image imagewidth (px) 53 760 ⌀ | question stringlengths 14 862 | choices listlengths 2 5 | answer int8 0 4 | hint stringlengths 0 1.85k | task stringclasses 3
values | grade stringclasses 12
values | subject stringclasses 3
values | topic stringclasses 26
values | category stringclasses 119
values | skill stringclasses 321
values | lecture stringclasses 256
values | solution stringlengths 0 2.72k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Not supported with pagination yet | Would you find the word legend on a dictionary page with the following guide words?
large - like | [
"no",
"yes"
] | 1 | yes or no | grade8 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since legend is between the guide words large - like, it would be found on that page. | |
Select the organism in the same species as the great blue heron. | [
"Ardea herodias",
"Pelecanus rufescens",
"Falco peregrinus"
] | 0 | This organism is a great blue heron. Its scientific name is Ardea herodias. | 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 great blue heron's scientific name is Ardea herodias.
Pelecanus rufescens does not have the same scientific name as a great blue heron. So, Ardea herodias and Pelecanus rufescens are not in the same species.
Falco peregrinus does not have the same scientific name as a great blue heron. So, Ardea herodias and Falco pe... | |
Which part of the almond tree do we usually eat? | [
"the leaves",
"the seeds",
"the root"
] | 1 | People use almond trees for food. We usually eat the part of this plant that can grow into a new plant. | closed choice | grade4 | natural science | biology | Plants | Classify fruits and vegetables as plant parts | The fruits and vegetables we eat are parts of plants! Plants are made up of different structures. The different structures carry out important functions.
The roots take in water and nutrients from the soil. They also hold the plant in place in the soil.
The stem supports the plant. It carries food, water, and nutrients... | The part of the almond tree we usually eat is the seeds. They can grow into a new plant. | |
Not supported with pagination yet | Read the following excerpt from a student essay. How can the writer best improve his or her ideas and development?
In Amy Tan's The Joy Luck Club, four Chinese American daughters and their more traditional Chinese mothers try to reconcile their cultural differences. When the daughters are young girls, they are embarras... | [
"by clearly stating the main idea",
"by removing a second main idea",
"by including specific examples from the text"
] | 2 | 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 ideas and development by including specific examples from the text.
For example, the writer could provide specific examples and quotations from the book to illustrate the points being made in the underlined text.
In Amy Tan's The Joy Luck Club, four Chinese American daughters an... | |
Not supported with pagination yet | What kind of sentence is this?
Follow me in a single-file line. | [
"exclamatory",
"imperative"
] | 1 | closed choice | grade5 | language science | punctuation | Sentences, fragments, and run-ons | Is the sentence declarative, interrogative, imperative, or exclamatory? | There are four kinds of sentences.
A declarative sentence is a statement. It tells about something. A declarative sentence always ends with a period.
I have an older brother and a younger sister.
An interrogative sentence is a question. It asks something. An interrogative sentence always ends with a question mark.
How ... | The sentence tells someone to do something, so it is an imperative sentence. Here, it ends with a period. | |
What is the capital of Iowa? | [
"Davenport",
"Bismarck",
"Cedar Rapids",
"Des Moines"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Des Moines is the capital of Iowa. | |||
Which of these states is farthest north? | [
"Florida",
"Tennessee",
"Delaware",
"South Carolina"
] | 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 north arrow is pointing. Delaware is farthest north. | ||
Not supported with pagination yet | Which word does not rhyme? | [
"goal",
"coal",
"wish"
] | 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 coal and goal rhyme. They both end with the oal sound.
The word wish does not rhyme. It ends with a different sound. | |
Not supported with pagination yet | Does this passage describe the weather or the climate?
It is 65°F in Finn's backyard. | [
"weather",
"climate"
] | 0 | Hint: Weather is what the atmosphere is like at a certain place and time. Climate is the pattern of weather in a certain place. | closed choice | grade3 | 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.
It is 65°F in Finn's backyard.
This passage tells you about the temperature in Finn's backyard right now. It describes the atmosphere at a certain place and time. So, this passage describes the weather. |
Which property do these two objects have in common? | [
"soft",
"stretchy"
] | 0 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A soft object changes shape when you squeeze it. Both objects are soft.
A stretchy object gets longer when you pull on it. The feather is not stretchy.
The property that both objects have in common is soft. | |
Which property do these two objects have in common? | [
"sticky",
"stretchy"
] | 1 | Select the better answer. | closed choice | grade2 | natural science | physics | Materials | Compare properties of objects | An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells.
Different objects can have the same properties. You can use these properties to put objects into groups. | Look at each object.
For each object, decide if it has that property.
A stretchy object gets longer when you pull on it. Both objects are stretchy.
A sticky object can stick to other things. Neither of the objects are sticky.
The property that both objects have in common is stretchy. | |
Not supported with pagination yet | Select the living thing. | [
"paramecia",
"swing set",
"clay",
"moai"
] | 0 | closed choice | grade4 | natural science | biology | Classification | Identify living and nonliving things | All living things are made up of cells. Plants, animals, and some fungi have many cells. Other living things are made up of just one cell.
All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. They use energy from food to grow and change.
All... | Clay is not a living thing.
Clay does not have all of the traits of a living thing. It can be formed into different shapes, but it does not grow or respond to the world around it. It does not need food or water.
A swing set is not a living thing.
Swing sets do not have all of the traits of living things. They do not gr... | |
Not supported with pagination yet | What does the personification in this text suggest?
It was the early afternoon of a sunshiny day with little winds playing hide-and-seek in it.
—Katherine Mansfield, "How Pearl Button Was Kidnapped" | [
"There was very little wind.",
"There were occasional gusts of wind."
] | 1 | closed choice | grade10 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Personification is giving human characteristics to nonhuman things.
The trees danced in the wind. | The text uses personification, giving human characteristics to nonhuman things.
