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Which property do these three objects have in common? | [
"fragile",
"sticky",
"fuzzy"
] | 2 | Select the best answer. | closed choice | grade4 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A fuzzy object is covered in soft hair. All three objects are fuzzy.
A sticky object can attach or stick to other things. None of the objects are sticky.
A fragile object will break into pieces if you drop it. None of the objects are fragile.
The pro... | |
Not supported with pagination yet | Select the one animal that has all of the amphibian traits listed above. | [
"Green frogs have moist skin. Green frog tadpoles hatch from eggs without shells and live underwater. The adult frogs live on land near ponds and rivers. They may jump into the water to hide from predators.",
"Western gorillas have black, gray, or brown fur. Adult males are sometimes called silverbacks because th... | 0 | Amphibians are a group of animals with similar traits. The following traits can be used to identify amphibians:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells. Observe the animals and read the descriptions. | closed choice | grade5 | natural science | biology | Classification | Use evidence to classify mammals, birds, fish, reptiles, and amphibians | Scientists sort animals with similar traits into groups. This is called classification. Classification helps scientists learn about how animals live.
How do scientists classify animals? First, they make observations about an animal. Scientists observe the animal's traits, including its body parts and behavior. Then, sc... | To decide if an animal is part of a group, look at the traits of the group.
Amphibians have the following traits:
They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells.
Compare each animal's traits to the group's traits. Select the animal with traits similar to th... |
Select the organism in the same species as the smooth newt. | [
"Lissotriton vulgaris",
"Taricha granulosa",
"Ambystoma texanum"
] | 0 | This organism is a smooth newt. Its scientific name is Lissotriton vulgaris. | 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 smooth newt's scientific name is Lissotriton vulgaris.
Taricha granulosa does not have the same scientific name as a smooth newt. So, Lissotriton vulgaris and Taricha granulosa are not in the same species.
Lissotriton vulgaris has the same scientific name as a smooth newt. So, these organisms are in the same species.... | |
Which of these cities is marked on the map? | [
"Los Angeles",
"Denver",
"Las Vegas",
"San Jose"
] | 3 | closed choice | grade5 | social science | geography | Cities | Cities of the West | The city is San Jose, California. Los Angeles, Denver, and Las Vegas are marked with gray circles on the map below. | |||
Which material is this belt made of? | [
"metal",
"rubber"
] | 0 | closed choice | grade2 | natural science | physics | Materials | Identify multiple materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials.
Some objects are made of just one material.
Most nails are made of metal.
Other objects are made of more than one material.
This hammer is made of metal and wood. | Look at the picture of the belt.
The belt is made of two materials. The buckle is made of metal. The rest of the belt is made of leather. | ||
Not supported with pagination yet | Is the following trait inherited or acquired?
Dale has a scar on his right knee. | [
"inherited",
"acquired"
] | 1 | closed choice | grade5 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | 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 | Would you find the word shave on a dictionary page with the following guide words?
scissors - site | [
"no",
"yes"
] | 1 | yes or no | grade5 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since shave is between the guide words scissors - site, it would be found on that page. | |
Not supported with pagination yet | According to the passage, which statement is true? | [
"The House of Representatives is a part of Congress.",
"Congress does not have legislative power."
] | 0 | The Legislative Branch is described in Article I of the United States Constitution. Read Section 1 of Article I. Then answer the question.
All legislative powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives.
legislative: law-making
veste... | closed choice | grade8 | social science | civics | Government | The Legislative Branch | ||
Not supported with pagination yet | In the 1970s, very few companies made and sold personal computers. Nobody knew if consumers would want to buy them. But when computers turned out to be popular with consumers, more companies started making and selling them.
What happened to the overall supply of personal computers? | [
"The supply went down.",
"The supply went up."
] | 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... | Some of the first computer companies became successful quickly. Other companies saw that a lot of people wanted to buy personal computers. So more companies started selling them. The number of producers went up. So, the supply of personal computers went up. | |
Is saliva a solid, a liquid, or a gas? | [
"a solid",
"a liquid",
"a gas"
] | 1 | closed choice | grade4 | natural science | physics | States of matter | Identify and sort solids, liquids, and gases | Solid, liquid, and gas are states of matter. Matter is anything that takes up space. Matter can come in different states, or forms.
When matter is a solid, it has a definite volume and a definite shape. So, a solid has a size and shape of its own.
Some solids can be easily folded, bent, or broken. A piece of paper is a... | Saliva is a liquid. A liquid can change shape. But it still takes up the same amount of space.
When a dog begs for a treat, saliva might drip from its mouth. | ||
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 2.",
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude 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, but some of them are different sizes and shapes. | closed choice | grade5 | natural science | physics | Magnets | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | 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.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Not supported with pagination yet | Which sentence is more formal? | [
"Rice is super important for billions of people around the world.",
"Rice is the staple food for billions of people around the world."
] | 1 | closed choice | grade5 | language science | writing-strategies | Author's purpose and tone | Which sentence is more formal? | Formal writing is used for essays, business letters, and reports. The following types of informal language should be avoided in formal writing:
Type | Examples
slang | cool, awesome
idioms | knock your socks off
conversational language | gonna, kinda, yeah
abbreviated language | ASAP, FYI
overly simple or imprecise lan... | The second sentence is less formal. You can tell because it uses conversational language (super).
