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Stanford 10 study materials
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Stanford 10 practice questions

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Question 1Reading

Bees do more than make honey. As they move from flower to flower, they carry pollen. This pollen helps plants make seeds and fruit. Many foods people eat depend on bee pollination. What is the main idea of this passage?

  1. Flowers need sunshine in order to grow.
  2. Pollen is a kind of seed.
  3. Bees help plants and the food supply. Correct answer.
  4. Bees make honey for people to eat.

Explanation

The main idea must cover the whole passage, not just one detail. The passage explains that bees carry pollen, which helps plants make seeds and fruit, and that many foods depend on this process.

Question 2Reading

The trail was treacherous, so we walked slowly and held onto the rocks. What does treacherous mean in this sentence?

  1. crowded
  2. dangerous Correct answer.
  3. smooth
  4. short

Explanation

Context clues show that the hikers walked slowly and held onto rocks, which suggests the trail was unsafe. Treacherous means dangerous or risky.

Question 3Reading

Maya looked at the dark clouds, then grabbed her umbrella. What can you infer?

  1. She lost her umbrella.
  2. She is going to the beach.
  3. She likes clouds.
  4. She expects rain. Correct answer.

Explanation

An inference is a reasonable conclusion based on details. Dark clouds and taking an umbrella strongly suggest that Maya expects rain.

Question 4Reading

First, rinse the lettuce. Next, tear it into pieces. Then add dressing and toss. Which step happens right after rinsing the lettuce?

  1. tear the lettuce Correct answer.
  2. toss the salad
  3. serve the salad
  4. add dressing

Explanation

Sequence words such as first, next, and then show the order of steps. The word next introduces the step that follows rinsing.

Question 5Reading

A poster says, "Save water! Turn off the tap while brushing your teeth." Why was this poster written?

  1. to persuade people to save water Correct answer.
  2. to describe how teeth grow
  3. to explain the history of water
  4. to tell a story about a tap

Explanation

Author's purpose is the reason a text was written. The command "Save water!" and the suggestion for action show that the poster is meant to persuade readers.

Question 6Reading

Which sentence states a fact?

  1. Mondays are the worst day.
  2. Water freezes at 0 degrees Celsius. Correct answer.
  3. Blue is the prettiest color.
  4. Everyone should like ice cream.

Explanation

A fact is a statement that can be checked or proved. The freezing point of water can be measured, so it is a fact.

Question 7Reading

Choose the word that is closest in meaning to rapid.

  1. slow
  2. fast Correct answer.
  3. quiet
  4. old

Explanation

A synonym is a word with a similar meaning. Rapid means happening quickly or moving fast.

Question 8Reading

The library has many rules. Visitors must speak softly. Food and drinks are not allowed. Books must be returned on time. Which detail supports the idea that the library is a quiet place?

  1. Visitors must speak softly. Correct answer.
  2. Food and drinks are not allowed.
  3. Books must be returned on time.
  4. The library has many rules.

Explanation

A supporting detail explains or proves the main idea. Speaking softly directly supports the idea that the library is quiet.

Question 9Reading

A fox tried many times to reach some grapes but failed. It walked away saying, "Those grapes were probably sour anyway." What lesson does this story teach?

  1. Grapes taste better when they are ripe.
  2. People scorn what they cannot have. Correct answer.
  3. Practice helps animals reach their goals.
  4. Foxes are cleverer than most other animals.

Explanation

A theme is a lesson about life that a story suggests. The fox decides the grapes are bad only after failing to get them, showing that people may criticize what they cannot obtain.

Question 10Reading

Some deserts are hot, while others are cold. Both kinds receive very little rain. How is the information organized?

  1. sequence
  2. comparison Correct answer.
  3. cause and effect
  4. problem and solution

Explanation

The passage points out similarities and differences between hot and cold deserts. Words such as while and both signal a comparison structure.

Question 11Reading

Even though Ben was tired, he stayed after practice to help stack the chairs. What does this show about Ben?

  1. He is forgetful.
  2. He dislikes practice.
  3. He is careless.
  4. He is helpful. Correct answer.

Explanation

Character traits are shown through actions. Staying to stack chairs even when tired shows that Ben is willing to help others.

Question 12Reading

Choose the word that is most nearly opposite in meaning to scarce.

  1. plentiful Correct answer.
  2. small
  3. limited
  4. rare

Explanation

An antonym is a word with the opposite meaning. Scarce means in short supply, so the opposite is plentiful.

