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Not supported with pagination yet | Which is a run-on sentence? | [
"Damon and his brother exercise, they run on the track.",
"Amazes everyone around him."
] | 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... | Damon and his brother exercise, they run on the track is a run-on sentence. It has two sentences that are joined by just a comma: Damon and his brother exercise and They run on the track. | |
Not supported with pagination yet | What information supports the conclusion that Austen inherited this trait? | [
"Austen's mother has blue eyes. She passed this trait down to Austen.",
"Austen likes to wear a blue sweater to match his blue eyes."
] | 0 | Read the description of a trait.
Austen 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.... | |
What is the name of the colony shown? | [
"Florida",
"Maine",
"New Hampshire",
"Connecticut"
] | 3 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Connecticut. | |||
Which of these states is farthest west? | [
"Idaho",
"South Carolina",
"Louisiana",
"Florida"
] | 0 | closed choice | grade2 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. Idaho is farthest west. | ||
Which of these states is farthest west? | [
"Massachusetts",
"Maine",
"Utah",
"South Dakota"
] | 2 | closed choice | grade5 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the west arrow is pointing. Utah is farthest west. | ||
Not supported with pagination yet | What information supports the conclusion that Diane inherited this trait? | [
"Diane and her mother both have short hair.",
"Diane's parents were born with wavy hair. They passed down this trait to Diane."
] | 1 | Read the description of a trait.
Diane has wavy hair. | closed choice | grade5 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Which of the following organisms is the producer in this food web? | [
"pine vole",
"bolete fungus",
"persimmon tree",
"gray fox"
] | 2 | Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem. | closed choice | grade7 | natural science | biology | Ecological interactions | Interpret food webs I | A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each food web sho... | Producers do not eat other organisms. So, in a food web, producers do not have arrows pointing to them from other organisms.
The gray fox has arrows pointing to it, so it is not a producer.
The silver maple does not have any arrows pointing to it. So, the silver maple is a producer.
The pine vole has arrows pointing to... | |
Not supported with pagination yet | Based on this information, what is Abigail's genotype for the albinism gene? | [
"Aa",
"not having albinism"
] | 0 | This passage describes the albinism trait in rats:
In a group of rats, some individuals have albinism and others do not. In this group, the gene for the albinism trait has two alleles. The allele A is for not having albinism, and the allele a is for having albinism.
Abigail, a rat from this group, does not have albini... | closed choice | grade8 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's genotype for a gene is its combination of alleles for that gene. Abigail has one allele for not having albinism (A) and one allele for having albinism (a). So, Abigail's genotype for the albinism gene is Aa. |
Is soapstone a mineral or a rock? | [
"rock",
"mineral"
] | 0 | Soapstone has the following properties:
slippery
solid
found in nature
no fixed crystal structure
made mostly of talc
not made by organisms | closed choice | grade8 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a fixed cry... | The properties of soapstone match the properties of a rock. So, soapstone is a rock. | |
Not supported with pagination yet | What is the mass of an eraser? | [
"36 kilograms",
"36 grams"
] | 1 | Select the better estimate. | closed choice | grade5 | 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 36 grams.
36 kilograms is too heavy. |
Does this passage describe the weather or the climate? | [
"weather",
"climate"
] | 0 | Figure: Yorkshire Dales.
Yorkshire Dales is a National Park in England. The winds there were blowing from the west last week. Winds that blow from the west are called westerlies.
Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade6 | natural science | earth-science | Weather and climate | Weather and climate around the world | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the passage carefully.
Yorkshire Dales is a National Park in England. The winds there were blowing from the west last week. Winds that blow from the west are called westerlies.
The underlined part of the passage tells you about the wind direction in Yorkshire Dales last week. This passage describes the atmosphere ... | |
Which of these continents does the prime meridian intersect? | [
"Asia",
"North America",
"Antarctica"
] | 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 prime meridian is the line at 0° longitude. It intersects Antarctica. It does not intersect Asia or North America. | ||
Not supported with pagination yet | Select the mixture. | [
"coins",
"salt"
] | 0 | closed choice | grade2 | natural science | physics | Mixtures | Identify mixtures | A pure substance is made of only one type of matter.
A mixture is made of two or more types of matter mixed together. | ||
Not supported with pagination yet | What does the idiom in this text suggest?
Mr. and Mrs. Randall usually see eye to eye, but not when it comes to the controversial mayoral race. | [
"Mr. and Mrs. Randall usually agree.",
"Mr. and Mrs. Randall are not politically active."
] | 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.
An idiom is an expression that cannot be understood literally. Its meaning must be learned.
The assignment was a piece of cake. | The text uses an idiom, an expression that cannot be understood literally.
The idiom see eye to eye suggests that Mr. and Mrs. Randall usually agree. When you see eye to eye with someone, you share their opinion. | |
Not supported with pagination yet | Complete the statement. Assume that the mole's mass did not change.