The first sentence uses formal language in place of the conversational language, so it is more formal overall. | |
What is the capital of Texas? | [
"Annapolis",
"Dallas",
"Austin",
"Des Moines"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Southeast | Austin is the capital of Texas. | |||
Not supported with pagination yet | Last year, there were seven men's clothing stores on Main Street in Hampton. This year, there are only three. What probably happened to the overall supply of men's shirts in Hampton? | [
"The supply probably went down.",
"The supply probably went up."
] | 0 | closed choice | grade8 | 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 of these states is farthest east? | [
"Nebraska",
"Arizona",
"Oklahoma",
"Florida"
] | 3 | closed choice | grade5 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the east arrow is pointing. Florida is farthest east. | ||
Which of the following was an independent variable in this experiment? | [
"the number of moldy blackberries",
"the temperature of the water"
] | 1 | The passage below describes an experiment. Read the passage and think about the variables that are described.
Liam's grandmother suggested that soaking berries in hot water might help prevent the berries from getting moldy.
To test this idea, Liam harvested fresh blackberries and divided them evenly into eight bowls. ... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify independent and dependent variables | Experiments have variables, or parts that change. You can design an experiment to find out how one variable affects another variable. For example, imagine that you want to find out if fertilizer affects the number of tomatoes a tomato plant grows. To answer this question, you decide to set up two equal groups of tomato... | ||
Not supported with pagination yet | Which figure of speech is used in this text?
Jaden's leaving his job? That's old news. He's been planning that for months. | [
"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.
Old news is a contradiction, because news is recent information. | |
Which of the following could Abdul'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... | ||
Not supported with pagination yet | Which is a simple sentence? | [
"First, Leo planted the geraniums in a clay pot, and then he placed the pot on a sunny windowsill in his kitchen.",
"Babe Ruth hit 714 home runs during his baseball career but struck out 1,330 times."
] | 1 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the simple sentence. It is a single independent clause.
Babe Ruth hit 714 home runs during his baseball career but struck out 1,330 times. | |
Which solution has a higher concentration of purple particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 2 | The diagram below is a model of two solutions. Each purple ball represents one particle of solute. | closed choice | grade8 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the purple particles represent the solute. To figure out which solution has a higher concentration of purple particles, look at both the number of purple particles and the volume of the solvent in each container.
Use the concentration formula to find the number of purple particles per mill... | |
Which bird's beak is also adapted to filter through mud? | [
"rosy-faced lovebird",
"northern pintail"
] | 1 | Ringed teals eat invertebrates and plants that live near water. The shape of the 's beak is adapted to filter through mud for food.
The gathers muddy water in its beak and then pushes it out through gaps along the sides. Bits of food, such as plant roots, are left behind inside the teal's beak.
Figure: ringed teal. | closed choice | grade4 | natural science | biology | Adaptations | Animal adaptations: beaks, mouths, and necks | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of a bird's beak is one example of an adaptation. Birds' beaks can be adapted in different ways. For example, a sharp hooked beak might help a bird tear through meat easily. ... | Look at the picture of the ringed teal.
The ringed teal has a wide, flat beak. Its beak is adapted to filter through mud. The ringed teal gathers muddy water in its beak. Then, it pushes the water out through gaps along the sides of the beak. Bits of food, such as plant roots, are left behind inside the teal's beak.
No... | |
Not supported with pagination yet | Select the plant. | [
"Barrel cactuses grow in the ground.",
"Gorillas eat leaves, fruits, and insects.",
"Honey bees walk and fly.",
"Kangaroos hop and swim."
] | 0 | closed choice | grade3 | 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 kangaroo is an animal. It hops and swims.
Kangaroos hop to move around. They use their large tails for balance while hopping.
A gorilla is an animal. It eats leaves, fruits, and insects.
Gorillas live in groups called troops.
A honey bee is an animal. It walks and flies.
A honey bee is an insect. Honey bees live in l... | |
Not supported with pagination yet | Which tense does the sentence use?
Mr. Meyer buys a new coat. | [
"future tense",
"past tense",
"present tense"
] | 2 | closed choice | grade2 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in present tense. You can tell because it uses a present-tense verb, buys. The verb ends in -s and tells you about something that is true or happening now. | |
Which property matches this object? | [
"breakable",
"bendable"
] | 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 breakable object will break into pieces if you drop it. The silk tie is not breakable.
A bendable object can be bent without breaking. The silk tie is bendable. | |
Complete the statement.
Nitrogen is (). | [
"a compound",
"an elementary substance"
] | 1 | The model below represents a molecule of nitrogen. itrogen gas makes up nearly 80% of the air you breathe. | closed choice | grade8 | 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 nitrogen is an elementary substance or a compound.
Step 1: Interpret the model.
