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Not supported with pagination yet | The American Civil War was fought between 1861 and 1865. What is a civil war? | [
"a war fought with words, not weapons",
"a war between people of the same country",
"a war fought only by professional soldiers",
"a war against a foreign invader"
] | 1 | closed choice | grade7 | social science | us-history | The Civil War | The Civil War: the beginning of the war | |||
Not supported with pagination yet | Which closing is correct for a letter? | [
"Your Niece,\nSandra",
"Your niece,\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 first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Aaron bought a program for the opera without realizing that it was in Russian.",
"Aaron bought a program for the opera without realizing that the program was in Russian."
] | 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 it could refer to the program or the opera.
The first answer choice shows a possible correction for the vague pronoun reference. It has been replaced with the program.
Aaron bought a program for the opera without realizing that the program was in ... | |
Which property do these three objects have in common? | [
"bouncy",
"yellow",
"flexible"
] | 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 bouncy object will bounce back from the floor if you drop it. The paper and the towel are not bouncy.
A flexible object can be folded or bent without breaking easily. All three objects are flexible.
Yellow is a color.
This color is yellow. None of ... | |
Which solution has a higher concentration of purple particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 0 | 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... | |
Not supported with pagination yet | What information supports the conclusion that Abigail inherited this trait? | [
"Both of Abigail's biological parents have naturally black hair.",
"Some people use a hair dryer to straighten their hair. But Abigail and her brothers have naturally straight hair.",
"When she was younger, Abigail wore ribbons in her naturally black hair."
] | 0 | Read the description of a trait.
Abigail has naturally black hair. | closed choice | grade7 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Which animal's neck is also adapted for reaching high branches? | [
"chital",
"bison"
] | 0 | Giraffes eat leaves and twigs. The 's neck is adapted for reaching branches that are high above the ground.
Figure: giraffe. | closed choice | grade5 | natural science | biology | Adaptations | Animal adaptations: beaks, mouths, and necks | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's neck is one example of an adaptation. Animals' necks can be adapted in different ways. For example, a large frilled neck might help an animal appear dangerous ... | Look at the picture of the giraffe.
Now look at each animal. Figure out which animal has a similar adaptation.
The chital has a long neck. Its neck is adapted for reaching high branches.
The bison has a short neck. Its neck is not adapted for reaching high branches. The bison eats mostly grass. | |
Not supported with pagination yet | Complete the statement. Assume that Duncan's mass did not change.
The gravitational potential energy stored between Duncan and Earth () as he rode the escalator. | [
"increased",
"stayed the same",
"decreased"
] | 0 | Read the text about a person in motion.
Duncan rode an escalator from the first floor to the second floor of a shopping mall. | 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 Duncan and the center of Earth changed.
The second floor is higher than the first floor. As he rode the escalator toward the second floor, the distance between Duncan and the center of Earth increased. So, the gravitational potential energy stored between Duncan and Earth increased ... |
Not supported with pagination yet | Which figure of speech is used in this text?
I must confess that in my quest I felt depressed and restless
—Thin Lizzy, "With Love" | [
"assonance",
"chiasmus"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses assonance, the repetition of a vowel sound in a series of nearby words.
The words confess, quest, depressed, and restless share a vowel sound. | |
Not supported with pagination yet | Based on this information, what is Cotton's phenotype for the fur texture trait? | [
"wavy fur",
"straight fur"
] | 1 | In a group of Syrian hamsters, some individuals have straight fur and others have wavy fur. In this group, the gene for the fur texture trait has two alleles. The allele for wavy fur (f) is recessive to the allele for straight fur (F).
Cotton is a Syrian hamster from this group. Cotton has the heterozygous genotype Ff ... | 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 Cotton's phenotype for the fur texture trait. First, consider the alleles in Cotton's genotype for the fur texture gene. Then, decide whether these alleles are dominant or recessive.
The allele for wavy fur (f) is recessive to the allele for straight fur (F). This means F is a dominant allele, and... |
Which of these states is farthest south? | [
"Connecticut",
"North Dakota",
"Missouri",
"Wyoming"
] | 2 | 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 south arrow is pointing. Missouri is farthest south. | ||
Not supported with pagination yet | Which figure of speech is used in this text?
Unfortunately, the wild blueberries we picked were as sweet as vinegar. | [
"onomatopoeia",
"verbal irony"
] | 1 | closed choice | grade7 | language science | figurative-language | Literary devices | Classify figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Alliteration is the repetition of sounds at the beginning of nearby words.
What a lucky little lady you are!
An allusion is a brief reference to something or someone well known, often from his... | The text uses verbal irony, which involves saying one thing but implying something very different.
As sweet as vinegar shows verbal irony because vinegar is sour, not sweet. | |
Complete the statement.
Sodium fluoride is (). | [
"an elementary substance",
"a compound"
] | 1 | The model below represents sodium fluoride. Sodium fluoride is used in toothpaste to help prevent cavities. | closed choice | grade7 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances that are ... | Use the model to determine whether sodium fluoride is an elementary substance or a compound.
Step 1: Interpret the model.
.
Use the legend to determine the chemical element represented by each color. The colors and atomic symbols from the legend are shown in the table below. The table also includes the names of the che... | |
Not supported with pagination yet | Assume all other forces on the chisel are balanced. Which statement describes the forces on the chisel? | [
"The forces are unbalanced, so there is a net force on the chisel.",
"The forces are balanced, so there is no net force on the chisel."