The gravitational potential energy stored between the mole and Earth () as the mole dug toward the surface. | [
"increased",
"stayed the same",
"decreased"
] | 0 | Read the text about an animal in motion.
A mole dug a path from its underground burrow directly to the surface of the ground above its burrow. | 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 mole and the center of Earth changed.
The surface of the ground is higher than the underground burrow. As the mole dug toward the surface, the distance between the mole and the center of Earth increased. So, the gravitational potential energy stored between the mole and Earth in... |
Select the fish below. | [
"flamingo",
"goldfish"
] | 1 | Fish live underwater. They have fins, not limbs. A salmon is an example of a fish. | closed choice | grade2 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A goldfish is a fish. It lives underwater. It has fins, not limbs.
A flamingo is a bird. It has feathers, two wings, and a beak. | |
Not supported with pagination yet | How long is a long-distance running race? | [
"20 miles",
"20 yards",
"20 feet",
"20 inches"
] | 0 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose customary units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | The best estimate for the length of a long-distance running race is 20 miles.
20 inches, 20 feet, and 20 yards are all too short. |
Not supported with pagination yet | Which text uses the word can in its traditional sense? | [
"Debbie can type using a keyboard with a QWERTY layout, but she prefers the Dvorak layout. The two keyboards have different arrangements of letters and symbols.",
"If Debbie prefers a keyboard with the Dvorak layout, she can use mine. In my opinion, it's faster than typing on a keyboard with a QWERTY layout."
] | 0 | closed choice | grade10 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The first text uses can in its traditional sense: to have the ability to.
Debbie can type using a keyboard with a QWERTY layout, but she prefers the Dvorak layout. The two keyboards have different arrangements of letters and symbols.
The second text uses can in its nontraditional sense: to have permission to.
If Debbie... | |
Which country is highlighted? | [
"the Federated States of Micronesia",
"New Zealand",
"Australia",
"Papua New Guinea"
] | 3 | closed choice | grade8 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Papua New Guinea.
Why does Papua New Guinea share its island with another country?
Papua New Guinea takes up the eastern half of the island of New Guinea. The western half is part of Indonesia, an Asian country.
Beginning in the 17 th century, several countries took control of different parts of the isl... | |||
Not supported with pagination yet | Using only these supplies, which question can Desmond investigate with an experiment? | [
"Does a big toy car go down the wooden ramp faster than a small toy car?",
"Do toy cars with plastic wheels go faster down the cardboard ramp than toy cars with metal wheels?",
"Do toy cars go faster down the ramp made of wood or the ramp made of cardboard?"
] | 2 | Desmond and his sister are building ramps to race their toy cars down. Desmond notices that the cars go down some of the ramps faster than others. He wonders what factors affect the cars' speed. So, he decides to design an experiment. He has the following supplies available:
two identical toy cars
a wooden ramp three f... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Not supported with pagination yet | What does the allusion in this text suggest?
Erik seems to have the Midas touch. Without any special experience or training, he launched a thriving business and then established a well-respected charity. | [
"Erik is successful at all that he does.",
"Erik is lazy and uninformed."
] | 0 | closed choice | grade8 | 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 the Midas touch suggests that Erik is successful at all that he does. In Greek mythology, King Midas has the power to turn anything he touches into gold, easily creating value from nothing. | |
Not supported with pagination yet | What do these two changes have in common?
adding dish soap to water in a sink
butter melting on a hot day | [
"Both are chemical changes.",
"Both are caused by cooling.",
"Both are only physical changes.",
"Both are caused by heating."
] | 2 | 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.
Adding dish soap to water in a sink is a physical change. Bubbles may appear if air gets trapped in the soapy water, but a different type of matter does not form.
Butter melting on a hot day is a change of state. So, it is a physical change. The butter changes from solid to liquid, but ... | |
What is the capital of Kentucky? | [
"Portland",
"Lexington",
"Frankfort",
"Kansas City"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Frankfort is the capital of Kentucky. | |||
Not supported with pagination yet | Select the bird. | [
"woodpecker",
"green tree frog",
"African bullfrog",
"sea turtle"
] | 0 | closed choice | grade5 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds have feathers, two wings, and a beak. | A sea turtle is a reptile. It has scaly, waterproof skin.
Sea turtles live in the water, but they lay their eggs on land.
A woodpecker is a bird. It has feathers, two wings, and a beak.
Woodpeckers have strong beaks. They use their beaks to drill into wood to hunt for food.
A green tree frog is an amphibian. It has moi... | |
What is the greater flamingo's scientific name? | [
"Phoenicopterus roseus",
"Phoenicopterus andinus"
] | 0 | The greater flamingo, like other flamingos, often has pink feathers. The greater flamingo's scientific name refers to its pink, or rose-like, color. | closed choice | grade4 | natural science | biology | Scientific names | Origins of scientific names | When a scientist identifies a new organism, he or she chooses its scientific name.