Little winds playing hide-and-seek suggests that there were occasional gusts of wind. It brings to mind children alternately disappearing and reappearing. | |
Not supported with pagination yet | What does the metaphor in this text suggest?
Eve felt a roller coaster of emotions when she heard the news. | [
"Eve found the news scary.",
"Eve had varied feelings."
] | 1 | closed choice | grade7 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A metaphor compares two things that are not actually alike without using like or as.
The snow formed a blanket over the town. | The text uses a metaphor, comparing two things that are not actually alike without using like or as.
The metaphor Eve felt a roller coaster of emotions suggests that Eve had varied feelings. A roller coaster has a dramatic mix of ups and downs, and so do Eve's feelings. | |
Not supported with pagination yet | Which correctly shows the title of a movie? | [
"The Odd Life of Timothy Green",
"The Odd life of timothy Green"
] | 0 | closed choice | grade4 | language science | capitalization | Formatting | Capitalizing titles | In a title, capitalize the first word, the last word, and every important word in between.
The Wind in the Willows James and the Giant Peach
These words are not important in titles:
Articles, a, an, the
Short prepositions, such as at, by, for, in, of, on, to, up
Coordinating conjunctions, such as and, but, or | Capitalize the first word, the last word, and every important word in between. The word of is not important, so it should not be capitalized.
The correct title is The Odd Life of Timothy Green. | |
What is the capital of Washington? | [
"Helena",
"Providence",
"Spokane",
"Olympia"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the West | Olympia is the capital of Washington. | |||
Which of these states is farthest east? | [
"Nebraska",
"Tennessee",
"Oklahoma",
"South Carolina"
] | 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 east arrow is pointing. South Carolina is farthest east. | ||
Not supported with pagination yet | What do these two changes have in common?
mixing lettuce and salad dressing
ice crystals forming on a window | [
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are caused by heating.",
"Both are chemical changes."
] | 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.
Mixing lettuce and salad dressing is a physical change. Together, the salad and dressing make a mixture. But making this mixture does not form a different type of matter.
Ice crystals forming on a window is a change of state. So, it is a physical change. Water vapor in the air can chang... | |
Which is this organism's scientific name? | [
"Steller's sea eagle",
"Haliaeetus pelagicus"
] | 1 | This organism is Haliaeetus pelagicus. It is also called a Steller's sea eagle. | closed choice | grade7 | natural science | biology | Classification and scientific names | Identify common and scientific names | An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in italics,... | Haliaeetus pelagicus is written in italics. The first word is capitalized, and the second word is not.
So, Haliaeetus pelagicus is the scientific name. | |
Complete the sentence.
The Great Himalayas formed at a () boundary. | [
"convergent",
"transform",
"divergent"
] | 0 | Read the passage and look at the picture.
The Great Himalayas are a mountain range that stretches across northern India, Nepal, and neighboring countries. The mountain range began to form 40 to 50 million years ago as the Indo-Australian Plate collided with the Eurasian Plate. Because the plates are still colliding, th... | closed choice | grade8 | natural science | earth-science | Plate tectonics | Describe tectonic plate boundaries around the world | The outer layer of Earth is broken up into many pieces called tectonic plates, or simply plates. The breaks between plates are called plate boundaries. Plate boundaries are classified by the way the plates are moving relative to each other:
At a divergent boundary, two plates are moving away from each other.
At a trans... | To figure out what type of plate boundary formed the Great Himalayas, you need to know how the tectonic plates interacted. To find this out, read the passage carefully.
The Great Himalayas are a mountain range that stretches across northern India, Nepal, and neighboring countries. The mountain range began to form 40 to... | |
Which of the following could Alice and Maddie's test show? | [
"if the concrete from each batch took the same amount of time to dry",
"if a new batch of concrete was firm enough to use"
] | 1 | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the ques... | closed choice | grade6 | natural science | science-and-engineering-practices | Engineering practices | Evaluate tests of engineering-design solutions | People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design. How can you determine what a test can show? You need to figure out what was tested and what was measured.
Imagine an engineer needs to design a... | ||
Not supported with pagination yet | What is the volume of a large soup pot? | [
"8 milliliters",
"8 liters"
] | 1 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a large soup pot is 8 liters.
8 milliliters is too little. |
Select the fish below. | [
"robin",
"bull shark"
] | 1 | Fish live underwater. They have fins, not limbs. A piranha is an example of a fish. | closed choice | grade3 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification. | A bull shark is a fish. It lives underwater. It has fins, not limbs.
Bull sharks can live in both fresh and salt water. They are found in rivers and in shallow parts of the ocean.
A robin is a bird. It has feathers, two wings, and a beak.
A robin is a songbird. It sings different songs at different times of the day. | |
Not supported with pagination yet | Which text uses the word factoid in its traditional sense? | [
"Jonathan seemed to know a lot about African wildlife, but it turned out that his knowledge was mostly based on factoids gleaned from unreliable websites.",
"Jonathan subscribed to an online newsletter about African wildlife; he enjoyed receiving daily factoids about the wild animals' natural habitats and behavio... | 0 | closed choice | grade12 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The second text uses factoid in its traditional sense: something made up presented as a true fact.
Jonathan seemed to know a lot about African wildlife, but it turned out that his knowledge was mostly based on factoids gleaned from unreliable websites.
The first text uses factoid in its nontraditional sense: a trivial ... | |
Which statement is true about the average monthly precipitation in Nairobi? | [
"More precipitation falls in September than in November.",
"More precipitation falls in April than in August.",
"February is the wettest month of the year."
] | 1 | Use the graph to answer the question below. | closed choice | grade3 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data.
A bar graph can be used to show the average amount of precipitation each month. Months with taller bars have more precipitation on average. | To describe the average precipitation trends in Nairobi, look at the graph.