Question 13Reading

The ground was wet, and drops fell from the roof. People carried umbrellas. What most likely happened?

  1. It was windy.
  2. It was sunny.
  3. It snowed.
  4. It rained. Correct answer.

Explanation

The details all point to the same conclusion: wet ground, dripping roofs, and umbrellas are evidence of rain.

Question 14Reading

Ants live in groups. They work together to find food and protect the nest. Each ant has a job. Which sentence best summarizes the passage?

  1. Ants protect the nest.
  2. Ants are insects.
  3. Ants work together in groups. Correct answer.
  4. Ants look for food.

Explanation

A summary should include the most important idea of the whole passage. The passage is mainly about ants cooperating in groups.

Question 15Reading

Because the bridge was closed, the bus took a longer route. Why did the bus take a longer route?

  1. The bridge was closed. Correct answer.
  2. The driver was new.
  3. The road was busy.
  4. The bus was late.

Explanation

A cause-and-effect relationship is signaled by because. The closure of the bridge caused the bus to use a longer route.

Question 16Reading

The classroom was a zoo after the fire drill. What does this sentence mean?

  1. The students had left the room quietly.
  2. The room smelled strongly of smoke.
  3. The classroom was filled with animals.
  4. The room was noisy and busy. Correct answer.

Explanation

A figurative comparison describes one thing as another to create a picture. Saying the classroom was a zoo means it was chaotic, noisy, and busy.

Question 17Reading

I packed my bag and hoped the bus would arrive soon. Who is telling this story?

  1. a person waiting for a bus Correct answer.
  2. a bus driver
  3. a person at home
  4. a person selling bags

Explanation

Point of view is shown by the narrator's words and actions. The speaker packed a bag and is waiting for a bus, so the narrator is a person waiting for a bus.

Question 18Reading

Which resource would best help you find the meaning of the word glacier?

  1. a cookbook
  2. a dictionary Correct answer.
  3. a map
  4. a phone book

Explanation

A dictionary is organized to provide word meanings, spellings, and pronunciations. It is the best resource for learning what glacier means.

Question 19Reading

The sky grew dark, and the wind picked up. Leaves blew across the yard. What will most likely happen next?

  1. The leaves will stop moving.
  2. The sun will shine.
  3. A storm will begin. Correct answer.
  4. The wind will disappear.

Explanation

A prediction should follow from the details given. Dark skies, stronger wind, and blowing leaves are signs that a storm is coming.

Question 20Reading

Once upon a time, a young girl found a magic key. What kind of text is this?

  1. a recipe
  2. a fairy tale Correct answer.
  3. a science article
  4. a news report

Explanation

The phrase once upon a time and the element of magic are common features of fairy tales.

Question 21Reading

A boy practices violin every day, even when his fingers hurt. At the concert, he plays well. What theme does this story suggest?

  1. Hard work brings progress. Correct answer.
  2. Music is easy for everyone to learn.
  3. Boys should practice every single day.
  4. Concerts are always exciting events.

Explanation

A theme is a general lesson about life. The boy's daily practice and improved performance suggest that effort leads to improvement.

Question 22Reading

The letter had no stamp, and the address was crossed out. It sat in the mailbox for weeks. What can you infer?

  1. The letter was very heavy.
  2. The letter was written yesterday.
  3. The letter was delivered quickly.
  4. It could not be mailed. Correct answer.

Explanation

An inference combines details to reach a logical conclusion. A missing stamp and crossed-out address would prevent mailing, which explains why the letter stayed in the mailbox.

Question 23Reading

The old house sagged, its windows cracked and its porch steps missing. What is the tone of this sentence?

  1. gloomy Correct answer.
  2. excited
  3. silly
  4. cheerful

Explanation

Tone is the feeling created by word choices. Sagging, cracked windows, and missing steps create a sad, gloomy mood.

Question 24Reading

The article says octopuses can change color. It also says they can squeeze through small spaces. Which conclusion is best supported?

  1. Octopuses are the smartest sea animals.
  2. Octopuses have special survival skills. Correct answer.
  3. Octopuses eat mostly plants.
  4. Octopuses live only in cold water.

Explanation

A supported conclusion must follow from the evidence given. Color change and squeezing through small spaces are abilities that help octopuses survive.

Question 25Reading

The speaker's argument was so vague that no one knew what she meant. What does vague mean in this sentence?

  1. well proved
  2. very loud
  3. too short
  4. not clear Correct answer.