] | 1 | Clara is hammering a chisel into a block of marble to carve a sculpture. The hammer is pushing the chisel forward with a force of 40N. The block of marble is pushing the chisel backward with a force of 40N. | closed choice | grade7 | natural science | physics | Velocity, acceleration, and forces | Balanced and unbalanced forces | A force is a push or a pull that acts on an object. Every force has a direction and a magnitude, or strength. If two forces act on an object in opposite directions, the forces are called opposing forces.
When opposing forces have the same magnitude, they are balanced. If all the forces on an object are balanced, there ... | To determine if there is a net force on the chisel, look at the forces:
The hammer is pushing the chisel forward with a force of 40 N.
The block of marble is pushing the chisel backward with a force of 40 N.
The forces are in opposite directions, and the forces have the same magnitude: 40 N. This means that the forces ... |
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 | grade2 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south.
Here are some examples of magnets.... | Will these magnets attract or repel? To find out, look at which poles are closest to each other.
The south pole of one magnet is closest to the south pole of the other magnet. Poles that are the same repel. So, these magnets will repel each other. | |
Not supported with pagination yet | What does "quartered" mean? | [
"imprisoned",
"attacked",
"paid a small amount",
"given a place to stay"
] | 3 | The Third Amendment says that no soldier shall be "quartered in any house" during a time of peace without the house owner's permission. | closed choice | grade4 | social science | civics | Government | The Bill of Rights | In the Third Amendment, "quartered" means "given a place to stay." So, the Third Amendment says that Americans don't have to let soldiers stay in their houses during a time of peace. The complete text of the Third Amendment is below. Are there any times when an American might have to let a soldier stay in his or her ho... | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
chase - compass | [
"captive",
"circular"
] | 1 | closed choice | grade6 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since circular is between the guide words chase - compass, it would be found on that page. | |
Not supported with pagination yet | Which type of sentence is this?
As Michael sat down on the rickety old chair, it abruptly collapsed beneath him. | [
"compound",
"simple",
"compound-complex",
"complex"
] | 3 | 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 complex. It is made up of an independent clause and a dependent clause. The dependent clause begins with the subordinating conjunction as.
As Michael sat down on the rickety old chair, it abruptly collapsed beneath him. | |
Not supported with pagination yet | What is the volume of a bathtub? | [
"100 fluid ounces",
"100 cups",
"100 gallons"
] | 2 | Select the best estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose customary units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using customary units, volume may be written in units of fluid ounces, cups,... | The best estimate for the volume of a bathtub is 100 gallons.
100 fluid ounces and 100 cups are both too little. |
Select the organism in the same genus as the garden hyacinth. | [
"Hyacinthus orientalis",
"Amphiprion frenatus",
"Ovis orientalis"
] | 0 | This organism is a garden hyacinth. Its scientific name is Hyacinthus orientalis. | 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 garden hyacinth's scientific name is Hyacinthus orientalis. The first word of its scientific name is Hyacinthus.
Amphiprion frenatus is in the genus Amphiprion. The first word of its scientific name is Amphiprion. So, Amphiprion frenatus and Hyacinthus orientalis are not in the same genus.
Ovis orientalis and Hyacint... | |
Not supported with pagination yet | Which would smell the most? | [
"gasoline",
"clay tile",
"metal shield"
] | 0 | closed choice | grade4 | natural science | physics | Materials | Compare properties of materials | Every object is made of one or more materials. A material is a type of matter. Wood, glass, metal, and plastic are common materials.
A material has different properties. A material's properties tell you how it looks, feels, tastes, or smells. Some examples of properties are shiny, hard, fragile, and stretchy.
For examp... | Smelly is a property. A smelly material has a strong smell.
Look at each picture, one at a time. Imagine smelling the material shown in each picture.
Of the choices, the gasoline would smell the most. Gasoline has a strong smell. | |
Which of these states is farthest north? | [
"Arkansas",
"Nevada",
"New Mexico",
"Georgia"
] | 1 | 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 north arrow is pointing. Nevada is farthest north. | ||
Not supported with pagination yet | Which word does not rhyme? | [
"pink",
"think",
"glad"
] | 2 | closed choice | grade1 | language science | phonological-awareness | Rhyming | Which word does not rhyme? | Rhyming words are words that end with the same sound.
The words tip and slip rhyme. They both end with the ip sound.
The words lake and make rhyme. They both end with the ake sound.
The words tip and lake don't rhyme. They end with different sounds. | The words pink and think rhyme. They both end with the ink sound.
The word glad does not rhyme. It ends with a different sound. | |
Which is the main persuasive appeal used in this ad? | [
"logos (reason)",
"ethos (character)",
"pathos (emotion)"
] | 2 | 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 pathos, or emotion. It triggers a fear of being socially rejected. | ||
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Lucy felt awful after she scolded Erica for missing the deadline.",
"After Lucy scolded Erica for missing the deadline, she felt awful."
] | 1 | closed choice | grade10 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun she could refer to Lucy or Erica.
After Lucy scolded Erica for missing the deadline, she felt awful.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning is clear.
Luc... | |
Which solution has a higher concentration of purple particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 0 | 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 animal's feet are also adapted for grabbing prey? | [
"red-tailed hawk",
"pygmy hippopotamus"
] | 0 | White-tailed eagles eat fish, mammals, and other birds. The 's feet are adapted for grabbing prey.
Figure: white-tailed eagle. | closed choice | grade3 | natural science | biology | Adaptations | Animal adaptations: feet and limbs | An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with thick fur m... | Look at the picture of the white-tailed eagle.
The white-tailed eagle has long toes with sharp claws. Its feet are adapted for grabbing prey. The sharp claws can help the white-tailed eagle attack and kill its prey. The long toes can help it hold on to its prey.
