covered in lumps and bumps. The pineapple is bumpy.
A bouncy object will bounce back from the floor if you drop it. The pineapple is not bouncy. | |
Which property do these two objects have in common? | [
"sticky",
"shiny"
] | 1 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A sticky object can stick to other things. Neither of the objects are sticky.
A shiny object reflects a lot of light. Both objects are shiny.
The property that both objects have in common is shiny. | |
Which statement is supported by these pictures? | [
"The red deer has brown fur, and so did Megaloceros giganteus.",
"The red deer has legs, and so did Megaloceros giganteus."
] | 1 | Look at the two pictures below. The red deer is a modern organism, and Megaloceros giganteus is an extinct one. The red deer has many of the traits that Megaloceros giganteus had. | closed choice | grade4 | natural science | earth-science | Fossils | Compare ancient and modern organisms: use observations to support a hypothesis | Fossils are the remains of organisms that lived long ago. Scientists look at fossils to learn about the traits of ancient organisms. Often, scientists compare fossils to modern organisms.
Some ancient organisms had many traits in common with modern organisms. Other ancient organisms were very different from any organis... | The red deer has four legs. Its body is covered in brown fur.
This fossil shows the bones of long legs. So, Megaloceros giganteus had legs.
The fossil does not show any remains of skin or fur. So, you cannot tell from the fossil whether Megaloceros giganteus had brown fur.
Choice "The red deer has brown fur, and so did... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Kendra has a scar on her right leg. | [
"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 figure of speech is used in this text?
Soft language issued from their spittleless lips as they swished in slow circles round and round the field.
—James Joyce, A Portrait of the Artist as a Young Man | [
"chiasmus",
"assonance"
] | 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 assonance, the repetition of a vowel sound in a series of nearby words.
The words issued, spittleless, lips, swished, and in share a vowel sound. | |
Not supported with pagination yet | What kind of sentence is this?
What made Krysta so upset? | [
"exclamatory",
"interrogative"
] | 1 | closed choice | grade5 | 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 asks something, and it ends with a question mark. It is an interrogative sentence. | |
Not supported with pagination yet | Which figure of speech is used in this text?
Cole returned to the parking lot to find his car somewhat destroyed. Apparently someone had crashed into it while he was working and had broken the entire front windshield. | [
"oxymoron",
"hyperbole"
] | 0 | 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 an oxymoron, a joining of two seemingly contradictory terms.
Somewhat destroyed is a contradiction, because somewhat means partially or moderately, and destroyed implies totally wrecked. | |
Which type of relationship is formed when a cattle egret forages near a cow? | [
"parasitic",
"commensal",
"mutualistic"
] | 1 | Read the passage. Then answer the question.
A cow grazing in a field often disturbs insects that are hiding in the grass. When the insects hop or fly away from the cow, they are more visible to predators such as cattle egrets. An egret can catch more insects when it forages, or looks for food, near the grazing cow tha... | closed choice | grade7 | natural science | biology | Ecological interactions | Classify symbiotic relationships | When two organisms of different species interact in a way that affects one or both organisms, they form a symbiotic relationship. The word symbiosis comes from a Greek word that means living together. Scientists define types of symbiotic relationships based on how each organism is affected.
This table lists three commo... | When a cattle egret forages near a cow, the egret can catch more insects. So, the egret benefits from its relationship with the cow.
The cow is not helped by the egret, but the cow is not harmed, either. So, the cow is not significantly affected by its relationship with the egret.
Since the egret benefits and the cow i... | |
Not supported with pagination yet | Which change best matches the sentence?
Mud is left behind along the sides of a river. | [
"erosion",
"drought",
"deposition"
] | 2 | closed choice | grade3 | natural science | earth-science | Earth events | Classify changes to Earth's surface II | |||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
keep - knives | [
"king",
"kangaroo"
] | 0 | closed choice | grade3 | 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 king is between the guide words keep - knives, it would be found on that page. | |
Which property do these two objects have in common? | [
"bumpy",
"slippery"
] | 0 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A bumpy object is covered in lumps and bumps. Both objects are bumpy.
A slippery object is hard to hold onto or stand on. The tree bark is not slippery.