Sometimes, an organism is named after the place where it was first found. Other times, an organism is named after the scientist who first identified it. Or, the scientific name might describe the organism's physical traits.
Many of the w... | This organism's scientific name refers to its pink or rose-like color.
The word roseus refers to the word rose. So, the greater flamingo's scientific name is Phoenicopterus roseus. | |
What is the capital of Connecticut? | [
"Juneau",
"Hartford",
"Des Moines",
"Bridgeport"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Northeast | Hartford is the capital of Connecticut. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
The more acute the experience the less articulate its expression.
—Harold Pinter, "Writing for the Theatre" | [
"oxymoron",
"antithesis"
] | 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 antithesis, the contrasting of opposing ideas within a parallel grammatical structure.
Pinter contrasts two parallel phrases, more acute the experience and less articulate its expression. | |
Not supported with pagination yet | Which figure of speech is used in this text?
It's an open secret that Owen is writing a book based on his experiences living in Singapore. He never talks about it, but almost all his friends know. | [
"euphemism",
"oxymoron"
] | 1 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses an oxymoron, a joining of two seemingly contradictory terms.
Open secret is a contradiction, because open describes something that is freely or publicly known, and a secret is hidden. | |
Which animal's skin is also adapted for survival in cold places? | [
"naked mole rat",
"musk ox"
] | 1 | Polar bears live in and around the cold Arctic Ocean. The 's skin is adapted to help the animal survive in cold places.
Figure: polar bear. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: skins and body coverings | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help an animal... | Look at the picture of the polar bear.
The polar bear has skin with thick fur on top and a thick layer of fat underneath it. Its skin is adapted for survival in cold places. The polar bear uses its fur and fat to keep warm in cold weather.
Now look at each animal. Figure out which animal has a similar adaptation.
The m... | |
What is the capital of Nevada? | [
"Boise",
"Reno",
"Phoenix",
"Carson City"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Carson City is the capital of Nevada. | |||
Not supported with pagination yet | Would you find the word pink on a dictionary page with the following guide words?
perform - prison | [
"yes",
"no"
] | 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 pink is between the guide words perform - prison, it would be found on that page. | |
Which solution has a higher concentration of yellow particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 0 | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. | closed choice | grade7 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the yellow particles represent the solute. To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
Use the concentration formula to find the number of yellow particles per mill... | |
Not supported with pagination yet | Which tense does the sentence use?
In the darkness, Elena strained her eyes. | [
"past tense",
"future tense",
"present tense"
] | 0 | 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 past tense. You can tell because it uses a past-tense verb, strained. The verb ends in -ed and tells you about something that has already happened. | |
Not supported with pagination yet | Which is a compound sentence? | [
"Mr. Crawford sent the email yesterday, but no one received it.",
"The tailor measures the length of the pant leg."
] | 0 | 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 first sentence is the compound sentence. It is made up of two simple sentences joined by a comma and the conjunction but.
Mr. Crawford sent the email yesterday, but no one received it. | |
Not supported with pagination yet | What kind of sentence is this?
Martin campaigned tirelessly in support of his neighbor's bid for elective office. | [
"declarative",
"interrogative",
"exclamatory"
] | 0 | closed choice | grade10 | 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 always ends with a period.
The nurse told Mr. Abrams to roll up his sleeve so that she could check his blood pressure.
An imperative sentence makes a request or a demand and usually ends with a period. If a demand shows strong feeling, it can ... | The sentence is a statement and ends with a period. It is a declarative sentence. | |
Which country is highlighted? | [
"Jamaica",
"Cuba",
"Dominica",
"the Dominican Republic"
] | 2 | closed choice | grade8 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is Dominica. | |||
Which of the following could Tyrone's test show? | [
"if the weather station would work when the temperature was 50°C",
"how well the weather station would work when it was windy"
] | 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 | 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... | ||
What is the name of the colony shown? | [
"Alabama",
"Maryland",
"Massachusetts",
"Virginia"
] | 2 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Massachusetts.
The Massachusetts Colony included land that would later become the state of Maine. Maine was never its own colony. | |||
Not supported with pagination yet | Based on this information, what is this tomato plant's genotype for the fruit texture gene? | [
"fuzzy fruit",
"ff"
] | 1 | In a group of tomato plants, some individuals have smooth fruit and others have fuzzy fruit. In this group, the gene for the fruit texture trait has two alleles. The allele F is for smooth fruit, and the allele f is for fuzzy fruit.
A certain tomato plant from this group has fuzzy fruit. This plant has two alleles for ... | 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. The tomato plant has two alleles for fuzzy fruit (f). So, the plant's genotype for the fruit texture gene is ff. |
Not supported with pagination yet | Select the one true statement. | [
"The cell wall breaks down sugar to release energy that a plant cell can use.",
"The Golgi packages proteins and other substances and directs them to different parts of an animal cell.",
"The cell membrane of a plant cell contains the master plan for cell activities and cell development."