Now look at each animal. Figure out which animal has a si... | |
During this time, thermal energy was transferred from () to (). | [
"the surroundings . . . each cake",
"each cake . . . the surroundings"
] | 1 | Eduardo baked two identical cakes. When he took them out of the oven, he left one cake in its pan and took the other cake out of its pan to put it on a plate. This table shows how the temperature of each cake changed over 5minutes. | closed choice | grade7 | natural science | physics | Thermal energy | Compare thermal energy transfers | A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decreased. So, th... | The temperature of each cake decreased, which means that the thermal energy of each cake decreased. So, thermal energy was transferred from each cake to the surroundings. | |
Not supported with pagination yet | What does this Works Cited entry indicate about the cited work?
Mark, Philip. "Thursday's Meeting." Message to Luiz Rodriguez. 3 May 2014. E-mail. | [
"Mark is the sender's first name.",
"Philip is the sender's first name.",
"Luiz is the sender's first name."
] | 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:
Mark, Philip. "Thursday's Meeting." Message to Luiz Rodriguez. 3 May 2014. E-mail.
You can tell that Philip is the sender's first name because the sender's name appears last name first at the beginning of the entry. | |
Identify the question that Greta's experiment can best answer. | [
"Do more tomato seedlings grow when they are planted in soil with fertilizer compared to soil without fertilizer?",
"Does the humidity level where tomato seeds are planted affect the number of tomato seedlings that grow?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Greta planted 25 tomato seeds one-half inch below the soil surface in each of six pots. Greta added an equal amount of fertilizer to three of the six pots. She placed the pots in a plant growth chamber where all the see... | closed choice | grade7 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Which of these states is farthest east? | [
"Montana",
"Oklahoma",
"Washington",
"Nevada"
] | 1 | closed choice | grade4 | social science | geography | Maps | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the east arrow is pointing. Oklahoma is farthest east. | ||
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | [
"neither; the samples have the same temperature",
"sample A",
"sample B"
] | 2 | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. | closed choice | grade7 | natural science | physics | Particle motion and energy | Identify how particle motion affects temperature and pressure | The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater the mass of... | Each particle in sample B has more mass than each particle in sample A. The particles in sample B also have a higher average speed than the particles in sample A. So, the particles in sample B have a higher average kinetic energy than the particles in sample A.
Because the particles in sample B have the higher average ... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Though Mr. Murphy loved the old house's charming kitchen, it was in serious need of repair.",
"The old house was in serious need of repair, but Mr. Murphy loved its charming kitchen."
] | 0 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun it could refer to the house or the kitchen.
Though Mr. Murphy loved the old house's charming kitchen, it was in serious need of repair.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritte... | |
What is the name of the colony shown? | [
"Rhode Island",
"Pennsylvania",
"South Carolina",
"Massachusetts"
] | 0 | closed choice | grade7 | social science | us-history | Colonial America | Identify the Thirteen Colonies | The colony is Rhode Island. | |||
Which of these states is farthest south? | [
"North Dakota",
"Michigan",
"Rhode Island",
"Texas"
] | 3 | closed choice | grade2 | social science | geography | Geography | Read a map: cardinal directions | Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most maps, north... | To find the answer, look at the compass rose. Look at which way the south arrow is pointing. Texas is farthest south. | ||
Not supported with pagination yet | Which sentence uses a metaphor? | [
"Anthony's eyes are bright green emeralds.",
"Anthony's eyes are as green as emeralds."
] | 0 | closed choice | grade5 | language science | figurative-language | Literary devices | Identify similes and metaphors | Similes and metaphors are figures of speech that compare two things that are not actually alike.
A simile compares two things by saying that one is like the other. Similes often use the words like and as.
My sister runs like a cheetah.
The sister's running and a cheetah's running are compared using the word like.
A che... | This sentence uses a metaphor:
Anthony's eyes are bright green emeralds.
The words eyes and emeralds are compared without the word like or as.
This sentence uses a simile:
Anthony's eyes are as green as emeralds.
The words eyes and emeralds are compared using the word as. | |
What is the capital of California? | [
"Salt Lake City",
"Fairbanks",
"Sacramento",
"Springfield"
] | 2 | closed choice | grade5 | social science | geography | State capitals | Identify the 50 state capitals | Sacramento is the capital of California. | |||
Not supported with pagination yet | Does the sentence use a simile or a metaphor?
Mrs. Gibson is an owl, working at night and sleeping during the day. | [
"metaphor",
"simile"
] | 0 | closed choice | grade5 | language science | figurative-language | Literary devices | Identify similes and metaphors | Similes and metaphors are figures of speech that compare two things that are not actually alike.
A simile compares two things by saying that one is like the other. Similes often use the words like and as.
My sister runs like a cheetah.
The sister's running and a cheetah's running are compared using the word like.
A che... | Mrs. Gibson is an owl, working at night and sleeping during the day.
The words Mrs. Gibson and owl are compared without the word like or as. So, the sentence uses a metaphor. | |
Not supported with pagination yet | What information supports the conclusion that Danny acquired this trait? | [
"Danny's scar is on his left knee. His mother also has a scar on her left knee.",
"Danny's brother has scars on both of his knees.",
"Danny's scar was caused by an accident. He cut his leg when he fell off his skateboard."
] | 2 | Read the description of a trait.