Choice "Feb" is incorrect.
Choice "Apr" is incorrect.
Choice "Aug" is incorrect.
Choice "Sep" is incorrect.
Choice "Nov" is incorrect.
Choice "More precipitation falls in April than in August." is incorrect.
April has a higher average monthly p... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Sofia, I've told you a million times: you need to dry the dishes before you put them away. | [
"hyperbole",
"paradox"
] | 0 | closed choice | grade12 | language science | figurative-language | Literary devices | Classify the figure of speech: euphemism, hyperbole, oxymoron, paradox | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
A euphemism is a polite or indirect expression that is used to de-emphasize an unpleasant topic.
The head of Human Resources would never refer to firing people, only to laying them off.
Hyperb... | The text uses hyperbole, an obvious exaggeration that is not meant to be taken literally.
A million times is an exaggeration, since it is unlikely that Sofia has actually been told this a million times. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Darell can ride a motorcycle. | [
"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 ride a motorcycle. Instead, many people learn how to ride. So, riding a motorcycle is an acquired trait. | |
What is the capital of New York? | [
"Juneau",
"Jackson",
"Albany",
"Montpelier"
] | 2 | closed choice | grade3 | social science | geography | State capitals | Identify state capitals of the Northeast | Albany is the capital of New York. | |||
Which property do these three objects have in common? | [
"salty",
"opaque",
"soft"
] | 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.
Potato chips have a salty taste. The jello is not salty.
An opaque object does not let light through. The ball of wet clay is opaque, but the jello is not.
A soft object changes shape when pressed or squeezed. All three objects are soft.
The property... | |
Not supported with pagination yet | What do these two changes have in common?
mixing sand and gravel
adding dish soap to water in a sink | [
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are chemical changes."
] | 0 | closed choice | grade8 | natural science | chemistry | Chemical reactions | Compare physical and chemical changes | Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | Step 1: Think about each change.
Mixing sand and gravel is a physical change. Together, the sand and gravel make a mixture. But making this mixture does not form a different type of matter.
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 differe... | |
What is the capital of Michigan? | [
"Frankfort",
"Lansing",
"Burlington",
"Grand Rapids"
] | 1 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Lansing is the capital of Michigan. | |||
Not supported with pagination yet | Which figure of speech is used in this text?
Ellie gazed at the ancient pug that seemed to sleep all day and noted, "You're an energetic puppy!" | [
"idiom",
"verbal irony"
] | 1 | closed choice | grade9 | language science | figurative-language | Literary devices | Classify figures 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.
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.
An energetic puppy shows verbal irony because an old, exhausted dog is far from an energetic puppy. | |
Which animal's skin is also adapted for survival in cold places? | [
"fantastic leaf-tailed gecko",
"caribou"
] | 1 | Musk oxen live in the Canadian Arctic and Greenland. The 's skin is adapted to help the animal survive in cold places.
Figure: musk ox. | 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 musk ox.
The musk ox 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 musk ox uses its fur and fat to keep warm in cold weather.
Now look at each animal. Figure out which animal has a similar adaptation.
During the win... | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Zoe is good at knitting hats. | [
"inherited",
"acquired"
] | 1 | Hint: People who can knit had to learn how to do it. | 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... | People are not born knowing how to knit. Instead, many people learn how to knit. Knitting well takes practice. So, knitting well is an acquired trait. |
What is the name of the colony shown? | [
"Wisconsin",
"Tennessee",
"Connecticut",
"New Jersey"
] | 2 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Connecticut. | |||
Not supported with pagination yet | Which is a compound sentence? | [
"Avalanches can reach speeds of eighty miles per hour within five seconds.",
"I slept deeply all night long, but this morning I still feel tired."
] | 1 | closed choice | grade6 | language science | grammar | Sentences, fragments, and run-ons | Is the sentence simple, compound, or complex? | A clause is a group of words that contains both a subject and a predicate.
An independent clause is a complete thought. It can stand alone as a sentence. A dependent clause is not a complete thought. It cannot stand alone as a sentence.
the oranges on our tree are ripe
The clause can stand alone. It is independent.
aft... | The second sentence is the compound sentence. It is made up of two independent clauses joined by the coordinating conjunction but.
I slept deeply all night long, but this morning I still feel tired. | |
Not supported with pagination yet | Which figure of speech is used in this text?
The comedy show was a huge success. The audience was dying of laughter the entire time. | [
"hyperbole",
"euphemism"
] | 0 | 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.
Dying of laughter is an exaggeration, since it is clear that the audience did not actually die. | |
Not supported with pagination yet | Would you find the word turn on a dictionary page with the following guide words?
tangerine - thy | [
"no",
"yes"
] | 0 | yes or no | grade5 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since turn is not between the guide words tangerine - thy, it would not be found on that page. | |
What is the capital of Utah? | [
"Denver",
"Provo",
"Phoenix",
"Salt Lake City"
] | 3 | closed choice | grade3 | social science | geography | State capitals | Identify the 50 state capitals | Salt Lake City is the capital of Utah. | |||
Not supported with pagination yet | Complete the sentence.
A piece of pizza rotting in a trashcan is a (). | [
"physical change",
"chemical change"
] | 1 | closed choice | grade2 | natural science | chemistry | Physical and chemical change | Identify physical and chemical changes | Chemical changes and physical changes are two ways matter can change.
In a chemical change, the type of matter changes.
Burning a piece of paper is a chemical change. The paper changes into ash and smoke.
In a physical change, the type of matter stays the same.
Cutting a piece of paper is a physical change. The cut pie... | A piece of pizza rotting is a chemical change. The matter in the pizza breaks down and slowly turns into a different type of matter. | |
Is the following statement about our solar system true or false?