In the ball-and-stick model shown above, both of the balls are the same color:
. The legend shows that blue represents the chemical element with the atomic symbol N. So, the model shows you that a molecule... | |
Which is the main persuasive appeal used in this ad? | [
"logos (reason)",
"pathos (emotion)",
"ethos (character)"
] | 0 | 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 that shows its brand outperforms other brands. | ||
Not supported with pagination yet | What is the mass of an elephant? | [
"6,165 kilograms",
"6,165 grams"
] | 0 | Select the better estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose metric 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 metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of an elephant is 6,165 kilograms.
6,165 grams is too light. |
Which statement describes the Cape Breton Highlands National Park ecosystem? | [
"It has soil that is frozen year-round.",
"It has many evergreen trees."
] | 1 | Figure: Cape Breton Highlands National Park.
Cape Breton Highlands National Park is a taiga ecosystem in eastern Canada. It is mostly covered with taiga forests that are home to moose, bears, bald eagles, and other organisms. | closed choice | grade6 | natural science | biology | Ecosystems | Describe ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A taiga is a type of ecosystem. Taigas have the following features: long, cold winters and short, cool summers, many evergreen trees, and soil that is poor in nutrients. So, the following statements describe the Cape Breton Highlands National Park ecosystem: long, cold winters and short, cool summers, many evergreen tr... | |
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 1.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude 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, but some of them are different sizes. | closed choice | grade6 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 1 attract. The magnets in Pair 2 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the ... | |
Is the following statement about our solar system true or false?
Jupiter's volume is more than 1,000 times as great as Earth's volume. | [
"false",
"true"
] | 1 | Use the data to answer the question below. | true-or false | grade7 | natural science | earth-science | Astronomy | Analyze data to compare properties of planets | A planet's volume tells you the size of the planet.
The primary composition of a planet is what the planet is made mainly of. In our solar system, planets are made mainly of rock, gas, or ice. | To determine if this statement is true, calculate the value of 1,000 times the volume of Earth.
Then compare the result to the volume of Jupiter. Jupiter's volume is 1,431,280 billion km^3, which is more than 1,090,000 billion km^3. So, Jupiter's volume is more than 1,000 times as great as Earth's volume. | |
What is the capital of New Mexico? | [
"Newport",
"Santa Fe",
"Albuquerque",
"Phoenix"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Santa Fe is the capital of New Mexico. | |||
Not supported with pagination yet | Select the invertebrate. | [
"castor bean tick",
"zebra dove",
"Solomon leaf frog",
"harvest mouse"
] | 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 zebra dove is a bird. Like other birds, a zebra dove is a vertebrate. It has a backbone.
A harvest mouse is a mammal. Like other mammals, a harvest mouse is a vertebrate. It has a backbone.
A Solomon leaf frog is an amphibian. Like other amphibians, a Solomon leaf frog is a vertebrate. It has a backbone.
A castor bea... |
Not supported with pagination yet | Using only these supplies, which question can Lorenzo investigate with an experiment? | [
"Does vinegar separate faster when stirred together with olive oil or with coconut oil?",
"Does vegetable oil separate faster when stirred together with vinegar or with water?",
"Does vegetable oil separate faster when stirred together with cold water or with hot water?"
] | 1 | Lorenzo mixes oil and vinegar to make salad dressing. He notices that after a few minutes, the oil and vinegar separate. He wonders what factors affect how quickly liquids separate. So, he decides to design an experiment. He has the following supplies available:
three glass bottles
olive oil
vegetable oil
vinegar
cold ... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Select the organism in the same genus as the mountain zebra. | [
"Equus zebra",
"Macropus giganteus",
"Camelus bactrianus"
] | 0 | This organism is a mountain zebra. Its scientific name is Equus zebra. | 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 mountain zebra's scientific name is Equus zebra. The first word of its scientific name is Equus.
This organism and the mountain zebra are in the same genus and the same species! Both organisms have the same scientific name, Equus zebra.
Macropus giganteus is in the genus Macropus. The first word of its scientific nam... | |
Not supported with pagination yet | Based on this information, what is Muffin's genotype for the fur color gene? | [
"brown fur",
"ff"
] | 1 | In a group of rabbits, some individuals have black fur and others have brown fur. In this group, the gene for the fur color trait has two alleles. The allele F is for black fur, and the allele f is for brown fur.
Muffin, a rabbit from this group, has brown fur. Muffin has two alleles for brown fur. | 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. Muffin has two alleles for brown fur (f). So, Muffin's genotype for the fur color gene is ff. |
Not supported with pagination yet | What kind of sentence is this?
Which of these professions do you think requires more formal education—being a lawyer or being a college professor? | [
"exclamatory",
"interrogative",
"imperative"
] | 1 | closed choice | grade7 | 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, and it always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An interrogative sentence is a question, and it always ends with a question mark.
Do you have any plans for the upcoming... | The sentence asks something, and it ends with a question mark. It is an interrogative sentence. | |
Not supported with pagination yet | Based on this information, what is Amigo's phenotype for the coat pattern trait? | [
"white spots",
"solid coloring"
] | 1 | In a group of cows, some individuals have solid coloring and others have white spots. In this group, the gene for the coat pattern trait has two alleles. The allele for solid coloring (A) is dominant over the allele for white spots (a).