] | 1 | closed choice | grade7 | natural science | biology | Cells | Compare cells and cell parts | |||
Not supported with pagination yet | Which type of sentence is this?
Emmet took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | [
"simple",
"complex",
"compound",
"compound-complex"
] | 0 | closed choice | grade10 | 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.
Emmet took several incredible panoramic photographs of the sweeping view from the top of Table Mountain. | |
Identify the question that the students' experiment can best answer. | [
"Do balloons kept in freezers have more mass than balloons kept at room temperature?",
"Do balloons get smaller when they are kept in freezers or at room temperature?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
The students in a physics class inflated 30 identical balloons to the same size. The students placed half of the balloons in freezers at 0°F and left half of the balloons at room temperature, which was 68°F. Three hours... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Not supported with pagination yet | Which correctly shows the title of a poem? | [
"\"Nothing Gold Can Stay\"",
"\"Nothing gold Can Stay\""
] | 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 correct title is "Nothing Gold Can Stay." | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Best Regards,\nSandra",
"Best regards,\nSandra"
] | 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 | Complete the sentence.
Deep-frying chicken is a (). | [
"chemical change",
"physical change"
] | 0 | closed choice | grade5 | natural science | chemistry | Physical and chemical change | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form new molecules. The types of molecules in matter before an... | Deep-frying chicken is a chemical change. The heat causes the matter in the chicken to change. Cooked chicken and raw chicken are different types of matter. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 0 | Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart. | closed choice | grade3 | 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. | |
Which ocean is highlighted? | [
"the Pacific Ocean",
"the Indian Ocean",
"the Arctic Ocean",
"the Atlantic Ocean"
] | 1 | closed choice | grade7 | social science | geography | Physical Geography | Oceans and continents | Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean. | This is the Indian Ocean. | ||
Not supported with pagination yet | How long is a paper clip? | [
"27 kilometers",
"27 meters",
"27 millimeters"
] | 2 | Select the best estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of a paper clip is 27 millimeters.
27 meters and 27 kilometers are both too long. |
Not supported with pagination yet | What do these two changes have in common?
a copper statue turning green
a piece of apple turning brown | [
"Both are chemical changes.",
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are only physical changes."
] | 0 | 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.
A copper statue turning green is a chemical change. The copper reacts with oxygen in the air. This reaction forms a different type of matter called copper oxide. The copper oxide is green.
A piece of apple turning brown is a chemical change. The apple reacts with oxygen in the air and t... | |
What is the expected ratio of offspring with regular leaves to offspring with potato leaves? Choose the most likely ratio. | [
"0:4",
"3:1",
"1:3",
"4:0",
"2:2"
] | 3 | This passage describes the leaf type trait in tomato plants:
Tomato leaves come in many types, including regular leaves and potato leaves. Regular leaves are small and have jagged edges. Potato leaves are large and have smooth edges.
In a group of tomato plants, some individuals have regular leaves and others have pota... | closed choice | grade8 | natural science | biology | Genes to traits | Use Punnett squares to calculate ratios of offspring types | Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the trait to a... | To determine how many boxes in the Punnett square represent offspring with regular leaves or potato leaves, consider whether each phenotype is the dominant or recessive allele's version of the leaf type trait. The question tells you that the L allele, which is for regular leaves, is dominant over the l allele, which is... | |
Not supported with pagination yet | Complete the statement.
Sodium hydroxide is (). | [
"an elementary substance",
"a compound"
] | 1 | Sodium hydroxide is used to help produce paper and bars of soap. The chemical formula for sodium hydroxide is NaOH. | closed choice | grade8 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using chemical formulas | 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 ... | You can tell whether sodium hydroxide is an elementary substance or a compound by counting the number of atomic symbols in its chemical formula. An atomic symbol consists of either one capital letter or a capital letter followed by one or two lowercase letters.
The chemical formula for sodium hydroxide, NaOH, contains ... |
Which type of force from the woman's hand unplugs the power cord? | [
"push",
"pull"
] | 1 | A woman unplugs a power cord. Her hand applies a force to the cord, and the plug comes out of the socket. | closed choice | grade3 | natural science | physics | Force and motion | Identify pushes and pulls | A force is a push or a pull that one object applies to a second object.
The direction of a push is away from the object that is pushing.
The direction of a pull is toward the object that is pulling. | The woman's hand applies a force to the power cord and unplugs it. The direction of this force is toward the woman's hand. This force is a pull. | |
Not supported with pagination yet | How long is a long-distance running race? | [
"28 kilometers",
"28 centimeters"
] | 0 | Select the better estimate. | closed choice | grade3 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Imagine being told that a pencil is 16 long. You might be thinking, 16 what? Is the pencil 16 centimeters long? 16 meters? 16 kilometers?
The number 16 on its own does not give you much informa... | The better estimate for the length of a long-distance running race is 28 kilometers.