The smallest planet is made mainly of rock. | [
"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. | The table tells you that the smallest planet is Mercury and that Mercury is made mainly of rock. So, the smallest planet is made mainly of rock. | |
Which statement best describes the average monthly precipitation in Atlanta? | [
"February is wetter than March.",
"October has the highest average precipitation.",
"Precipitation does not change much from month to month in Atlanta."
] | 2 | Use the graph to answer the question below. | closed choice | grade3 | natural science | earth-science | Weather and climate | Use climate data to make predictions | Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data.
A bar graph can be used to show the average amount of precipitation each month. Months with taller bars have more precipitation on average. | To describe the average precipitation trends in Atlanta, look at the graph.
Choice "Feb" is incorrect.
Choice "Mar" is incorrect.
Choice "Oct" is incorrect.
Choice "Precipitation does not change much from month to month in Atlanta." is incorrect.
The average monthly precipitation changes only slightly throughout the ye... | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"Even after Danny warned Alice to be careful, she dropped his handmade ceramic bowl on her foot and broke it.",
"Even after Danny warned Alice to be careful, she broke his handmade ceramic bowl when she dropped it on her foot."
] | 0 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The second answer choice contains a vague pronoun reference. The pronoun it could refer to his handmade ceramic bowl or her foot.
Even after Danny warned Alice to be careful, she dropped his handmade ceramic bowl on her foot and broke it.
The first answer choice shows a possible correction for the vague pronoun referen... | |
Not supported with pagination yet | What is the volume of a kiddie pool? | [
"1,070 liters",
"1,070 milliliters"
] | 0 | Select the better estimate. | closed choice | grade4 | natural science | units-and-measurement | Units and measurement | Choose metric units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a kiddie pool is 1,070 liters.
1,070 milliliters is too little. |
Not supported with pagination yet | Which text uses the word peruse in its traditional sense? | [
"Aaron perused a clothing catalog as he waited for his appointment, flipping through the pages distractedly.",
"Aaron perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift."
] | 1 | 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 peruse in its traditional sense: to examine in detail.
Aaron perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift.
The second text uses peruse in its nontraditional sense: to look through in a casual manner.
Aaron perused a clothing catalog as he waited ... | |
Not supported with pagination yet | Which tense does the sentence use?
The plane will land in Tokyo. | [
"future tense",
"present tense",
"past tense"
] | 0 | 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, land. The verb tells you about something that is going to happen. | |
Not supported with pagination yet | What information supports the conclusion that Zeke inherited this trait? | [
"Zeke wears glasses and so do his sisters.",
"Zeke's friend also has hazel eyes.",
"Zeke's biological father wears contacts in his hazel eyes."
] | 2 | Read the description of a trait.
Zeke has hazel eyes. | 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 | Complete the sentence.
In this chemical reaction, oxygen is a (). | [
"reactant",
"product"
] | 0 | This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
The Space Shuttle program sent astronauts on 135 missions using a fleet of five shuttles between 1981 and 2011. The engines of each shuttle, like other modern rocket engines, used liquid hydrogen as fuel. When liquid hydr... | closed choice | grade7 | natural science | chemistry | Chemical reactions | Identify reactants and products | A chemical change occurs when new substances are formed from existing substances. This process is called a chemical reaction.
In a chemical reaction, one or more substances change into one or more different substances. During the reaction, the atoms of the original substances are rearranged to form other substances.
Th... | Read the underlined text carefully. Look for information about what happens to oxygen in this chemical reaction.
The Space Shuttle program sent astronauts on 135 missions using a fleet of five shuttles between 1981 and 2011. The engines of each shuttle, like other modern rocket engines, used liquid hydrogen as fuel. Wh... |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
daily - dirt | [
"decorate",
"domino"
] | 0 | closed choice | grade4 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since decorate is between the guide words daily - dirt, it would be found on that page. | |
Which of the following organisms is the secondary consumer in this food web? | [
"lichen",
"bear sedge",
"Arctic fox"
] | 2 | Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.
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 | grade6 | 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... | Secondary consumers eat primary consumers, and primary consumers eat producers. So, in a food web, secondary consumers have arrows pointing to them from primary consumers. Primary consumers have arrows pointing to them from producers.
The Arctic fox has an arrow pointing to it from the brown lemming. The brown lemming ... | |
Not supported with pagination yet | Which figure of speech is used in this text?
Shelley's Boutique claims to have "something for everyone," but it is generally understood that their target market is women of a certain age. | [
"paradox",
"euphemism"
] | 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 a euphemism, a polite or indirect expression that is used to de-emphasize an unpleasant topic.
Of a certain age is an indirect and generally more polite way of referring to older people. | |
Which of these states is farthest east? | [
"Pennsylvania",
"Georgia",
"Oklahoma",
"North Dakota"
] | 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 east arrow is pointing. Pennsylvania is farthest east. | ||
Not supported with pagination yet | Would you find the word ring on a dictionary page with the following guide words?
ran - return | [
"no",
"yes"
] | 0 | yes or no | grade2 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since ring is not between the guide words ran - return, it would not be found on that page. | |
Not supported with pagination yet | Which type of sentence is this?
Julia is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years. | [
"compound",
"simple",
"complex",
"compound-complex"
] | 3 | closed choice | grade7 | 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-complex. It is made up of two independent clauses and a dependent clause. The dependent clause begins with the relative pronoun which.
Julia is a competitive horseback rider, and she will be competing in the next World Equestrian Games, which are held every four years. | |
Not supported with pagination yet | Which of the following contains a vague pronoun reference? | [
"After scouring the classified ads for days, Rick finally found a used car that fit his budget. The sedan had Bluetooth, but it needed to be fixed.",
"After scouring the classified ads for days, Rick finally found a used car that fit his budget. The sedan needed to be fixed, but it had Bluetooth."