The property that both objects have in common is bumpy. | |
Not supported with pagination yet | Is this a sentence fragment?
In honor of Washington Irving's famous tale, the town of North Tarrytown, New York, voted to rename itself Sleepy Hollow in 1996. | [
"no",
"yes"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify sentence fragments | A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A sentence fragment is a group of words that does not express a complete thought.
Rehearsing daily because we have a concert in two weeks.
This fragment is missing a subjec... | This is not a sentence fragment. It is a complete sentence because it expresses a complete thought.
In honor of Washington Irving's famous tale, the town of North Tarrytown, New York, voted to rename itself Sleepy Hollow in 1996. | |
Not supported with pagination yet | What does the simile in this text suggest?
Ava rubbed coconut oil on her hands, which were like the parched earth during a drought. | [
"Ava's hands were dry and cracked.",
"Ava's hands were hot."
] | 0 | closed choice | grade12 | language science | figurative-language | Literary devices | Interpret the figure of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A simile uses like or as to compare two things that are not actually alike.
The cat's fur was as dark as the night. | The text includes a simile, using like or as to compare two things that are not actually alike.
The simile like the parched earth during a drought suggests that Ava's hands were dry and cracked. A drought is a period without rain; the ground during a drought can become hard and cracked. | |
Select the chemical formula for this molecule. | [
"H2Cl2",
"HCl2",
"H2Cl",
"HCl"
] | 3 | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Identify chemical formulas for ball-and-stick models | Every substance around you is made up of atoms. Atoms can link together to form molecules. The links between atoms in a molecule are called chemical bonds. Different molecules are made up of different chemical elements, or types of atoms, bonded together.
Scientists use both ball-and-stick models and chemical formulas ... | H is the symbol for hydrogen. According to the legend, hydrogen atoms are shown in light gray. Cl is the symbol for chlorine. According to the legend, chlorine atoms are shown in green. This ball-and-stick model shows a molecule with one hydrogen atom and one chlorine atom. The chemical formula will contain the symbols... | ||
Which animal's feet are also adapted for swimming? | [
"common guillemot",
"New Zealand falcon"
] | 0 | Red-eared sliders are a type of turtle. They are found in ponds, lakes, and rivers in many parts of North America. The feet of the are adapted for swimming.
Figure: red-eared slider. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m... | Look at the picture of the red-eared slider.
The red-eared slider has webbed feet. Its feet are adapted for swimming. As it swims, the red-eared slider uses its webbed feet to push itself through water.
Now look at each animal. Figure out which animal has a similar adaptation.
The common guillemot has webbed feet. Its ... | |
Which animal's neck is also adapted for hunting prey while keeping the rest of its body still? | [
"black-browed albatross",
"great blue heron"
] | 1 | 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 | grade4 | natural science | biology | Adaptations | Animal adaptations: beaks, mouths, and necks | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of 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 | Which greeting is correct for a letter? | [
"Dear Grandpa billy,",
"Dear Grandpa Billy,"
] | 1 | closed choice | grade3 | 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 greeting is correct:
Its first word is capitalized, and it ends with a comma. Grandpa Billy is capitalized because it is a proper noun. | |
Which of these states is farthest east? | [
"Arizona",
"Oregon",
"Nebraska",
"Montana"
] | 2 | closed choice | grade2 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the east arrow is pointing. Nebraska is farthest east. | ||
Which is this organism's common name? | [
"common loon",
"Gavia immer"
] | 0 | This organism is Gavia immer. It is also called a common loon. | closed choice | grade7 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Gavia immer is written in italics. The first word is capitalized, and the second word is not. So, it is the scientific name.
Gavia immer is the organism's scientific name. So, you know that common loon is the common name. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 1."
] | 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.
Both magnet sizes and distance affect the magnitude of the magnetic force. The sizes of the magnets in Pair 1 are... | |
Which property do these two objects have in common? | [
"bumpy",
"bouncy"
] | 0 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A bumpy object is covered in lumps and bumps. Both objects are bumpy.
A bouncy object will bounce back from the floor if you drop it. The caramel corn is not bouncy.
The property that both objects have in common is bumpy. | |
Which better describes the Steigerwald Forest ecosystem? | [
"It has soil that is poor in nutrients. It also has only a few types of trees.",
"It has soil that is rich in nutrients. It also has only a few types of trees."