Amigo is a cow from this group. Amigo has the heterozygous genotype Aa for the coat... | closed choice | grade6 | natural science | biology | Genes to traits | Genetics vocabulary: dominant and recessive | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | You need to determine Amigo's phenotype for the coat pattern trait. First, consider the alleles in Amigo's genotype for the coat pattern gene. Then, decide whether these alleles are dominant or recessive.
The allele for solid coloring (A) is dominant over the allele for white spots (a). This means A is a dominant allel... |
Not supported with pagination yet | What is the volume of a can of soda pop? | [
"330 liters",
"330 milliliters"
] | 1 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a can of soda pop is 330 milliliters.
330 liters is too much. |
What is the capital of Oregon? | [
"Portland",
"Salem",
"Cheyenne",
"Arlington"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the West | Salem is the capital of Oregon. | |||
Not supported with pagination yet | Complete the text.
After losing the Battles of Saratoga, British leaders changed their plans for the war. In 1778, they decided their main goal should be to control (). | [
"the Southern Colonies",
"the Middle Colonies",
"New England",
"the port of New Orleans"
] | 0 | closed choice | grade4 | social science | us-history | The American Revolution | The American Revolution: conclusion and aftermath | In 1778, the British leaders decided their main goal should be to control the Southern Colonies. After the Battles of Saratoga, the British gave up hope of controlling New England or the Middle Colonies. The port of New Orleans was under Spanish control. | ||
Not supported with pagination yet | What do these two changes have in common?
tearing a piece of paper
pouring milk on oatmeal | [
"Both are caused by heating.",
"Both are only physical changes.",
"Both are chemical changes.",
"Both are caused by cooling."
] | 1 | closed choice | grade3 | 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.
Tearing a piece of paper is a physical change. The paper tears into pieces. But each piece is still made of paper.
Pouring milk on oatmeal is a physical change. The oatmeal and milk form a creamy mixture. But making this mixture does not form a different type of matter.
Step 2: Look at ... | |
Which material is this soccer jersey made of? | [
"polyester",
"rock"
] | 0 | closed choice | grade3 | natural science | physics | Materials | Identify materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials. | Look at the picture of the soccer jersey.
The soccer jersey is made of polyester.
Polyester is a strong and light synthetic fabric. Synthetic materials are created by people. Polyester can be woven into materials to make clothes or even seat belts! It can also be used as stuffing in pillows and furniture. | ||
Not supported with pagination yet | Which figure of speech is used in this text?
Tony's leaving his job? That's old news. He's been planning that for months. | [
"chiasmus",
"oxymoron"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: review | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses an oxymoron, a joining of two seemingly contradictory terms.
Old news is a contradiction, because news is recent information. | |
Not supported with pagination yet | Which text uses the word travesty in its traditional sense? | [
"Devin realized that his essay about the Space Race was a bit inaccurate, but he still thought it a travesty that such an entertaining essay should receive a poor grade.",
"Devin's ill-researched essay about the Space Race received a poor grade because it presented such a travesty of the actual historical events.... | 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 travesty in its traditional sense: a ridiculous imitation; a parody.
Devin's ill-researched essay about the Space Race received a poor grade because it presented such a travesty of the actual historical events.
The second text uses travesty in its nontraditional sense: a disappointment or a tragedy.... | |
Which of the following could Stefan's test show? | [
"how steady a parachute with a 1 m vent was at 200 km per hour",
"if the spacecraft was damaged when using a parachute with a 1 m vent going 200 km per hour",
"whether a parachute with a 1 m vent would swing too much at 400 km per hour"
] | 0 | 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... | ||
Look at the models of molecules below. Select the elementary substance. | [
"dichloromethane",
"ozone",
"chloroform"
] | 1 | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Identify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | |||
Not supported with pagination yet | Would you find the word musket on a dictionary page with the following guide words?
maid - mist | [
"yes",
"no"
] | 1 | yes or no | grade2 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since musket is not between the guide words maid - mist, it would not be found on that page. | |
Not supported with pagination yet | Select the living thing. | [
"swing set",
"koala",
"brick wall",
"bathtub"
] | 1 | closed choice | grade4 | natural science | biology | Classification | Identify living and nonliving things | All living things are made up of cells. Plants, animals, and some fungi have many cells. Other living things are made up of just one cell.
All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. They use energy from food to grow and change.
All... | A brick wall is not a living thing.
Brick walls do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water.
A swing set is not a living thing.
Swing sets do not have all of the traits of living things. They do not grow or respond to their environment... | |
Not supported with pagination yet | Which is harder? | [
"toothpaste",
"wood chair"
] | 1 | closed choice | grade2 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. | 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 wood chair is harder. If you squeeze a piece of wood, it will not change shape. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the north pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Not supported with pagination yet | Is this a run-on sentence?
In 2014, researchers discovered forgotten satellite images of Earth from the early 1960s that, when compared with recent satellite photographs, reveal how humans have altered the face of the planet. | [
"no",
"yes"
] | 0 | yes or no | grade12 | language science | writing-strategies | Sentences, fragments, and run-ons | Identify run-on sentences | 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 run-on sentence is formed when two sentences are run together, joined by just a comma or by no punctuation at all. If only a comma is used, the run-on is called a comma s... | This is not a run-on sentence. It is not formed from two sentences that have been run together without appropriate punctuation.