] | 0 | closed choice | grade11 | language science | writing-strategies | Pronouns | Identify vague pronoun references | When writing, make sure to avoid vague pronoun references. A vague pronoun reference occurs when a pronoun could refer to more than one possible antecedent.
When Lisa and Kim finally landed, she breathed a sigh of relief.
The pronoun she could refer to either Lisa or Kim, so the meaning of the sentence is unclear.
Vagu... | The second answer choice contains a vague pronoun reference. The pronoun it could refer to the sedan or Bluetooth.
After scouring the classified ads for days, Rick finally found a used car that fit his budget. The sedan had Bluetooth, but it needed to be fixed.
The first answer choice shows a possible correction for th... | |
Select the organism in the same species as the Victoria crowned pigeon. | [
"Aequorea victoria",
"Python molurus",
"Goura victoria"
] | 2 | This organism is a Victoria crowned pigeon. Its scientific name is Goura victoria. | closed choice | grade7 | natural science | biology | Classification and scientific names | Use scientific names to classify organisms | Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar organisms... | A Victoria crowned pigeon's scientific name is Goura victoria.
Python molurus does not have the same scientific name as a Victoria crowned pigeon. So, Goura victoria and Python molurus are not in the same species.
Goura victoria has the same scientific name as a Victoria crowned pigeon. So, these organisms are in the s... | |
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 the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2."
] | 0 | The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | closed choice | grade8 | natural science | physics | Velocity, acceleration, and forces | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | The magnets in Pair 2 attract. The magnets in Pair 1 repel. But whether the magnets attract or repel affects only the direction of the magnetic force. It does not affect the magnitude of the magnetic force.
Distance affects the magnitude of the magnetic force. When there is a smaller distance between magnets, the magni... | |
Not supported with pagination yet | Which tense does the sentence use?
The basketball game will begin in a minute. | [
"future tense",
"present tense",
"past tense"
] | 0 | closed choice | grade2 | language science | verbs | Verb tense | Is the sentence in the past, present, or future tense? | Present tense verbs tell you about something that is happening now.
Most present-tense verbs are regular. They have no ending, or they end in -s or -es.
Two verbs are irregular in the present tense, to be and to have. You must remember their forms.
Past tense verbs tell you about something that has already happened.
Mo... | The sentence is in future tense. You can tell because it uses will before the main verb, begin. The verb tells you about something that is going to happen. | |
Which material is this grocery bag made of? | [
"polyester",
"paper"
] | 1 | 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 grocery bag.
The grocery bag is made of paper.
Paper is made of wood pulp. You can use paper grocery bags until they start to tear. Then, you can recycle them. | ||
Which of these states is farthest north? | [
"California",
"Mississippi",
"Florida",
"Texas"
] | 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 north arrow is pointing. California is farthest north. | ||
Is plastic a mineral? | [
"no",
"yes"
] | 0 | Plastic has the following properties:
no fixed crystal structure
solid
not a pure substance
human-made | yes or no | grade5 | natural science | earth-science | Rocks and minerals | Identify rocks and minerals | Properties are used to identify different substances. Minerals have the following properties:
It is a solid.
It is formed in nature.
It is not made by organisms.
It is a pure substance.
It has a fixed crystal structure.
If a substance has all five of these properties, then it is a mineral.
Look closely at the last thre... | Plastic does not have all the properties of a mineral. So, plastic is not a mineral. | |
Not supported with pagination yet | Which object has more thermal energy? | [
"a 125-gram glass of grape juice at a temperature of 75°F",
"a 125-gram glass of grape juice at a temperature of 50°F"
] | 0 | The objects are identical except for their temperatures. | closed choice | grade3 | 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 ... | The two glasses of grape juice have the same mass but different temperatures. Since the 75°F glass of grape juice is hotter than the 50°F glass of grape juice, it has more thermal energy. |
Which country is highlighted? | [
"Australia",
"Solomon Islands",
"New Zealand",
"Papua New Guinea"
] | 0 | closed choice | grade7 | social science | geography | Oceania: geography | Identify and select countries of Oceania | This country is Australia.
Is Australia a country or a continent?
Both! Australia is a country in Oceania, a region made up of many lands and islands in the Pacific Ocean. Many people say that Australia is the world's smallest continent. But some people call Oceania a continent instead. | |||
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Nate was enjoying the lush life his newfound riches had brought him, but he couldn't help but think of his latest cholesterol reading as a Sword of Damocles. | [
"ancient legend",
"Shakespeare"
] | 0 | closed choice | grade12 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
The protean nature of the disease makes it difficult to diagnose.
The word protean is an allusion to the sea god Proteus in Gree... | The source of the allusion Sword of Damocles is ancient legend.
According to legend, when Damocles wished his life were as full of luxuries as that of the tyrant Dionysis, Dionysis invited Damocles to a sumptuous banquet. Above Damocles' seat at the feast, Dionysis had placed a sword, suspended only by a thin hair, dem... | |
Not supported with pagination yet | Suppose Mia decides to borrow the book from the library. Which result would be a cost? | [
"Mia will save some money by not buying the book.",
"Mia will give up the chance to keep the book as long as she wants."
] | 1 | Mia 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 | grade5 | 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 Mia wants or needs:
Mia will give up the chance to keep the book as long as she wants. |
Not supported with pagination yet | How long is an ice skate? | [
"28 meters",
"28 millimeters",
"28 centimeters",
"28 kilometers"
] | 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 an ice skate is 28 centimeters.
28 millimeters is too short. 28 meters and 28 kilometers are too long. |
What is the name of the colony shown? | [
"Maryland",
"Virginia",
"Iowa",
"West Virginia"
] | 1 | closed choice | grade5 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is Virginia.
The Virginia Colony included land that would later become part of the state of West Virginia. West Virginia was never its own colony. | |||
Not supported with pagination yet | Which text uses the word peruse in its traditional sense? | [
"Emmet perused a clothing catalog as he waited for his appointment, flipping through the pages distractedly.",
"Emmet perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift."