Danny has a scar on his left knee. | closed choice | grade7 | natural science | biology | Genes to traits | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down from biological parents to their offspring through genes. Genes are pieces of hereditary material that contain the instructions that affect inherited traits.... | |
Not supported with pagination yet | What do these two changes have in common?
dry ice sublimating and becoming a gas
water evaporating from a lake | [
"Both are chemical changes.",
"Both are caused by cooling.",
"Both are only physical changes."
] | 2 | closed choice | grade7 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Dry ice is solid carbon dioxide. When dry ice gets warm, it changes state and becomes carbon dioxide gas. This change of state, from solid to gas, is called sublimation.
Dry ice becoming a gas is a physical change. A change of state does not form a different type of matter.
Water evapor... | |
Not supported with pagination yet | Which phrase has a more negative connotation? | [
"a company's spoils",
"a company's profits"
] | 0 | closed choice | grade6 | language science | vocabulary | Shades of meaning | Positive and negative connotation | Connotation is the feeling or idea that goes along with a word or phrase. Some words are close in meaning but have different connotations.
For example, think about the words eager and impatient. They both mean wanting something to happen, but they have different connotations.
Eager has a positive connotation. It is a n... | A company's spoils has a more negative connotation. Spoils and profits both denote material gains. However, spoils suggests things of value that were unfairly taken from others, while profits suggests money that was earned. | |
Not supported with pagination yet | Complete the sentences.
According to the Tenth Amendment, the Constitution lists all of the powers given to the United States government. Any power not listed in the Constitution belongs to either the American people or (). | [
"the state governments",
"private businesses",
"the king or queen of Great Britain",
"the Canadian government"
] | 0 | closed choice | grade4 | social science | civics | Government | The Bill of Rights | According to the Tenth Amendment, the Constitution lists all of the powers given to the United States government. Any power not listed in the Constitution belongs to either the American people or the state governments. The full text of the Tenth Amendment is below. The powers not delegated to the United States by the C... | ||
Not supported with pagination yet | Which is smoother? | [
"glass jar",
"bark"
] | 0 | 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. | Smooth is a property. A smooth material is not rough or bumpy.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the glass jar is smoother. If you touch a glass jar, it will not feel rough or bumpy. | |
What is the name of the colony shown? | [
"New York",
"Delaware",
"Georgia",
"Vermont"
] | 0 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is New York.
During the colonial era, New Hampshire and New York both claimed the territory that would later become the state of Vermont. Vermont was never its own colony. | |||
How can pine tree seeds get dispersed? | [
"by sticking to female cones",
"by blowing in the wind"
] | 1 | This diagram shows the life cycle of a pine tree. | closed choice | grade8 | natural science | biology | Plant reproduction | Angiosperm and conifer life cycles | Gymnosperms are plants that have seeds but not flowers. Conifers are a type of a gymnosperm. Instead of flowers, conifers have cones. Conifers use their cones for sexual reproduction.
Most conifer trees have both male and female cones. The male cones produce pollen. The female cones produce eggs and a sticky substance ... | Pine seeds can be dispersed, or spread around, by the wind. When the seeds land on the ground, they can germinate and grow into a new plant.
Pollen may land on and stick to an unfertilized female cone. But seeds are not dispersed by sticking to female cones. | |
Not supported with pagination yet | What kind of sentence is this?
Barbara gave me flowers for no reason. | [
"declarative",
"interrogative"
] | 0 | closed choice | grade5 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence tells about something, and it ends with a period. It is a declarative sentence. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Jane plays soccer. | [
"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... | People are not born knowing how to play soccer. Instead, some people learn how to play soccer. Playing the sport takes practice. So, playing soccer is an acquired trait. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Gabriel bought a program for the opera without realizing that it was in Russian.",
"Gabriel bought a program for the opera without realizing that the program was in Russian."
] | 0 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The first answer choice contains a vague pronoun reference. The pronoun it could refer to the program or the opera.
The second answer choice shows a possible correction for the vague pronoun reference. It has been replaced with the program.
Gabriel bought a program for the opera without realizing that the program was i... | |
Not supported with pagination yet | Which logical fallacy is used in the text?
Mayor Haley wants to create more bicycle lanes in Rockport. Why is he forcing us to give up our cars and bike everywhere? | [
"straw man: a misrepresentation of an opponent's position that makes it easier to argue against",
"appeal to nature: the assumption that natural things are always good"
] | 0 | 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 creating more bike lanes means that Mayor Haley thinks that everyone should ride bicycles instead of cars. However, the fact that Mayor Haley wants more bike lanes doesn't necessarily suggest that the mayor is opposed to other forms of transportation. This illustrates a type of logical fallacy know... | |
Not supported with pagination yet | Which closing is correct for a letter? | [
"Your Niece,\nAmelia",
"Your niece,\nAmelia"
] | 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 first closing is correct:
Its first word is capitalized, and it ends with a comma. | |
Which property do these four objects have in common? | [
"stretchy",
"hard",
"fuzzy"
] | 2 | Select the best answer. | closed choice | grade5 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Grouping objects... | Look at each object.
For each object, decide if it has that property.
A hard object does not change shape when pressed or squeezed. The tennis ball, the socks, and the stuffed dice are not hard.
A stretchy object gets longer when you pull on it. The socks are stretchy, but the kiwi is not.