In 2014, researchers discovered forgotten satellite images of Earth from the early 1960 s that, when compared with recent satellite photographs, reveal how humans have altered the face of the ... | |
In this experiment, which were part of a control group? | [
"the bottles that were at room temperature",
"the bottles that were cooled down"
] | 0 | The passage below describes an experiment.
Gina has a bubble machine and wants to know how to make the bubbles last longer. She read that bubbles burst when the liquid that makes up the bubbles evaporates. Gina knew that when liquids are warmer, they evaporate faster. So, she wondered if she could make her bubbles las... | 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, Gina investigated whether cooling bubble solution affects bubbles. The bottles that were at room temperature were not cooled down. So, they were part of a control group. | |
Select the mammal below. | [
"catfish",
"gray wolf"
] | 1 | Mammals have hair or fur and feed their young milk. A red kangaroo is an example of a mammal. | closed choice | grade2 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A catfish is a fish. It lives underwater. It has fins, not limbs.
A gray wolf is a mammal. It has fur and feeds its young milk. | |
Not supported with pagination yet | What is the mass of an eraser? | [
"38 kilograms",
"38 grams"
] | 1 | Select the better estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose metric 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 metric units, mass may be written with units of grams or kilograms.
There... | The better estimate for the mass of an eraser is 38 grams.
38 kilograms is too heavy. |
What is the probability that a cat produced by this cross will be homozygous dominant for the fur length gene? | [
"0/4",
"4/4",
"3/4",
"1/4",
"2/4"
] | 1 | 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 long fur (f) is recessive to the allele for short fur (F).
This Punnett square shows a cross between two cats. | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate probabilities of offspring types | Offspring genotypes: homozygous or heterozygous?
How do you determine whether an organism is homozygous or heterozygous for a gene? Look at the alleles in the organism's genotype for that gene.
An organism with two identical alleles for a gene is homozygous for that gene.
If both alleles are dominant, the organism is h... | ||
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 1 | 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 north pole of one magnet is closest to the north pole of the other magnet. Poles that are the same repel. So, these magnets will repel each other. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
these - tomato | [
"tint",
"tender"
] | 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 tint is between the guide words these - tomato, it would be found on that page. | |
Not supported with pagination yet | Which tense does the sentence use?
The voyage lasted for several months. | [
"future tense",
"present tense",
"past tense"
] | 2 | closed choice | grade5 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in past tense. You can tell because it uses a past-tense verb, lasted. The verb ends in -ed and tells you about something that has already happened. | |
Which solution has a higher concentration of green particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 1 | The diagram below is a model of two solutions. Each green ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the green particles represent the solute. To figure out which solution has a higher concentration of green particles, look at both the number of green particles and the volume of the solvent in each container.
Use the concentration formula to find the number of green particles per millilit... | |
What is the capital of Colorado? | [
"Carson City",
"Colorado Springs",
"Baltimore",
"Denver"
] | 3 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Denver is the capital of Colorado. | |||
Not supported with pagination yet | Which is a compound sentence? | [
"The tailor measures the length of the pant leg.",
"The captain saw storm clouds, so he steered the ship back to shore."
] | 1 | closed choice | grade5 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple or compound? | A simple sentence is a sentence with only one subject and predicate.
The pitcher threw the ball to first base.
A compound sentence is two simple sentences joined by a comma and a conjunction such as and, but, or, or so.
The pitcher threw the ball, and the batter hit it.
Some simple sentences have a compound subject or ... | The second sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction so.
The captain saw storm clouds, so he steered the ship back to shore. | |
Not supported with pagination yet | How long does it take to sing the ABC song? | [
"22 seconds",
"22 minutes"
] | 0 | Select the better estimate. | closed choice | grade2 | natural science | units-and-measurement | Units and measurement | Choose units of time | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that the bus leaves in 7. You might be thinking, 7 what? Does the bus leave in 7 minutes? 7 seconds?
The number 7 on its own does not give you much information about when the... | The better estimate for how long it takes to sing the ABC song is 22 seconds.
22 minutes is too slow. |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
The headline read: "Smart Phones Becoming Big Brother." | [
"literature",
"a song"
] | 0 | closed choice | grade9 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion Big Brother is literature.
George Orwell's novel 1984 focuses on a totalitarian society in which the citizens are frequently reminded that their leader, Big Brother, is always watching.
The allusion Big Brother means a threatening power that monitors all aspects of people's lives. | |
Which state is highlighted? | [
"Illinois",
"Wisconsin",
"South Dakota",
"Minnesota"
] | 1 | closed choice | grade5 | social science | geography | States | Identify states of the Midwest | This state is Wisconsin. | |||
Not supported with pagination yet | What information supports the conclusion that Jared acquired this trait? | [
"Jared likes to look at butterflies and beetles.",
"Jared learned to identify insects by reading many books about insects."
] | 1 | Read the description of a trait.