28 centimeters is too short. |
Not supported with pagination yet | Which tense does the sentence use?
I will trade you this book for that one. | [
"present tense",
"future tense",
"past tense"
] | 1 | closed choice | grade3 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, trade. The verb tells you about something that is going to happen. | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
Where Dylan lives, winter is the rainiest season of the year. | [
"weather",
"climate"
] | 1 | Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade4 | natural science | earth-science | Weather and climate | What's the difference between weather and climate? | The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pattern of ... | Read the text carefully.
Where Dylan lives, winter is the rainiest season of the year.
This passage tells you about the usual precipitation where Dylan lives. It does not describe what the weather is like on a particular day. So, this passage describes the climate. |
Not supported with pagination yet | Select the invertebrate. | [
"comet moth",
"European green toad",
"sparrow",
"panda"
] | 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 comet moth is an insect. Like other insects, a comet moth is an invertebrate. It does not have a backbone. It has an exoskeleton.
A sparrow is a bird. Like other birds, a sparrow is a vertebrate. It has a backbone.
A European green toad is an amphibian. Like other amphibians, a European green toad is a vertebrate. It... |
Which animal's body is better adapted for protection against a predator with sharp teeth? | [
"desert tortoise",
"fox snake"
] | 0 | Nautiluses live in the ocean. They have a hard outer shell.
The is adapted to protect itself from predators with sharp teeth. It can pull the soft parts of its body into its shell when attacked.
Figure: nautilus. | closed choice | grade4 | 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 nautilus.
The nautilus has a hard outer shell. Its body is adapted for protection against a predator with sharp teeth. The hard shell makes it difficult for predators to hurt or kill the nautilus.
Now look at each animal. Figure out which animal has a similar adaptation.
The desert tortoise h... | |
What is the capital of New Hampshire? | [
"Boston",
"Manchester",
"Norfolk",
"Concord"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Northeast | Concord is the capital of New Hampshire. | |||
Is the following statement about our solar system true or false?
Neptune's volume is more than 50 times as great as that of Earth. | [
"true",
"false"
] | 0 | 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 50 times the volume of Earth.
Then compare the result to the volume of Neptune. The volume of Neptune is 62,530 billion km^3, which is more than 54,500 billion km^3. So, Neptune's volume is more than 50 times as great as that of Earth. | |
Not supported with pagination yet | Which tense does the sentence use?
The husband and wife exercised together. | [
"present tense",
"future tense",
"past tense"
] | 2 | closed choice | grade3 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in past tense. You can tell because it uses a past-tense verb, exercised. The verb ends in -ed and tells you about something that has already happened. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
ticket - tyrant | [
"tend",
"toss"
] | 1 | closed choice | grade4 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since toss is between the guide words ticket - tyrant, it would be found on that page. | |
Not supported with pagination yet | What information supports the conclusion that Abby acquired this trait? | [
"Abby's mother speaks one language.",
"Abby learned to speak two languages in school."
] | 1 | Read the description of a trait.
Abby speaks two languages. | 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... | |
What is the capital of Tennessee? | [
"Nashville",
"Montgomery",
"Knoxville",
"Charleston"
] | 0 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Nashville is the capital of Tennessee. | |||
Not supported with pagination yet | Which is scratchier? | [
"gold nugget",
"asphalt road"
] | 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. | Scratchy is a property. A scratchy material is rough and itchy against your skin.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the asphalt road is scratchier. If you touch an asphalt road, it will feel rough and itchy. | |
Which of the following could Emmy's test show? | [
"whether different types of bacteria would need different nutrients to produce insulin",
"whether producing more insulin would help the bacteria grow faster",
"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 | What information supports the conclusion that Sophia acquired this trait? | [
"Sophia's scar was caused by an accident. She cut her leg when she was climbing a tree.",
"Some scars fade more quickly than others."
] | 0 | Read the description of a trait.
Sophia has a scar on her left leg. | closed choice | grade3 | natural science | biology | Heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Which of the following could Zeke's test show? | [
"which side of the roof got more sun over one day",
"how many solar panels could fit on each side of the roof",
"the amount of sunlight the roof would get throughout the year"
] | 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 | grade7 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Not supported with pagination yet | Select the vertebrate. | [
"hissing cockroach",
"mosquito",
"forest scorpion",
"cardinalfish"
] | 3 | Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | closed choice | grade5 | natural science | biology | Classification | Identify vertebrates and invertebrates | Vertebrates and invertebrates are both groups of animals.
A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange.
An invertebrate does not have a backb... | A mosquito is an insect. Like other insects, a mosquito is an invertebrate. It does not have a backbone. It has an exoskeleton.
Like other scorpions, a forest scorpion is an invertebrate. It does not have a backbone. It has an exoskeleton.