] | 1 | Figure: Steigerwald Forest.
The Steigerwald Forest is a temperate deciduous forest ecosystem in Bavaria, a state in southern Germany. | 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, the Steigerwald Forest has soil that is rich in nutrients. It also has only a few types of trees. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 2.",
"The magnetic force is weaker in Pair 1."
] | 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 | grade4 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are farther apart, the magnetic force between them is weaker.
The magnets in Pair 1 are farther apart than the magnets in Pair 2. So, the magnetic force is weaker in Pair 1 than in Pair 2. | |
Not supported with pagination yet | What information supports the conclusion that Manuel inherited this trait? | [
"Manuel and his siblings all have naturally straight hair.",
"Manuel and his biological father have short hair.",
"Manuel's biological mother often wears her naturally brown hair in a bun."
] | 2 | Read the description of a trait.
Manuel has naturally brown hair. | 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.... | |
Based on the arrows, which of the following living things is a consumer? | [
"kelp",
"zooplankton"
] | 1 | Below is a food web from an ocean ecosystem. The ecosystem is in Monterey Bay, off the coast of California.
A food web is a model that shows how the matter eaten by living things moves through an ecosystem. The arrows show how matter moves through the food web. | closed choice | grade3 | natural science | biology | Ecosystems | Interpret food webs | A food web is a model.
Models can make things in nature easier to understand. Models can be simpler than the things they represent. A food web is a model that shows where living things in an ecosystem get their food. If a food web showed every living thing in an ecosystem, the food web would be hard to understand. So, ... | Consumers eat other living things. So, there are arrows in a food web that point from other living things to consumers.
The zooplankton has an arrow pointing to it from the phytoplankton. So, the zooplankton is a consumer.
The kelp does not have any arrows pointing to it. So, the kelp is a producer, not a consumer. | |
Not supported with pagination yet | What information supports the conclusion that Justin inherited this trait? | [
"Justin likes to wear a blue sweater to match his blue eyes.",
"Justin's mother has blue eyes. She passed this trait down to Justin."
] | 1 | Read the description of a trait.
Justin has blue eyes. | 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.... | |
Select the reptile below. | [
"gray tree frog",
"coral snake"
] | 1 | Reptiles have scaly, waterproof skin. Most reptiles live on land. A box turtle is an example of a reptile. | closed choice | grade3 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A gray tree frog is an amphibian. It has moist skin and begins its life in water.
There are many kinds of tree frogs. Most tree frogs are very small. They can walk on thin branches.
A coral snake is a reptile. It has scaly, waterproof skin.
Coral snakes spend most of their time underground or hiding under leaves. | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Before Lily had even met her future husband in person, she knew about his reputation as a Romeo. | [
"literature",
"Roman mythology"
] | 0 | closed choice | grade8 | 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 Romeo is literature.
In William Shakespeare's Romeo and Juliet, Romeo is known for the eloquent declaration of love with which he woos Juliet.
The allusion Romeo means a man who is very romantic. | |
Not supported with pagination yet | Select the amphibian. | [
"snowy owl",
"helmeted iguana",
"brown pelican",
"arroyo toad"
] | 3 | closed choice | grade5 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Amphibians have moist skin and begin their lives in water. | An arroyo toad is an amphibian. It has moist skin and begins its life in water.
Toads do not have teeth! They swallow their food whole.
A snowy owl is a bird. It has feathers, two wings, and a beak.
Snowy owls live in cold places. Even their feet have feathers to keep warm!
A brown pelican is a bird. It has feathers, t... | |
Which three months have an average precipitation of around 3.5inches in Seattle? | [
"June, July, and December",
"February, March, and October",
"April, May, and November"
] | 1 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location.
A... | To describe the average precipitation trends in Seattle, look at the graph.
Choice "Feb" is incorrect.
Choice "Mar" is incorrect.
Choice "Apr" is incorrect.
Choice "May" is incorrect.
Choice "Jun" is incorrect.
Choice "Jul" is incorrect.
Choice "Oct" is incorrect.
Choice "Nov" is incorrect.
Choice "Dec" is incorrect.