A fuzzy object is covered in ... | |
Which of the following could Eli's test show? | [
"whether an inexpensive filter would become clogged more often",
"whether the filter was clogged",
"the amount of bacteria in the water before it was filtered"
] | 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 | 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... | ||
Which of these states is farthest south? | [
"Wyoming",
"Maryland",
"Iowa",
"Michigan"
] | 1 | 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 south arrow is pointing. Maryland is farthest south. | ||
Not supported with pagination yet | Select the tropical rain forest ecosystem. | [
"This ecosystem has:\nyear-round rain and warm temperatures\nsoil that is poor in nutrients\nmany different types of organisms",
"This ecosystem has:\na small amount of rain\ndry, thin soil\nmany different types of organisms",
"This ecosystem has:\nlong, cold winters and short, cool summers\nmany evergreen tree... | 0 | closed choice | grade7 | natural science | biology | Ecosystems | Identify ecosystems | An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which terrestri... | A tropical rain forest is a type of ecosystem. It has year-round rain and warm temperatures, soil that is poor in nutrients, and many different types of organisms.
Choice 1 is a tropical rain forest ecosystem. It has year-round rain and soil that is poor in nutrients.
Choice 2 is a hot desert ecosystem. It is dry and i... | |
Not supported with pagination yet | Which figure of speech is used in this text?
After tripping on the red carpet, the actress thought she would die of embarrassment. | [
"oxymoron",
"hyperbole"
] | 1 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses hyperbole, an obvious exaggeration that is not meant to be taken literally.
Die of embarrassment is an exaggeration, since the actress is probably not actually in danger of dying due to embarrassment. | |
Not supported with pagination yet | In 1787, a group of representatives from the states wrote the United States Constitution. What is the Constitution? | [
"the announcement of the colonies' independence from Great Britain",
"a list of the rights and powers that every state constitution must include",
"the written plan for the government of the United States",
"the peace treaty that ended the Revolutionary War"
] | 2 | closed choice | grade7 | social science | us-history | The Early Republic | The Constitutional Convention | The United States Constitution is the written plan for the government of the United States. It describes the structure and powers of the central government and is one of the country's founding documents.
How was the Constitution written?
The Constitution was written in 1787 by a group of representatives from the states... | ||
Which month is the wettest on average in Cairo? | [
"January",
"March",
"July"
] | 0 | Use the graph to answer the question below. | closed choice | grade4 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average precipitation for each month. The average precipitation can be used to describe the climate of a location.
A... | To describe the average precipitation trends in Cairo, look at the graph.
Choice "Jan" is incorrect.
Choice "Mar" is incorrect.
Choice "Jul" is incorrect.
January has an average monthly precipitation of about 15 millimeters. This is higher than in any other month. So, January is the wettest month on average. | |
Not supported with pagination yet | The city of Wildgrove has been one of the world's biggest makers of cough drops for many years. But last month, Wildgrove's cough drop factories were destroyed by floods. What will probably happen to the overall supply of cough drops? | [
"The supply will probably go up.",
"The supply will probably go down."
] | 1 | closed choice | 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... | Floods destroyed the cough drop factories in Wildgrove. The number of producers of cough drops went down. So, the supply of cough drops will probably go down. | |
Which of the following was a dependent variable in this experiment? | [
"the distance the sling was pulled back",
"the distance the ball traveled"
] | 1 | The passage below describes an experiment. Read the passage and think about the variables that are described.
Jackie got a slingshot for her birthday, and she was learning to use it by launching a rubber ball in a local park. Jackie noticed that the ball traveled farther when she pulled the sling back more. She wonder... | closed choice | grade6 | 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... | ||
Is sandstone a mineral or a rock? | [
"mineral",
"rock"
] | 1 | Sandstone has the following properties:
no fixed crystal structure
formed in layers
found in nature
not made by organisms
not a pure substance
solid | closed choice | grade7 | 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 sandstone match the properties of a rock. So, sandstone is a rock. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Colton has five fingers on each hand. | [
"acquired",
"inherited"
] | 1 | Hint: Colton was born with five fingers on each hand. | closed choice | grade3 | natural science | biology | 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... | Most humans are born with five fingers on each hand. So, having five fingers is an inherited trait. |
Which of the following could Rick's test show? | [
"if at least 20% of the park would be shaded by trees in each design",
"which design would have the least traffic noise in the concert area",
"which design would have the greatest distance between the concert area and the road"
] | 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 | How long is a sunflower seed? | [
"20 kilometers",
"20 centimeters",
"20 millimeters",
"20 meters"
] | 2 | Select the best estimate. | closed choice | grade7 | natural science | units-and-measurement | Units and measurement | Choose metric units of distance, mass, and volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using metric units, length can be written with units of millimeters, centimeters, meters, or kilometers. One meter contains 100 centimeters or 1,000 millimeters. So, 1 meter is lar... | The best estimate for the length of a sunflower seed is 20 millimeters.
20 centimeters, 20 meters, and 20 kilometers are all too long. |
Not supported with pagination yet | Using only these supplies, which question can Carmen investigate with an experiment? | [
"When placed in the sun, does a glass jar wrapped in cotton heat up more than a glass jar wrapped in wool?",
"When wrapped in a cotton shirt and placed in the sun, does a large jar or a small jar heat up more?",
"When placed in the sun, does a glass jar wrapped in a black cotton shirt heat up more than a glass ... | 2 | Carmen is outside with her friend on a sunny day. Carmen is wearing a light-colored shirt, and she notices that she feels colder than her friend, who is wearing a dark shirt. She wonders what factors affect how fabric warms an object. So, she decides to design an experiment. She has the following supplies available:
a ... | 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... | |
What is the name of the colony shown? | [
"South Carolina",
"Pennsylvania",
"Virginia",
"Massachusetts"
] | 0 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is South Carolina. | |||
In this experiment, which were part of a control group? | [
"the roses that were not sprayed",
"the roses sprayed with garlic juice"
] | 0 | The passage below describes an experiment.