] | 1 | closed choice | grade12 | language science | writing-strategies | Word usage and nuance | Explore words with new or contested usages | Words change in meaning when speakers begin using them in new ways. For example, the word peruse once only meant to examine in detail, but it's now also commonly used to mean to look through in a casual manner.
When a word changes in meaning, its correct usage is often debated. Although a newer sense of the word may be... | The first text uses peruse in its traditional sense: to examine in detail.
Emmet perused a catalog from his wife's favorite clothing store, searching for the perfect birthday gift.
The second text uses peruse in its nontraditional sense: to look through in a casual manner.
Emmet perused a clothing catalog as he waited ... | |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Grandma Bella,",
"Dear grandma Bella,"
] | 0 | closed choice | grade3 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The second greeting is correct:
Its first word is capitalized, and it ends with a comma. Grandma Bella is capitalized because it is a proper noun. | |
Select the bird below. | [
"American bullfrog",
"albatross",
"red-eyed tree frog",
"hammerhead shark"
] | 1 | Birds have feathers, two wings, and a beak.
Birds are warm-blooded. Warm-blooded animals can control their body temperature.
A white stork is an example of a bird. | closed choice | grade4 | natural science | biology | Classification | Identify mammals, birds, fish, reptiles, and amphibians | Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals. | A hammerhead shark is a fish. It lives underwater. It has fins, not limbs.
Hammerhead sharks get their names from the shape of their heads. They have a wide, flat head and a small mouth.
A red-eyed tree frog is an amphibian. It has moist skin and begins its life in water.
A red-eyed tree frog has sticky pads on its toe... | |
Complete the statement.
Fluorine is (). | [
"a compound",
"an elementary substance"
] | 1 | The model below represents a molecule of fluorine. Fluorine is found in chemicals that are used to make some types of waterproof clothes. | closed choice | grade5 | natural science | chemistry | Atoms and molecules | Classify elementary substances and compounds using models | All substances are made of one or more chemical elements, or types of atoms. Substances that are made of only one chemical element are elementary substances. Substances that are made of two or more chemical elements bonded together are compounds.
Every chemical element is represented by its own symbol. For some element... | Count the number of chemical elements represented in the model. Then, decide if fluorine is an elementary substance or a compound.
In this model, both balls are labeled with F. So, the model shows you that fluorine is made of one chemical element.
Substances made of only one chemical element are elementary substances. ... | |
Not supported with pagination yet | What is the source of the allusion in the sentence below?
Julie warned her youngest son not to cry wolf while wrestling with his older brother. | [
"U.S. history",
"a fable"
] | 1 | closed choice | grade8 | language science | figurative-language | Literary devices | Recall the source of an allusion | An allusion is a brief mention of something or someone well known, often from mythology, history, or literature. An allusion lets you reference ideas from an entire story in just a few words.
"I'd better get home before I turn into a pumpkin!" Lila remarked.
Here, Lila alludes to the fairy tale "Cinderella," in which C... | The source of the allusion cry wolf is a fable.
In the fable "The Boy Who Cried Wolf," a shepherd boy repeatedly tricks people in his village by falsely claiming that a wolf is coming to eat his flock. When a wolf actually comes and the boy cries for help, nobody believes him or comes to his aid.
The allusion cry wolf ... | |
Not supported with pagination yet | Suppose Vicky decides to see the hippopotamuses. Which result would be a cost? | [
"Vicky will spend more time walking to the hippopotamuses. They are on the other side of the zoo, but the storks are close by.",
"Vicky will enjoy seeing the hippopotamuses more than she would have enjoyed seeing the storks."
] | 0 | Vicky is deciding whether to see the hippopotamuses or the storks at the zoo. She wants to see lots of animals, but the zoo is closing soon. | closed choice | grade5 | 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 Vicky wants or needs:
Vicky will spend more time walking to the hippopotamuses. They are on the other side of the zoo, but the storks are close by. |
Not supported with pagination yet | Which greeting is correct for a letter? | [
"Dear Aunt Annie,",
"Dear aunt annie,"
] | 0 | closed choice | grade3 | language science | punctuation | Formatting | Greetings and closings of letters | A letter starts with a greeting and ends with a closing. For each one, capitalize the first word and end with a comma. You should also capitalize proper nouns, such as Aunt Sue.
Dear Aunt Sue,
I'm glad you could come to my party, and
thank you for the birthday gift. I could not have
asked for a better one! Every time I... | The first greeting is correct:
Its first word is capitalized, and it ends with a comma. Aunt Annie is capitalized because it is a proper noun. | |
Not supported with pagination yet | How long is a road from one end of a city to the other? | [
"10 meters",
"10 kilometers"
] | 1 | 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 road from one end of a city to the other is 10 kilometers.
10 meters is too short. |
Which solution has a higher concentration of pink particles? | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | 1 | The diagram below is a model of two solutions. Each pink 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 pink particles represent the solute. To figure out which solution has a higher concentration of pink particles, look at both the number of pink particles and the volume of the solvent in each container.
Use the concentration formula to find the number of pink particles per milliliter.
... | |
In this food chain, the sludge worm is a consumer. Why? | [
"It makes its own food.",
"It eats another organism."
] | 1 | This diagram shows a food chain from the River Frome, a freshwater ecosystem in England. | closed choice | grade4 | natural science | biology | Ecosystems | Identify roles in food chains | Every organism needs food to stay alive. Organisms get their food in different ways. A food chain shows how organisms in an ecosystem get their food.
Producers make their own food. Many producers use carbon dioxide, water, and sunlight to make sugar. This sugar is food for the producer.
Consumers eat other organisms. C... | In this food chain, the sludge worm is a consumer because it eats another organism. The sludge worm in this food chain eats the macroalgae. | |
Not supported with pagination yet | Which tense does the sentence use?