C... | |
Which animal's skin is also adapted for survival in cold places? | [
"Eurasian lynx",
"fire salamander"
] | 0 | Snow leopards live in the cold, snowy mountains of Central Asia. The 's skin is adapted to help the animal survive in cold places.
Figure: snow leopard. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the snow leopard.
The snow leopard has thick fur covering its skin. Its skin is adapted for survival in cold places. The snow leopard uses its fur to keep warm in cold weather.
Now look at each animal. Figure out which animal has a similar adaptation.
During the winter, the Eurasian lynx has thic... | |
Not supported with pagination yet | Which text uses the word disinterested in its traditional sense? | [
"Jenna is happy with her position as class treasurer. Though she would have the support of the student council, she is disinterested in running for student body president.",
"Jenna is excellent in her position as class treasurer. She always manages to be disinterested in student council debates about the allocati... | 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 second text uses disinterested in its traditional sense: unbiased or impartial.
Jenna is excellent in her position as class treasurer. She always manages to be disinterested in student council debates about the allocation of extracurricular funds.
The first text uses disinterested in its nontraditional sense: unint... | |
During this time, thermal energy was transferred from () to (). | [
"each battery . . . the surroundings",
"the surroundings . . . each battery"
] | 0 | Two friends bought phones that cost different amounts but had identical batteries. After using the phones for a while, both friends had to turn them off to let the batteries cool. This table shows how the temperature of each battery changed over 5minutes. | closed choice | grade8 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each battery decreased, which means that the thermal energy of each battery decreased. So, thermal energy was transferred from each battery to the surroundings. | |
Not supported with pagination yet | Which correctly shows the title of a newspaper? | [
"The Times of Earth",
"the Times of earth"
] | 0 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The word of is not important, so it should not be capitalized.
The correct title is The Times of Earth. | |
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
My dog, Skip, is the security guard for our front yard mailbox. | [
"simile",
"metaphor"
] | 1 | closed choice | grade5 | language science | figurative-language | Literary devices | Identify similes and metaphors | Similes and metaphors are figures of speech that compare two things that are not actually alike.
A simile compares two things by saying that one is like the other. Similes often use the words like and as.
My sister runs like a cheetah.
The sister's running and a cheetah's running are compared using the word like.
A che... | My dog, Skip, is the security guard for our front yard mailbox.
The words Skip and security guard are compared without the word like or as. So, the sentence uses a metaphor. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Amanda has a scar on her left hand. | [
"inherited",
"acquired"
] | 1 | Hint: Most scars are caused by accidents during a person's life. | 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... | 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. |
Select the organism in the same genus as the Burmese python. | [
"Python reticulatus",
"Chroicocephalus novaehollandiae",
"Melanoplus bivittatus"
] | 0 | This organism is a Burmese python. Its scientific name is Python bivittatus. | closed choice | grade7 | 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 Burmese python's scientific name is Python bivittatus. The first word of its scientific name is Python.
Python reticulatus is in the genus Python. The first word of its scientific name is Python. So, Python reticulatus and Python bivittatus are in the same genus.
Melanoplus bivittatus and Python bivittatus are not in... | |
Not supported with pagination yet | Based on this information, what is Rufus's genotype for the body size gene? | [
"a normal-sized body",
"BB"
] | 1 | In a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele B is for a normal-sized body, and the allele b is for a dwarf body.
Rufus, a rat from this group, has a normal-sized body. Rufus has two alleles for a n... | closed choice | grade6 | 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. Rufus has two alleles for a normal-sized body (B). So, Rufus's genotype for the body size gene is BB. |
During this time, thermal energy was transferred from () to (). | [
"each refrigerator . . . the surroundings",
"the surroundings . . . each refrigerator"
] | 1 | Two identical refrigerators in a restaurant kitchen lost power. The door of one fridge was slightly open, and the door of the other fridge was closed. This table shows how the temperature of each refrigerator changed over 10minutes. | 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 refrigerator increased, which means that the thermal energy of each refrigerator increased. So, thermal energy was transferred from the surroundings to each refrigerator. | |
Not supported with pagination yet | What is the mass of a bicycle? | [
"25 ounces",
"25 tons",
"25 pounds"
] | 2 | Select the best estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose customary units of mass | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Mass is a measurement of how much matter something contains.