Jared is good at identifying insects. | 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.... | |
What can Jayla and Shelley trade to each get what they want? | [
"Shelley can trade her broccoli for Jayla's oranges.",
"Jayla can trade her tomatoes for Shelley's sandwich.",
"Shelley can trade her almonds for Jayla's tomatoes.",
"Jayla can trade her tomatoes for Shelley'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.
Jayla and Shelley open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Jayla wanted ... | closed choice | grade6 | social science | economics | Basic economic principles | Trade and specialization | Jayla wanted broccoli in her lunch and Shelley was hoping for tomatoes. Look at the labeled part of the images.
Jayla has tomatoes. Shelley 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 | What information supports the conclusion that Betty acquired this trait? | [
"Betty is most interested in plant biology.",
"Betty learned biology by doing experiments."
] | 1 | Read the description of a trait.
Betty knows a lot about biology. | 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 | Using only these supplies, which question can Becky investigate with an experiment? | [
"Do small rocks or large rocks skip more times when thrown across the river?",
"Do round rocks or flat rocks skip more times when thrown across the river?",
"Do rocks skip more times when thrown across a river or across a pond?"
] | 0 | Becky likes to skip rocks at the river. She notices that some of the rocks she throws skip off the surface of the water many times, while others skip once and then sink. She wonders what factors affect how well rocks skip on the water. So, she decides to design an experiment. She has the following supplies available:
1... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Which material is this statue made of? | [
"rock",
"cardboard"
] | 0 | closed choice | grade3 | natural science | physics | Materials | Identify materials in objects | A material is a type of matter. Wood, glass, metal, and plastic are common materials. | Look at the picture of the statue.
The statue is made of rock.
Stone and rock mean the same thing. You might hear people say "stone" instead of "rock" when they are talking about statues or countertops. | ||
Not supported with pagination yet | Based on this information, what is Bolt's phenotype for the coat pattern trait? | [
"solid coloring",
"AA"
] | 0 | In a group of cows, some individuals have solid coloring and others have white spots. In this group, the gene for the coat pattern trait has two alleles. The allele A is for solid coloring, and the allele a is for white spots.
Bolt, a cow from this group, has solid coloring. Bolt has two alleles for solid coloring. | 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 phenotype for a trait is its observable version of that trait. Bolt's observable version of the coat pattern trait is solid coloring. So, Bolt's phenotype for the coat pattern trait is solid coloring. |
What is the capital of Kansas? | [
"Tallahassee",
"Topeka",
"Missoula",
"Indianapolis"
] | 1 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Midwest | Topeka is the capital of Kansas. | |||
Which trait did Priscacara have? Select the trait you can observe on the fossil. | [
"a long fin along its back",
"a mostly silver body"
] | 0 | This picture shows a fossil of an ancient animal called Priscacara.
In some places, large numbers of Priscacara fossils have been found near each other. This suggests that Priscacara lived in groups. | closed choice | grade3 | natural science | earth-science | Fossils | Compare fossils to modern organisms | The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's activiti... | ||
Not supported with pagination yet | Which tense does the sentence use?
At the party, the sisters danced together. | [
"past tense",
"present tense",
"future tense"
] | 0 | closed choice | grade2 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in past tense. You can tell because it uses a past-tense verb, danced. The verb ends in -ed and tells you about something that has already happened. | |
Not supported with pagination yet | Which sentence states a fact? | [
"Spinach tastes worse than any other vegetable.",
"The spinach plant is native to Asia."
] | 1 | closed choice | grade5 | language science | writing-strategies | Developing and supporting arguments | Distinguish facts from opinions | A fact is something that can be proved to be true.
The month of July has more days than the month of June.
This is a fact. It can be proved by looking at a calendar and counting the number of days in each month.
An opinion is something that a person believes, thinks, or feels. An opinion cannot be proved true.
July is ... | The first sentence states a fact.
The spinach plant is native to Asia.
It can be proved by looking up information about spinach.
The second sentence states an opinion.
Spinach tastes worse than any other vegetable.
Worse shows what a person believes, thinks, or feels. Another person might have a different opinion about... | |
Not supported with pagination yet | Which sentence states a fact? | [
"During the Civil War, Frederick Douglass spoke to President Abraham Lincoln about the treatment of African American soldiers.",
"Of all those who fought to put an end to slavery in America, the writer and abolitionist Frederick Douglass had the greatest influence."
] | 0 | closed choice | grade6 | language science | writing-strategies | Developing and supporting arguments | Distinguish facts from opinions | A fact is something that can be proved by research or observation.
Napoleon Bonaparte was shorter than King Louis XVI.
The statement above is a fact. The statement can be proved by researching the height of each man and comparing them.
An opinion is something that a person believes, thinks, or feels. An opinion cannot ... | The second sentence states a fact.
During the Civil War, Frederick Douglass spoke to President Abraham Lincoln about the treatment of African American soldiers.
It can be proved by reading Frederick Douglass's autobiography.
The first sentence states an opinion.
Of all those who fought to put an end to slavery in Ameri... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
How do I know that Polly is the most intelligent person in our geometry class? I know because she's so smart. | [
"guilt by association: a negative association intended to discredit someone or something",
"circular reasoning: an argument that supports a claim with the claim itself"
] | 1 | closed choice | grade8 | language science | writing-strategies | Developing and supporting arguments | Classify logical fallacies | A strong argument uses valid reasoning and logic in support of a claim. When an argument or claim introduces irrelevant information or misrepresents the issues at hand, it may be committing a logical fallacy. Logical fallacies can hurt a writer's credibility and can lead readers to draw false conclusions.