Mia grew roses for a flower shop. One day, she noticed tumor-like growths on her rose stems. She could tell that the plants had crown gall disease, which is caused by a type of bacteria. She knew that allicin, a chemical in garlic, can kill bacteria. Mia wondered if spraying ... | closed choice | grade8 | 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, Mia investigated whether spraying roses with garlic juice affects how many crown gall tumors form. The roses that were not sprayed did not get garlic juice. So, they were part of a control group. | |
Not supported with pagination yet | What information supports the conclusion that Kathleen inherited this trait? | [
"Kathleen's hair is the same color as her brown eyes.",
"Kathleen's father has brown eyes. He passed this trait down to Kathleen."
] | 1 | Read the description of a trait.
Kathleen has brown eyes. | closed choice | grade4 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | Complete the statement. Assume that the sled's mass did not change.
The gravitational potential energy stored between the sled and Earth () as Leslie rode down the hill. | [
"increased",
"decreased",
"stayed the same"
] | 1 | Read the text about an object in motion.
On a snowy day, Leslie rode her sled down a big hill. | closed choice | grade8 | 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 sled and the center of Earth changed.
The bottom of the hill was lower than the point where Leslie started sledding. As Leslie rode toward the bottom of the hill, the distance between the sled and the center of Earth decreased. So, the gravitational potential energy stored betwe... |
Not supported with pagination yet | Select the temperature shown by this thermometer. | [
"10°C",
"0°C",
"20°C"
] | 2 | closed choice | grade3 | natural science | units-and-measurement | Weather and climate | Read a thermometer | A thermometer is a tool that measures temperature. Temperature can be measured in degrees. The symbol for degrees is °.
Some thermometers measure temperature in degrees Celsius (°C). Celsius is one scale used to measure temperature.
This is a tube thermometer. It has a tube filled with a red liquid.
There is a Celsius ... | Find the top of the red liquid.
Now look at the scale to the right. The top of the red liquid lines up with 20. So, the temperature is 20°C. | |
Not supported with pagination yet | Which change better matches the sentence?
An area becomes drier than usual after a year without rain. | [
"volcanic eruption",
"drought"
] | 1 | closed choice | grade2 | natural science | earth-science | Earth events | Classify changes to Earth's surface | |||
Not supported with pagination yet | Which object has the least thermal energy? | [
"a meatball at a temperature of 118°F",
"a meatball at a temperature of 116°F",
"a meatball at a temperature of 108°F"
] | 2 | The objects are identical except for their temperatures. | closed choice | grade4 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter slow down, the temperature goes down. The matter now has both ... | All three meatballs have the same mass but different temperatures. Since the 108°F meatball is the coldest, it has the least thermal energy. |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
snack - stumble | [
"solve",
"scatter"
] | 0 | closed choice | grade7 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since solve is between the guide words snack - stumble, it would be found on that page. | |
Not supported with pagination yet | According to Newton's third law, what other force must be happening? | [
"The mound of cookie dough is pushing on the rolling pin.",
"The mound of cookie dough is pulling on the rolling pin."
] | 0 | Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force.
Consider the following force:
A rolling pin is pushing on a mound of cookie dough. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Predict forces using Newton's third law | According to Newton's third law, for every force, there is an equal and opposite force. This means that if one object is applying a force on a second object, the second object must also be applying a force on the first object, but in the opposite direction.
For example, if your hand is pushing down on a table, the tabl... | The rolling pin is pushing on the mound of cookie dough. So, Newton's third law tells you that the mound of cookie dough is pushing on the rolling pin. |
Based on the table, in which story does the main character travel through time by accident? | [
"in both The Time Machine and A Connecticut Yankee in King Arthur's Court",
"only in A Connecticut Yankee in King Arthur's Court"
] | 1 | This table compares three stories about time travel. | closed choice | grade6 | language science | writing-strategies | Visual elements | Read graphic organizers | A graphic organizer is a chart or picture that shows how ideas, facts, or topics are related to one another.
When you read, look for graphic organizers included in the text. You can use these images to find key information. You can also create your own graphic organizers with information that you've read. Doing this ca... | In a table, each cell gives information related to its row and column. This table compares three stories about time travel.
Look in the Plot column to find the story about a character who travels through time accidentally. Follow that row left to see what's in the Story column. A Connecticut Yankee in King Arthur's Cou... | |
What is the capital of South Carolina? | [
"Charleston",
"Columbia",
"Frankfort",
"Baton Rouge"
] | 1 | closed choice | grade5 | social science | geography | State capitals | Identify state capitals of the Southeast | Columbia is the capital of South Carolina. | |||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
pail - planned | [
"pilgrim",
"pudding"
] | 0 | closed choice | 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 pilgrim is between the guide words pail - planned, it would be found on that page. | |
Which property matches this object? | [
"bouncy",
"blue"
] | 0 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. | Look at the object.
Think about each property.
Blue is a color.
This color is blue. The rubber ball is not blue.
A bouncy object will bounce back from the floor if you drop it. The rubber ball is bouncy. | |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
let - loud | [
"landlord",
"librarian"
] | 1 | closed choice | 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 librarian is between the guide words let - loud, it would be found on that page. | |
Not supported with pagination yet | Select the animal that does not have a backbone. | [
"golden frog",
"bumble bee"
] | 1 | Hint: Insects, spiders, and worms do not have backbones. | closed choice | grade2 | natural science | biology | Classification | Identify animals with and without backbones | Some animals have a backbone. The backbone is made of many bones in an animal's back. An animal's backbone helps connect the different parts of its body. In the drawings below, each animal's backbone is colored orange.