A cardinalfish is a fish. Like other fish, a cardinalfish is a vertebrate. It ha... |
Not supported with pagination yet | Which correctly shows the title of a movie? | [
"***The Sword in the Stone***",
"\"The Sword in the Stone\""
] | 0 | closed choice | grade3 | language science | punctuation | Formatting | Formatting titles | The title of a book, movie, play, TV show, magazine, or newspaper should be in italics. If you write it by hand, it can be underlined instead.
A Midsummer Night's Dream
The title of a poem, song, or article should be in quotation marks.
"You Are My Sunshine" | A movie should be in italics.
The correct title is **The Sword in the Stone**. | |
Not supported with pagination yet | Complete the statement.
Dichloromethane is (). | [
"an elementary substance",
"a compound"
] | 1 | Dichloromethane is used to remove caffeine from coffee beans and tea leaves. The chemical formula for dichloromethane is CH2Cl2. | closed choice | grade6 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using chemical formulas | 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 ... | You can tell whether dichloromethane is an elementary substance or a compound by counting the number of atomic symbols in its chemical formula. An atomic symbol consists of either one capital letter or a capital letter followed by one or two lowercase letters.
The chemical formula for dichloromethane, CH2 Cl2, contains... |
Which solution has a higher concentration of blue particles? | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | 1 | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the blue particles represent the solute. To figure out which solution has a higher concentration of blue particles, look at both the number of blue particles and the volume of the solvent in each container.
Use the concentration formula to find the number of blue particles per milliliter.
... | |
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
Mrs. Hutchinson is an owl, working at night and sleeping during the day. | [
"metaphor",
"simile"
] | 0 | closed choice | grade4 | 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... | Mrs. Hutchinson is an owl, working at night and sleeping during the day.
The words Mrs. Hutchinson and owl are compared without the word like or as. So, the sentence uses a metaphor. | |
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."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | closed choice | 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,... | Distance affects the magnitude of the magnetic force. When there is a greater distance between magnets, the magnitude of the magnetic force between them is smaller.
There is a greater distance between the magnets in Pair 1 than in Pair 2. So, the magnitude of the magnetic force is smaller in Pair 1 than in Pair 2. | |
Not supported with pagination yet | What is the mass of a skateboard? | [
"5 pounds",
"5 tons",
"5 ounces"
] | 0 | 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 skateboard is 5 pounds.
5 ounces is too light and 5 tons is too heavy. |
Not supported with pagination yet | Complete the sentence.
Ice crystals forming on a window is a (). | [
"chemical change",
"physical change"
] | 1 | closed choice | grade6 | 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 new molecules. The types of molecules in matter before an... | Ice crystals forming on a window is a change of state. So, it is a physical change. Water vapor in the air can change directly into ice when it touches a very cold window! A change of state from a gas to a solid is called depositing. | |
Which solution has a higher concentration of purple particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 1 | The diagram below is a model of two solutions. Each purple ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the 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 of the following could Anthony's test show? | [
"if the weather station would work when the temperature was 50°C",
"how well the weather station would work when it was windy"
] | 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 | 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... | ||
Which animal's limbs are also adapted for swimming? | [
"gerenuk",
"harbor seal"
] | 1 | Bottlenose dolphins live in the Atlantic, Pacific, and Indian Oceans. They live underwater, but come to the surface to breathe air.
The has flippers for limbs. Its limbs are adapted for swimming.
Figure: bottlenose dolphin. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
Arms, legs, flippers, and wings are different types of limbs. The type of limbs an animal has is an example of an adaptation. Animals' limbs can be adapted in different ways. For examp... | Look at the picture of the bottlenose dolphin.
The bottlenose dolphin uses its flippers to push itself through water. The flippers can also help it change direction while swimming.
Now look at each animal. Figure out which animal has a similar adaptation.
The harbor seal has flippers. Its limbs are adapted for swimming... | |
Not supported with pagination yet | Assume all other forces on Reba are balanced. Which statement describes the forces on Reba? | [
"The forces are unbalanced, so there is a net force on Reba.",
"The forces are balanced, so there is no net force on Reba."
] | 0 | Reba is sitting on a roller coaster cart as it reaches the bottom of a big loop. Earth's gravity is pulling down on Reba with a force of 600N. The seat of the cart is pushing up on Reba with a force of 1,200N. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Balanced and unbalanced forces | A force is a push or a pull that acts on an object. Every force has a direction and a magnitude, or strength. If two forces act on an object in opposite directions, the forces are called opposing forces.
When opposing forces have the same magnitude, they are balanced. If all the forces on an object are balanced, there ... | To determine if there is a net force on Reba, look at the forces:
Earth's gravity is pulling Reba down with a force of 600 N.
The seat of the cart is pushing Reba up with a force of 1,200 N.
The forces are in opposite directions, and the forces have different magnitudes: 600 N and 1,200 N. This means that the forces ar... |
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her grammar and mechanics?