A logical fal... | The text argues that Polly is intelligent because she's smart. However, the "evidence" is just a restatement of the claim itself. This illustrates a type of logical fallacy known as circular reasoning. | |
Identify the question that Jason's experiment can best answer. | [
"Do steel nails rust in fewer days when submerged in a large volume of liquid compared to a small volume?",
"Do steel nails take fewer days to rust in water compared to vinegar?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Jason put one two-inch steel nail into each of six test tubes. He added water to three of the test tubes and vinegar to the other three. In each test tube, he completely covered the nail with the same volume of liquid. ... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Not supported with pagination yet | What is the mass of a full bag of groceries? | [
"9 tons",
"9 ounces",
"9 pounds"
] | 2 | Select the best estimate. | closed choice | grade4 | 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 full bag of groceries is 9 pounds.
9 ounces is too light and 9 tons is too heavy. |
What is the capital of South Dakota? | [
"Bismarck",
"Lansing",
"Sioux Falls",
"Pierre"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Pierre is the capital of South Dakota. | |||
Select the amphibian below. | [
"woodpecker",
"tiger salamander",
"whale shark",
"ostrich"
] | 1 | Amphibians have moist skin and begin their lives in water.
Amphibians are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A green tree frog is an example of an amphibian. | 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 tiger salamander is an amphibian. It has moist skin and begins its life in water.
Tiger salamanders often live in underground burrows.
A whale shark is a fish. It lives underwater. It has fins, not limbs.
Whale sharks are the largest fish in the world! Adult whale sharks can weigh over 21 tons—as much as seven elepha... | |
Select the amphibian below. | [
"barking tree frog",
"ostrich"
] | 0 | Amphibians have moist skin and begin their lives in water. A common toad is an example of an amphibian. | closed choice | grade2 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | An ostrich is a bird. It has feathers, two wings, and a beak.
A barking tree frog is an amphibian. It has moist skin and begins its life in water. | |
Which of the following could Juan's test show? | [
"how steady a parachute with a 1 m vent was at 200 km per hour",
"if the spacecraft was damaged when using a parachute with a 1 m vent going 200 km per hour",
"whether a parachute with a 1 m vent would swing too much at 400 km per hour"
] | 0 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade8 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Select the organism in the same genus as the Eurasian beaver. | [
"Castor fiber",
"Ovis canadensis",
"Lontra canadensis"
] | 0 | This organism is a Eurasian beaver. Its scientific name is Castor fiber. | 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 Eurasian beaver's scientific name is Castor fiber. The first word of its scientific name is Castor.
Ovis canadensis is in the genus Ovis. The first word of its scientific name is Ovis. So, Ovis canadensis and Castor fiber are not in the same genus.
Lontra canadensis is in the genus Lontra. The first word of its scien... | |
Does this passage describe the weather or the climate? | [
"climate",
"weather"
] | 0 | Figure: Chesapeake Bay.
Unionville is a small town near Chesapeake Bay in Maryland. Rain is common there during June, July, and August.
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 | 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.
Unionville is a small town near Chesapeake Bay in Maryland. Rain is common there during June, July, and August.
The underlined part of the passage tells you about the usual pattern of precipitation in Unionville. This passage does not describe what the weather is like on a particular day. So... | |
Which of the following could Maura's test show? | [
"whether producing more insulin would help the bacteria grow faster",
"whether different types of bacteria would need different nutrients to produce insulin",
"whether she added enough nutrients to help the bacteria produce 20% more insulin"
] | 2 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | 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 | Complete the sentence so that it uses personification.
Molly finally found her phone () under the bed. | [
"hiding",
"missing"
] | 0 | closed choice | grade9 | language science | writing-strategies | Creative techniques | Use personification | Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point.
The trees danced in the wind.
The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t... | Complete the sentence with the word hiding. It describes the phone as if it were a person who is hiding. | |
Not supported with pagination yet | Select the elementary substance. | [
"fluoromethane (CH3F)",
"copper (Cu)",
"hydrogen sulfide (H2S)"
] | 1 | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Identify 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... | Look at the chemical formula for each substance, and count the number of symbols in the formula. Then, decide if the substance is an elementary substance. The chemical formula for fluoromethane contains three symbols: C for carbon, H for hydrogen, and F for fluorine. So, fluoromethane is made of three chemical elements... | |
Which country is highlighted? | [
"The Bahamas",
"Haiti",
"Cuba",
"Dominica"
] | 1 | closed choice | grade6 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Haiti.
Does Haiti have any territorial disputes?
Haiti claims to own Navassa Island, which is a disputed territory. In other words, multiple countries or groups claim that the area rightfully belongs to them.
Navassa Island is also claimed by the United States. The United States claimed the island in 18... | |||
Select the organism in the same species as the bobcat. | [
"Felis silvestris",
"Felis margarita",
"Lynx rufus"
] | 2 | This organism is a bobcat. Its scientific name is Lynx rufus. | 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 bobcat's scientific name is Lynx rufus.