The cousins will complete the puzzle before long. | [
"past tense",
"future tense",
"present 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, complete. The verb tells you about something that is going to happen. | |
Think about the magnetic force between the magnets in each pair. Which of the following statements is true? | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller 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, but some of them are different sizes and shapes. | closed choice | grade5 | natural science | physics | Magnets | Compare magnitudes of magnetic forces | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two magnets,... | Magnet sizes affect the magnitude of the magnetic force. Imagine magnets that are the same shape and made of the same material. The smaller the magnets, the smaller the magnitude of the magnetic force between them.
Magnet A is the same size in both pairs. But Magnet B is smaller in Pair 2 than in Pair 1. So, the magnit... | |
What is the capital of South Dakota? | [
"Des Moines",
"Lansing",
"Sioux Falls",
"Pierre"
] | 3 | closed choice | grade4 | social science | geography | State capitals | Identify state capitals of the Midwest | Pierre is the capital of South Dakota. | |||
Which better describes the Great Barrier Reef ecosystem? | [
"It has water with not much salt. It also has many different types of organisms.",
"It has salty water. It also has many different types of organisms."
] | 1 | Figure: Great Barrier Reef.
The Great Barrier Reef is a tropical coral reef ecosystem near the northeastern coast of Australia. | closed choice | grade3 | natural science | biology | Ecosystems | Describe ecosystems | An ecosystem is formed when living and nonliving things interact in an environment. There are many types of ecosystems. Here are some ways in which ecosystems can differ from each other:
the pattern of weather, or climate
the type of soil or water
the organisms that live there | A tropical coral reef is a type of ecosystem. Tropical coral reefs have the following features: shallow, salty water, bright sunlight, and many different types of organisms. So, the Great Barrier Reef has salty water. It also has many different types of organisms. | |
Not supported with pagination yet | What does the verbal irony in this text suggest?
According to Mr. Carter's kids, his snoring is as quiet as a jackhammer. | [
"The snoring occurs in bursts.",
"The snoring is loud."
] | 1 | closed choice | grade7 | language science | figurative-language | Literary devices | Interpret figures of speech | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Verbal irony involves saying one thing but implying something very different. People often use verbal irony when they are being sarcastic.
Olivia seems thrilled that her car keeps breaking dow... | The text uses verbal irony, which involves saying one thing but implying something very different.
As quiet as a jackhammer suggests that the snoring is loud. A jackhammer is not quiet, and neither is Mr. Carter's snoring. | |
Not supported with pagination yet | Is the following trait inherited or acquired?
Troy plays baseball. | [
"acquired",
"inherited"
] | 0 | closed choice | grade5 | natural science | biology | Traits and heredity | Identify inherited and acquired traits | Organisms, including people, have both inherited and acquired traits. Inherited and acquired traits are gained in different ways.
Inherited traits are passed down through families. Children gain these traits from their parents. Inherited traits do not need to be learned.
Acquired traits are gained during a person's lif... | People are not born knowing how to play baseball. Instead, some people learn how to play baseball. Playing the sport takes practice. So, playing baseball is an acquired trait. | |
Will these magnets attract or repel each other? | [
"repel",
"attract"
] | 1 | Two magnets are placed as shown. | closed choice | grade5 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a south pole (... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The north pole of one magnet is closest to the south pole of the other magnet. Opposite poles attract. So, these magnets will attract each other. | |
Which country is highlighted? | [
"the Dominican Republic",
"Saint Kitts and Nevis",
"Dominica",
"Haiti"
] | 0 | closed choice | grade8 | social science | geography | The Americas: geography | Identify and select countries of the Caribbean | This country is the Dominican Republic.
Why does the Dominican Republic share its island with another country?
The Dominican Republic and Haiti share the island of Hispaniola. It is home to the earliest European settlements in the Americas. Christopher Columbus founded the first European settlement on the island in 149... | |||
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
caribou - crunch | [
"cuff",
"clock"
] | 1 | closed choice | grade8 | language science | reference-skills | Reference skills | Use guide words | Guide words appear on each page of a dictionary. They tell you the first word and last word on the page. The other words on the page come between the guide words in alphabetical order.
To put words in alphabetical order, put them in order by their first letters. If the first letters are the same, look at the second let... | Put the words in alphabetical order.
Since clock is between the guide words caribou - crunch, it would be found on that page. | |
Not supported with pagination yet | According to the passage, which statement is true? | [
"The Senate is a part of Congress.",
"Congress does not have legislative power."
] | 0 | The Legislative Branch is described in Article I of the United States Constitution. Read Section 1 of Article I. Then answer the question.
All legislative powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives.
legislative: law-making
veste... | closed choice | grade8 | social science | civics | Government | The Legislative Branch | ||
What type of rock is schist? | [
"metamorphic",
"sedimentary"
] | 0 | Schist is a type of rock. It can form when a rock is changed by heating and squeezing. This piece of schist is dotted with dark-gray mineral grains. | closed choice | grade3 | natural science | earth-science | Rocks and minerals | Classify rocks as igneous, sedimentary, or metamorphic | Igneous rock is formed when melted rock cools and hardens into solid rock. This type of change can occur at Earth's surface or below it.
Sedimentary rock is formed when layers of sediment are pressed together to make rock. This type of change occurs below Earth's surface.
Metamorphic rock is formed when a rock is chang... | Schist is a metamorphic rock. Like other metamorphic rocks, it forms when a rock is changed by heating and squeezing.
The center of our planet is very hot. Deep below Earth's surface, rocks can be heated to high temperatures. The rocks can also be squeezed by the weight of rocks around them. Sometimes, the heating and ... | |
Not supported with pagination yet | What do these two changes have in common?
a copper statue turning green
rust forming on a bicycle frame | [
"Both are caused by heating.",
"Both are only physical changes.",
"Both are chemical changes.",
"Both are caused by cooling."