Other animals do not have a backbone. In fact, these animals don't have any bones! Some animals witho... | A golden frog is an amphibian. Like other amphibians, a golden frog has a backbone.
A bumble bee is an insect. Like other insects, a bumble bee does not have a backbone. It has a hard outer cover. |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Moray eels look like snakes, but snakes belong to a different class of the animal kingdom.",
"Moray eels look like snakes, but they belong to a different class of the animal kingdom."
] | 1 | closed choice | grade7 | language science | writing-strategies | Pronouns and antecedents | 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 they could refer to moray eels or snakes.
The first answer choice shows a possible correction for the vague pronoun reference. They has been replaced with snakes.
Moray eels look like snakes, but snakes belong to a different class of the animal ki... | |
Which state is highlighted? | [
"Missouri",
"Ohio",
"Iowa",
"Illinois"
] | 3 | closed choice | grade5 | social science | geography | States | Identify states of the Midwest | This state is Illinois. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
At only five feet tall, I've always felt a little vertically challenged. All of my friends are at least three inches taller. | [
"antithesis",
"euphemism"
] | 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 a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Vertically challenged is an indirect way of saying that someone is short. | |
What is the capital of Oklahoma? | [
"Jackson",
"Oklahoma City",
"Fargo",
"Charleston"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Southeast | Oklahoma City is the capital of Oklahoma. | |||
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."
] | 1 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade7 | 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.
Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magni... | |
Not supported with pagination yet | What information supports the conclusion that Ruth inherited this trait? | [
"Ruth's parents were born with wavy hair. They passed down this trait to Ruth.",
"Ruth and her mother both have short hair."
] | 0 | Read the description of a trait.
Ruth has wavy hair. | 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.... | |
Which of the following could Kevin'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? | [
"South Carolina",
"Wisconsin",
"Florida",
"Maryland"
] | 0 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is South Carolina. | |||
Not supported with pagination yet | Compare the motion of three speedboats. Which speedboat was moving at the lowest speed? | [
"a speedboat that moved 505kilometers west in 10hours",
"a speedboat that moved 465kilometers south in 10hours",
"a speedboat that moved 495kilometers south in 10hours"
] | 1 | closed choice | grade3 | natural science | physics | Force and motion | Compare the speeds of moving objects | An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the kilometer.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about objects mov... | Look at the distance each speedboat moved and the time it took to move that distance. The direction each speedboat moved does not affect its speed.
Notice that each speedboat moved for 10 hours. The speedboat that moved 465 kilometers moved the shortest distance in that time. So, that speedboat must have moved at the l... | |
Which solution has a higher concentration of yellow particles? | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | 2 | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. | closed choice | grade6 | natural science | chemistry | Solutions | Compare concentrations of solutions | A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater solution... | In Solution A and Solution B, the yellow particles represent the solute. To figure out which solution has a higher concentration of yellow particles, look at both the number of yellow particles and the volume of the solvent in each container.
Use the concentration formula to find the number of yellow particles per mill... | |
Which property matches this object? | [
"fuzzy",
"shiny"
] | 0 | Select the better answer. | closed choice | grade3 | natural science | physics | Materials | Identify properties of an object | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it. | Look at the object.
Think about each property.
A fuzzy object is covered in soft hair. The boots are fuzzy.
A shiny object reflects a lot of light. You can usually see your reflection in a shiny object. The boots are not shiny. | |
What can Wyatt and Gabe trade to each get what they want? | [
"Gabe can trade his almonds for Wyatt's tomatoes.",
"Wyatt can trade his tomatoes for Gabe's broccoli.",
"Gabe can trade his broccoli for Wyatt's oranges.",
"Wyatt can trade his tomatoes for Gabe'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.
Wyatt and Gabe open their lunch boxes in the school cafeteria. Neither Wyatt nor Gabe got everything that they wanted. The table ... | closed choice | grade7 | social science | economics | Basic economic principles | Trade and specialization | Look at the table and images.
Wyatt wants broccoli. Gabe 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 the personification in this text suggest?
Reggie tried to ignore his unfinished essay, but it glared at him from across the room. | [
"The essay was printed in large type.",
"It bothered Reggie that the essay wasn't finished."
] | 1 | closed choice | grade12 | language science | figurative-language | Literary devices | Interpret the figure of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Personification is giving human characteristics to nonhuman things.
The trees danced in the wind. | The text uses personification, giving human characteristics to nonhuman things.
Glared at him suggests that it bothered Reggie that the essay wasn't finished. The essay is like a person who is bothering Reggie. | |
Is rhyolite a mineral or a rock? | [
"rock",
"mineral"
] | 0 | Rhyolite has the following properties:
not made by organisms
solid
no fixed crystal structure
found in nature
light-colored
not a pure substance | 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 rhyolite match the properties of a rock. So, rhyolite is a rock. | |
Which material is this ring made of? | [
"metal",
"concrete"
] | 0 | closed choice | grade2 | 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 ring.
The ring is made of metal.
Rings can be made of many different types of metal, including silver, gold, platinum, and titanium. This ring is made of gold. | ||
Not supported with pagination yet | Which is a complete sentence? | [
"Mona spilled apple juice on the carpet.",
"Jessica wants to visit Lexington, she heard it has beautiful parks."
] | 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... | Mona spilled apple juice on the carpet is a complete sentence. The subject is Mona, and the verb is spilled. | |
Not supported with pagination yet | Which figure of speech is used in this text?
We sat beneath the beech tree and enjoyed the breeze. | [
"assonance",
"antithesis"
] | 0 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses assonance, the repetition of a vowel sound in a series of nearby words.