Alfred Hitchcock's 1963 horror masterpiece The Birds is based on Daphne du Maurier's novella of the same name. In the film version, a quiet town in northern California is terrorized by birds, however, the ... | [
"by fixing run-on sentences",
"by fixing sentence fragments",
"by correcting verb tenses"
] | 0 | closed choice | grade11 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | During peer review, you read and respond to a fellow student's writing. While there are many methods and strategies that you can use for reviewing a text, it is generally helpful to frame your suggestions in concrete and constructive ways and to consider the following areas for revision:
Ideas and development: Does the... | The writer could best improve his or her grammar and mechanics by fixing run-on sentences.
For example, the writer could revise the underlined text.
Alfred Hitchcock's 1963 horror masterpiece The Birds is based on Daphne du Maurier's novella of the same name. In the film version, a quiet town in northern California is ... | |
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."
] | 2 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade3 | natural science | physics | Magnets | Compare strengths of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each other.
You c... | Distance affects the strength of the magnetic force. When magnets are farther apart, the magnetic force between them is weaker.
The magnets in Pair 2 are farther apart than the magnets in Pair 1. So, the magnetic force is weaker in Pair 2 than in Pair 1. | |
Which continent is highlighted? | [
"Asia",
"South America",
"Australia",
"Africa"
] | 0 | closed choice | grade4 | social science | geography | Oceans and continents | Identify oceans and continents | A continent is one of the major land masses on the earth. Most people say there are seven continents. | This continent is Asia. | ||
Not supported with pagination yet | What do these two changes have in common?
water freezing into ice
melting wax | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are chemical changes.",
"Both are caused by heating."
] | 0 | closed choice | grade7 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Water freezing into ice is a change of state. So, it is a physical change. The water changes from solid to liquid. But the ice is still made of the same type of matter as the liquid water.
Melting wax is a change of state. So, it is a physical change. The wax changes from solid to liqui... | |
Not supported with pagination yet | Based on this information, what is Cookie's genotype for the body hair gene? | [
"BB",
"a hairy body"
] | 0 | In a group of cats, some individuals have a hairy body and others have a hairless body. In this group, the gene for the body hair trait has two alleles. The allele B is for a hairy body, and the allele b is for a hairless body.
Cookie, a cat from this group, has a hairy body. Cookie has two alleles for a hairy body. | closed choice | grade7 | natural science | biology | Genes to traits | Genetics vocabulary: genotype and phenotype | All organisms have pieces of hereditary material called genes, which are passed from parents to offspring. Genes contain instructions for building the parts of an organism. An organism's genes affect its observable traits, including its appearance, its behavior, and which diseases it may have. Genes may have different ... | An organism's genotype for a gene is its combination of alleles for that gene. Cookie has two alleles for a hairy body (B). So, Cookie's genotype for the body hair gene is BB. |
Not supported with pagination yet | Which announcement is more formal? | [
"The Greenville Law Firm is so happy to tell you . . .",
"The Greenville Law Firm is pleased to announce . . ."
] | 1 | closed choice | grade11 | language science | writing-strategies | Audience, purpose, and tone | Which text is most formal? | Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is... | The second announcement is more formal. It uses more elevated language (pleased to announce). The other announcement sounds more conversational (so happy). | |
Not supported with pagination yet | Select the fish. | [
"seahorse",
"green iguana",
"green tree frog",
"bottlenose dolphin"
] | 0 | closed choice | grade5 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Fish live underwater. They have fins, not limbs. | A green 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 green iguana is a reptile. It has scaly, waterproof skin.
Iguanas are a type of lizard. Iguanas eat plants and fruit.
A seahorse is a f... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Katie and her husband met Mia for lunch at a small café around the block from her office.",
"Katie and her husband met Mia for lunch at a small café around the block from Mia's office."
] | 0 | closed choice | grade10 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The second answer choice contains a vague pronoun reference. The pronoun her could refer to Katie or Mia.
The first answer choice shows a possible correction for the vague pronoun reference. Her has been replaced with Mia's.
Katie and her husband met Mia for lunch at a small café around the block from Mia's office. | |
Not supported with pagination yet | Which type of sentence is this?
Tyler always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | [
"simple",
"complex",
"compound-complex",
"compound"
] | 3 | closed choice | grade8 | 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 compound. It is made up of two independent clauses joined by the coordinating conjunction and.
Tyler always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor. | |
Not supported with pagination yet | When was Harriet Tubman born? | [
"the 1820s",
"the 1610s",
"the 1910s",
"the 1490s"
] | 0 | closed choice | grade3 | social science | us-history | Historical figures | Harriet Tubman | Harriet Tubman was born in the 1820 s. She was born about 40 years before the Civil War. The Civil War was fought from 1861 to 1865.
During the 1820 s, slavery was still allowed. It was also spreading into new parts of the country. Many people worried that it might last forever. | ||
Not supported with pagination yet | Look at the word. Does it have a closed syllable or an open syllable?
up | [
"open",
"closed"
] | 1 | closed choice | grade2 | language science | word-study | Short and long vowels | Is the syllable open or closed? | Words are made up of syllables. Two kinds of syllables are closed and open.