] | 2 | 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.
Rust forming on a bicycle frame is a chemical change. Oxygen in the air reacts with iron in the bi... | |
Which continent is highlighted? | [
"North America",
"Australia",
"Asia",
"Antarctica"
] | 2 | closed choice | grade5 | 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. | ||
Will these magnets attract or repel each other? | [
"attract",
"repel"
] | 1 | Two magnets are placed as shown. | closed choice | grade4 | natural science | physics | Magnets | Identify magnets that attract or repel | Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnets. The no... | To predict if these magnets will attract or repel, look at which poles are closest to each other.
The south pole of one magnet is closest to the south pole of the other magnet. Like poles repel. So, these magnets will repel each other. | |
What is the name of the colony shown? | [
"Massachusetts",
"North Carolina",
"New Jersey",
"Ohio"
] | 1 | closed choice | grade4 | social science | us-history | English colonies in North America | Identify the Thirteen Colonies | The colony is North Carolina. | |||
Is the following statement about our solar system true or false?
The smallest planet is made mainly of rock. | [
"false",
"true"
] | 1 | Use the data to answer the question below. | true-or false | grade6 | 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. | The table tells you that the smallest planet is Mercury and that Mercury is made mainly of rock. So, the smallest planet is made mainly of rock. | |
Identify the question that Emmett's experiment can best answer. | [
"Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?",
"Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?"
] | 0 | The passage below describes an experiment. Read the passage and then follow the instructions below.
Emmett divided 40 evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, Emmett ... | closed choice | grade6 | natural science | science-and-engineering-practices | Designing experiments | Identify the experimental question | Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plants was gr... | ||
Not supported with pagination yet | Read the following text from a student essay. How can the writer best improve his or her grammar and mechanics?
Everyone agree that recess is important for children in elementary school, but what about middle school students? I believe that students in middle school needs time to relax and have fun during the school da... | [
"by fixing subject-verb agreement errors",
"by adding missing commas"
] | 0 | closed choice | grade6 | language science | writing-strategies | Editing and revising | Suggest appropriate revisions | When you review a fellow student's writing, try to make your feedback clear and specific. You can use questions such as the following to guide your feedback:
Ideas and development: Does the writer express a clear main idea and develop it with evidence, examples, and analysis?
Organization: Does the writer order ideas i... | The writer could best improve his or her grammar and mechanics by fixing subject-verb agreement errors.
For example, the writer could change the first underlined verb to agree with the indefinite pronoun everyone and the others to agree with their simple subjects.
Everyone agree that recess is important for children in... | |
Is the following statement about our solar system true or false?
Jupiter's volume is more than ten times as large as Saturn's volume. | [
"true",
"false"
] | 1 | Use the data to answer the question below. | true-or false | grade8 | 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.
The volume of a planet is a very large quantity. Large quantities such as this are often written in scientific notation.
For ex... | To determine if this statement is true, calculate the value of ten times the volume of Saturn.
Then compare the result to the volume of Jupiter. The volume of Jupiter is 1.43 x 10^15 km^3, which is less than 8.27 x 10^15 km^3. So, Jupiter's volume is less than ten times as large as Saturn's volume. | |
Not supported with pagination yet | What is the volume of a bathtub? | [
"310 milliliters",
"310 liters"
] | 1 | Select the better estimate. | closed choice | grade5 | natural science | units-and-measurement | Units and measurement | Choose metric units of volume | Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
Volume is a measurement of how much space something takes up.
There are many different units of volume. When you are using metric units, volume may be written in units of milliliters or liters.... | The better estimate for the volume of a bathtub is 310 liters.
310 milliliters is too little. |
Not supported with pagination yet | Which word would you find on a dictionary page with the following guide words?
angle - assign | [
"architect",
"afford"
] | 0 | 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 architect is between the guide words angle - assign, it would be found on that page. | |
Complete the sentence.
The Saharan Atlas formed at a () boundary. | [
"convergent",
"transform",
"divergent"
] | 0 | Read the passage and look at the picture.
The Saharan Atlas, a mountain range in northern Africa, began to form millions of years ago as the Eurasian Plate and the African Plate moved toward each other. As the plates collided, the continental crust was forced upward to form tall mountains.
Along the sides of the mounta... | closed choice | grade8 | natural science | earth-science | Plate tectonics | Describe tectonic plate boundaries around the world | The outer layer of Earth is broken up into many pieces called tectonic plates, or simply plates. The breaks between plates are called plate boundaries. Plate boundaries are classified by the way the plates are moving relative to each other:
At a divergent boundary, two plates are moving away from each other.
At a trans... | To figure out what type of plate boundary formed the Saharan Atlas, you need to know how the tectonic plates interacted. To find this out, read the passage carefully.
The Saharan Atlas, a mountain range in northern Africa, began to form millions of years ago as the Eurasian Plate and the African Plate moved toward each... | |
Not supported with pagination yet | Which figure of speech is used in this text?
You're easy on the eyes,
Hard on the heart
—Terri Clark, "You're Easy on the Eyes" | [
"anaphora",
"antithesis"
] | 1 | closed choice | grade11 | language science | figurative-language | Literary devices | Classify the figure of speech: anaphora, antithesis, apostrophe, assonance, chiasmus, understatement | Figures of speech are words or phrases that use language in a nonliteral or unusual way. They can make writing more expressive.
Anaphora is the repetition of the same word or words at the beginning of several phrases or clauses.
We are united. We are powerful. We are winners.
Antithesis involves contrasting opposing id... | The text uses antithesis, the contrasting of opposing ideas within a parallel grammatical structure.
Clark contrasts two descriptions of a person, easy on the eyes and hard on the heart. |
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.