Felis margarita does not have the same scientific name as a bobcat. So, Lynx rufus and Felis margarita are not in the same species.
Lynx rufus has the same scientific name as a bobcat. So, these organisms are in the same species.
Felis silvestris does not have the same scientif... | |
Which of the following could Anita's test show? | [
"if the blade guards would break in a crash",
"how much the drone weighed with the blade guards",
"if adding the blade guards made the drone fly poorly"
] | 2 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | 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 | Which change best matches the sentence?
A rock from outer space hits Earth's surface. | [
"landslide",
"erosion",
"meteorite crash"
] | 2 | closed choice | grade3 | natural science | earth-science | Earth events | Classify changes to Earth's surface II | |||
Not supported with pagination yet | Complete the statement. Assume that the book's mass did not change.
The gravitational potential energy stored between the book and Earth () as the book fell toward the ground. | [
"decreased",
"stayed the same",
"increased"
] | 0 | Read the text about an object in motion.
Harold knocked a book off a bookshelf. The book fell to the ground. | closed choice | grade7 | natural science | physics | Kinetic and potential energy | Identify changes in gravitational potential energy | Gravitational potential energy is stored between any two objects. So, for every object on or near Earth, there is gravitational potential energy stored between the object and Earth.
The amount of gravitational potential energy stored between an object and Earth depends on the mass of the object. The amount of gravitati... | Think about how the distance between the book and the center of Earth changed.
The ground is lower than the bookshelf. As the book fell toward the ground, the distance between the book and the center of Earth decreased. So, the gravitational potential energy stored between the book and Earth decreased as the book fell ... |
Which of these states is farthest west? | [
"New Mexico",
"Vermont",
"Tennessee",
"Florida"
] | 0 | closed choice | grade4 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. New Mexico is farthest west. | ||
What can Belle and Martha trade to each get what they want? | [
"Martha can trade her broccoli for Belle's oranges.",
"Belle can trade her tomatoes for Martha's broccoli.",
"Martha can trade her almonds for Belle's tomatoes.",
"Belle can trade her tomatoes for Martha's carrots."
] | 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.
Belle and Martha open their lunch boxes in the school cafeteria. Neither Belle nor Martha got everything that they wanted. The ta... | closed choice | grade8 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Belle wants broccoli. Martha 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. | ||
Not supported with pagination yet | What does this Works Cited entry indicate about the cited work?
Poniewozik, James. "TV Makes a Too-Close Call." Time 20 Nov. 2000: 70–71. Print. | [
"It is a book.",
"It appears on pages 70–71.",
"Time is the publisher."
] | 1 | closed choice | grade11 | language science | reference-skills | Research skills | Understand a Works Cited entry (MLA 7th edition) | When writing research papers, you will often be asked to follow a particular style guide for your citations. One popular style guide is the Modern Language Association (MLA) Handbook.
Below are the basic formats for some common types of Works Cited entries. Consult the MLA Handbook for a complete list.
Books:
Format | ... | Look closely at the Works Cited entry:
Poniewozik, James. "TV Makes a Too-Close Call." Time 20 Nov. 2000: 70–71. Print.
You can tell that the cited work appears on pages 70–71 by looking at the page numbers, which appear after the date of publication. | |
Not supported with pagination yet | Which text uses the word factoid in its traditional sense? | [
"As a geneticist, Camille enjoys watching science documentaries and sharing various factoids she's learned with her colleagues.",
"As a geneticist, Camille dislikes many popular sci-fi movies because they often present audiences with factoids that misrepresent her field."
] | 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 factoid in its traditional sense: something made up presented as a true fact.
As a geneticist, Camille dislikes many popular sci-fi movies because they often present audiences with factoids that misrepresent her field.
The second text uses factoid in its nontraditional sense: a trivial but true fact... | |
Not supported with pagination yet | Which correctly shows the title of a movie? | [
"***Max Keeble's Big Move***",
"\"Max Keeble's Big Move\""
] | 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" | A movie should be in italics.
The correct title is **Max Keeble's Big Move**. | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Best Wishes,\nBrenda",
"Best wishes,\nBrenda"
] | 1 | closed choice | grade4 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The second closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | Using only these supplies, which question can Katy investigate with an experiment? | [
"Do candles with thick wicks or with thin wicks produce more smoke?",
"Do scented candles or unscented candles produce more smoke?",
"Do large candles or small candles produce more smoke?"
] | 0 | Katy is burning some new candles. She notices that they produce different amounts of smoke. She wonders what factors affect how much smoke a candle produces. So, she decides to design an experiment. She has the following supplies available:
two large unscented candles with thick wicks
two large unscented candles with t... | 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... | |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 1 | Figure: Umbria.
On summer afternoons, the sky in the Umbria region of Italy is often filled with large white clouds.
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 | 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.
On summer afternoons, the sky in the Umbria region of Italy is often filled with large white clouds.
This passage tells you about the usual pattern of cloud cover in Umbria. This passage does not describe what the weather is like on a particular day. So, this passage describes the climate. |
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.