A closed syllable has one vowel and ends with a consonant. It usually has a short vowel sound.
desk: short e
kit / ten: short i / short e
An open syllable ends with one vowel. It usually has a long vowel sound.
go: long o
he / ro: long e / long... | The word up ends with a consonant and has a short vowel sound. So, it has a closed syllable. | |
Not supported with pagination yet | Using only these supplies, which question can Anita investigate with an experiment? | [
"Do scented candles or unscented candles produce more smoke?",
"Do candles with thick wicks or with thin wicks produce more smoke?",
"Do large candles or small candles produce more smoke?"
] | 1 | Anita 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 ... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify questions that can be investigated with a set of materials | Experiments can be designed to answer specific questions. When designing an experiment, you must identify the supplies that are necessary to answer your question. In order to do this, you need to figure out what will be tested and what will be measured during the experiment.
Imagine that you are wondering if plants gro... | |
Not supported with pagination yet | Suppose Polly decides to buy a copy of the book. Which result would be a cost? | [
"Polly will get to keep the book as long as she wants.",
"Polly will spend money to buy the book."
] | 1 | Polly is deciding whether to buy a copy of a book or borrow it from the library. She would like to be able to keep the book as long as she wants, but buying the book would cost money. She could borrow the book for free, but she would have to return it in a few weeks. | closed choice | grade4 | social science | economics | Basic economic principles | Costs and benefits | Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you wa... | This result is a cost. It involves giving up or spending something that Polly wants or needs:
Polly will spend money to buy the book. |
Not supported with pagination yet | What do these two changes have in common?
an engine using gasoline to power a car
melting glass | [
"Both are caused by cooling.",
"Both are only physical changes.",
"Both are chemical changes.",
"Both are caused by heating."
] | 3 | closed choice | grade7 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
An engine using gasoline to power a car is a chemical change. High temperatures in the engine break the chemical bonds in the molecules of gasoline and release energy. The atoms then link together to form new molecules, such as water, carbon dioxide, and other chemicals.
Melting glass i... | |
Not supported with pagination yet | Which is a compound sentence? | [
"The average American eats three pounds of sugar each week.",
"The doctor will order supplies, or the nurse will do it."
] | 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 or.
The doctor will order supplies, or the nurse will do it. | |
Not supported with pagination yet | Which change best matches the sentence?
A river spills over its sides after a lot of rain. | [
"wildfire",
"flood",
"volcanic eruption"
] | 1 | closed choice | grade3 | natural science | earth-science | Earth events | Classify changes to Earth's surface I | |||
Not supported with pagination yet | What do these two changes have in common?
photosynthesis
cooking an egg | [
"Both are only physical changes.",
"Both are chemical changes.",
"Both are caused by cooling.",
"Both are caused by heating."
] | 1 | closed choice | grade7 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Photosynthesis is a chemical change. Plants make sugar using carbon dioxide, water, and energy from sunlight.
Cooking an egg is a chemical change. The heat causes the matter in the egg to change. Cooked egg and raw egg are different types of matter.
Step 2: Look at each answer choice.
B... | |
Not supported with pagination yet | Complete the sentence so that it uses personification.
We watched through the window as the autumn wind () the withered leaves about the yard. | [
"chased",
"scattered"
] | 0 | closed choice | grade10 | language science | writing-strategies | Creative techniques | Use personification | Personification is giving human characteristics to nonhuman things. It is a figure of speech that can be used to make writing more interesting or to emphasize a point.
The trees danced in the wind.
The word danced describes the trees as if they were people. Unlike people, however, trees can't actually dance. Instead, t... | Complete the sentence with the word chased. It describes the wind as if it were a person who was running and playing. | |
Not supported with pagination yet | Using only these supplies, which question can Tisha investigate with an experiment? | [
"Do apple slices turn brown more quickly if they are dipped in sugar or in orange juice?",
"Do slices of pear turn brown more quickly than slices of banana?",
"Do apple slices dipped in orange juice turn brown more slowly than plain apple slices?"
] | 2 | Tisha is making a fruit salad. She mixes some apple slices with orange and pineapple slices, and leaves the rest of the apple slices on the counter. A few minutes later, she notices that the apple slices on the counter have turned brown. She wonders what factors affect how quickly sliced fruit turns brown. So, she deci... | 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... | |
Which of the following could Hakim's test show? | [
"if the spacecraft was damaged when using a parachute with a 1 m vent going 200 km per hour",
"how steady a parachute with a 1 m vent was at 200 km per hour",
"whether a parachute with a 1 m vent would swing too much at 400 km per hour"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade8 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
What is the capital of Indiana? | [
"Lexington",
"Indianapolis",
"Fort Wayne",
"Los Angeles"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Midwest | Indianapolis is the capital of Indiana. |
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.