The words we, beneath, beech, tree, and breeze share a vowel sound. | |
Not supported with pagination yet | What information supports the conclusion that Donald acquired this trait? | [
"Donald learned biology by reading, observing, and experimenting.",
"Donald is most interested in human biology."
] | 0 | Read the description of a trait.
Donald knows a lot about biology. | closed choice | grade5 | natural science | biology | Traits and heredity | Inherited and acquired traits: use evidence to support a statement | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | |
Not supported with pagination yet | What kind of sentence is this?
Return the pliers to the toolbox in the garage when you're done. | [
"exclamatory",
"interrogative",
"imperative"
] | 2 | closed choice | grade6 | 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 tells someone to do something, so it is an imperative sentence. Here, it ends with a period. | |
Identify the question that Levi's experiment can best answer. | [
"Does temperature affect how much bacteria can grow in liquid?",
"Do more bacteria grow in liquid with cinnamon than in liquid without cinnamon?"
] | 1 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Levi mixed bacteria into a nutrient-rich liquid where the bacteria could grow. He poured four ounces of the mixture into each of ten glass flasks. In five of the ten flasks, he also added one teaspoon of cinnamon. He al... | closed choice | grade8 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Not supported with pagination yet | Which object has the most thermal energy? | [
"a cookie at a temperature of 45°F",
"a cookie at a temperature of 65°F",
"a cookie at a temperature of 80°F"
] | 2 | The objects are identical except for their temperatures. | closed choice | grade4 | natural science | physics | Heat and thermal energy | How is temperature related to thermal energy? | All solids, liquids, and gases are made of matter. Matter is made up of tiny particles that are always moving. The energy from the motion of these particles is called thermal energy.
Temperature measures how hot or cold matter is. If the particles in matter move faster, the temperature goes up. The matter now has both ... | All three cookies have the same mass but different temperatures. Since the 80°F cookie is the hottest, it has the most thermal energy. |
Subsets and Splits
Validation Subject & Topic Summary
Reveals the distribution and count of images across different subjects, topics, and categories, highlighting the most prevalent combinations.
SQL Console for derek-thomas/ScienceQA
This query provides a balanced sample of entries across different topics where images are missing, allowing for a more representative analysis of text-only data.
SQL Console for derek-thomas/ScienceQA
This query provides a balanced sample of text entries across different topics, ensuring that each topic is proportionally represented, which is useful for further analysis or model training.
Random Sample by Topic Ratio
This query balances the dataset by randomly selecting a proportional number of items from each topic to create a balanced subset of 3000 items, revealing how well-represented each topic is in the dataset.
Topic Counts by Grade
Provides a breakdown of the number of questions by topic (physics, chemistry, biology, geography) for each grade level, revealing the distribution of question types.
Validation Category Counts
Counts the number of unique questions per category, helping to understand the distribution of questions across different categories.
SQL Console for derek-thomas/ScienceQA
Identifies categories, questions, and answers that appear more than four times in the validation dataset with images, highlighting common or repetitive entries.
ScienceQA Validation Grouped Data
Provides a count of images and overall occurrences for each combination of subject, topic, category, and answer, helping to identify popular or common configurations.
Train Data with Numeric Choices
This query identifies distinct rows in the dataset where one of the elements in the choices column contains a number and the image column is null, providing insight into data completeness and specific patterns in the choices.
Physics Train with Images and Lectures
Retrieves physics educational records with images and lectures for specific grade levels, providing basic filtering but offering limited analytical insight beyond data availability.
Physics Q&As with Images
Retrieves physics-related training examples with images for specific grade levels, providing basic filtered data but offering limited analytical insight beyond simple categorization.
Physics Questions Gr 2-6 With Images
Retrieves physics-related test items with images for specific grade levels, providing basic filtered data but offering limited analytical insights beyond simple data retrieval.
Filter Text-only Train Questions
Retrieves questions and related metadata from the dataset excluding those with images, offering basic data filtering.
Skills Without Images
Counts the number of skills where the image is missing, providing a basic overview of incomplete data.
Top 10 Hard Text Questions
Retrieves the top 10 longest questions without images, ordered by grade level in descending order, providing basic insight into potentially more complex questions.
SQL Console for derek-thomas/ScienceQA
Counts the occurrences of each category, question, and answer combination where an image is present, providing basic filtering on the dataset.
List ScienceQA Topics
Lists all unique topics in the dataset, which provides a basic overview of the categories present.
Cultural Questions Without Images
Retrieves 100 entries from the 'train' dataset where the image is missing and the topic is 'culture', providing basic filtering with limited analytical value.
Biology Skills for Grades 2 & 3
Lists unique skills and categories for biology topics in grades 2 and 3, providing basic filtering of the dataset.
Biology Qs for Grades 2 &
Retrieves all entries for grade 2 and grade 3 students focusing on the biology topic, providing a basic filtered view of the dataset.
Biology Grade 3 Questions Count
Counts the number of entries for grade 3 students in the biology topic, providing a basic count of data points.
Select Test Rows With Images
The query retrieves all records from the 'test' table where the 'image' column is not null, providing basic filtering without deep analytical value.
Test Images Query
This query retrieves a limited sample of rows where the image column is not null, providing basic filtering but minimal analytical value.
Test Data with Images
The query filters out rows where the image column is not null, providing a basic subset of the data but without much analytical insight.
Select Test Entries With Images
The query retrieves all records from the 'test' table where the 'image' column is not null, providing basic filtering but no deeper analytical insight.