There are many different units of mass. When you are using customary units, mass may be written with units of ounces, pounds, or ton... | The best estimate for the mass of a bicycle is 25 pounds.
25 ounces is too light and 25 tons is too heavy. |
What can Bridgette and Anthony trade to each get what they want? | [
"Anthony can trade his broccoli for Bridgette's oranges.",
"Bridgette can trade her tomatoes for Anthony's broccoli.",
"Bridgette can trade her tomatoes for Anthony's carrots.",
"Anthony can trade his almonds for Bridgette's tomatoes."
] | 1 | 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.
Bridgette and Anthony open their lunch boxes in the school cafeteria. Neither Bridgette nor Anthony got everything that they want... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Bridgette wants broccoli. Anthony wants tomatoes. They can trade tomatoes for broccoli to both get what they want. Trading other things would not help both people get more items they want. | ||
Complete the statement.
Boron nitride is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents boron nitride. Boron nitride is about as hard as diamond, one of the hardest substances on Earth. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | Use the model to determine whether boron nitride is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the chemi... | |
Not supported with pagination yet | Which word does not rhyme? | [
"beak",
"pick",
"peak"
] | 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 peak and beak rhyme. They both end with the eak sound.
The word pick does not rhyme. It ends with a different sound. | |
Which animal's skin is better adapted as a warning sign to ward off predators? | [
"impala",
"crown-of-thorns sea star"
] | 1 | Blue poison dart frogs have poisonous glands in their brightly colored skin. The bright colors serve as a warning sign that the animal is poisonous. The 's skin is adapted to ward off predators.
Figure: blue poison dart frog. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the blue poison dart frog.
The blue poison dart frog has poisonous glands in its brightly colored skin. Its skin is adapted to ward off predators. The bright colors serve as a warning sign that the blue poison dart frog is poisonous.
Now look at each animal. Figure out which animal has a similar ... | |
Not supported with pagination yet | Would you find the word sniff on a dictionary page with the following guide words?
scholar - stump | [
"no",
"yes"
] | 1 | yes or no | grade3 | 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 sniff is between the guide words scholar - stump, it would be found on that page. | |
Select the organism in the same genus as the cocoi heron. | [
"Falco peregrinus",
"Pelecanus philippensis",
"Ardea herodias"
] | 2 | This organism is a cocoi heron. Its scientific name is Ardea cocoi. | closed choice | grade5 | natural science | biology | Scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A cocoi heron's scientific name is Ardea cocoi. The first word of its scientific name is Ardea.
Pelecanus philippensis is in the genus Pelecanus. The first word of its scientific name is Pelecanus. So, Pelecanus philippensis and Ardea cocoi are not in the same genus.
Ardea herodias is in the genus Ardea. The first word... | |
What is the probability that a goat produced by this cross will not have myotonia congenita? | [
"4/4",
"2/4",
"1/4",
"0/4",
"3/4"
] | 0 | This passage describes the myotonia congenita trait in goats:
Myotonia congenita is a condition that causes temporary muscle stiffness. When goats with myotonia congenita attempt to run from a resting position, their leg muscles often stiffen, causing them to fall over. Because of this behavior, these goats are referre... | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | ||
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Mrs. Monroe told her assistant to book a flight to Springtown immediately.",
"Mrs. Monroe informed her assistant that she had to book a flight to Seoul immediately."
] | 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 second answer choice contains a vague pronoun reference. The pronoun she could refer to Mrs. Monroe or her assistant.
Mrs. Monroe informed her assistant that she had to book a flight to Seoul immediately.
The first answer choice shows a possible correction for the vague pronoun reference. The text has been rewritte... | |
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 1 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the south pole of the other magnet. Like poles repel. So, these magnets will repel each other. | |
Not supported with pagination yet | Which object has the most thermal energy? | [
"an 800-gram rock at a temperature of 31°C",
"an 800-gram rock at a temperature of 24°C",
"an 800-gram rock at a temperature of 20°C"
] | 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 rocks have the same mass but different temperatures. Since the 31°C rock is the hottest, it has the most thermal energy. |
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.