Explanation

Context clues show that listeners did not understand the argument. Vague means unclear or not specific.

Question 26Reading

The hikers found the trail steep, but the view from the summit was magnificent. What does magnificent mean?

  1. rather common
  2. hard to see
  3. quite dangerous
  4. very beautiful Correct answer.

Explanation

Magnificent describes something that inspires admiration, so the view was very beautiful. The steep trail does not make the view dangerous, hard to see, or common.

Question 27Reading

Choose the word that means the opposite of generous.

  1. cheerful
  2. wealthy
  3. giving
  4. selfish Correct answer.

Explanation

An antonym is a word opposite in meaning. Generous means willing to give or share, and selfish means caring mainly about oneself.

Question 28Reading

In the word preview, what does the prefix pre- mean?

  1. after
  2. during
  3. again
  4. before Correct answer.

Explanation

The prefix pre- means before, as in preview or preheat. It signals that something comes earlier.

Question 29Reading

Which word is the contraction of they are?

  1. their
  2. they're Correct answer.
  3. they
  4. there

Explanation

A contraction combines words and uses an apostrophe in place of omitted letters. In they're, the apostrophe replaces the a in are.

Question 30Reading

A book gives numbered steps for building a birdhouse. What kind of text is it?

  1. an opinion essay
  2. a news story
  3. directions Correct answer.
  4. a friendly letter

Explanation

Numbered steps that tell how to make something are instructions, or procedural text. The purpose is to guide the reader through a process.

Question 31Reading

The kitten was timid and hid under the bed whenever visitors came. What does timid mean?

  1. hungry
  2. shy Correct answer.
  3. loud
  4. playful

Explanation

The clue hid under the bed whenever visitors came shows fear of new people. Timid means shy or easily frightened.

Question 32Reading

Which word would come first in alphabetical order?

  1. camera Correct answer.
  2. canyon
  3. candy
  4. candle

Explanation

Compare letters from left to right: all words begin with ca. The third letter m comes before n, so camera is first.

Question 33Reading

Marta feeds her dog every morning. She brushes his coat and fills his water bowl. Then she takes him for a walk. What is the paragraph mainly about?

  1. Marta's dog care Correct answer.
  2. how dogs learn tricks
  3. why Marta got a dog
  4. foods that dogs eat

Explanation

Each sentence tells something Marta does for her dog in the morning, so the paragraph is mainly about her dog care. The other choices are not mentioned.

Question 34Reading

A pamphlet explains which materials can be recycled and where to drop them off. What is the author's main purpose?

  1. to explain how to recycle Correct answer.
  2. to tell a story about a bin
  3. to persuade people to buy bins
  4. to describe a recycling truck

Explanation

A pamphlet that explains which materials to recycle and where to take them is giving information and directions. Its main purpose is to explain a process.

Question 35Reading

Maya checked her watch, gasped, and ran toward the station. What can you infer?

  1. She is waiting for a friend.
  2. She may be late. Correct answer.
  3. She is early for a train.
  4. She has lost her ticket.

Explanation

Checking a watch, gasping, and running are clues that time is short. A reader can infer she is afraid of missing something.

Question 36Reading

First, the seeds sprout. Next, the plant grows leaves. Finally, flowers open. How is this paragraph organized?

  1. by comparison
  2. in time order Correct answer.
  3. by cause and effect
  4. by problem and solution

Explanation

Signal words first, next, and finally show the order in which the steps happen. That organization is chronological, or time order.

Question 37Reading

Which detail best supports the idea that the puppy is playful?

  1. The puppy slept all afternoon.
  2. The puppy eats dinner at six.
  3. The puppy has brown and white fur.
  4. The puppy chased a ball. Correct answer.

Explanation

A detail supports an idea by giving evidence of it. Chasing a ball shows active, playful behavior.

Question 38Reading

In the sentence The river bank was muddy, what does bank mean?

  1. the river's edge Correct answer.
  2. a pile of snow
  3. a row of seats
  4. a place for money

Explanation

The context word river tells which meaning of bank is intended. Bank can mean a financial institution or the land along water.

Question 39Reading

Which source would best tell you the capital of Kenya?

  1. a cookbook
  2. a thesaurus
  3. an atlas Correct answer.
  4. a dictionary

Explanation

An atlas is a book of maps and geographic information, including countries and capitals. A dictionary or thesaurus covers words, and a cookbook covers food.

Question 40Reading

Nia shared her lunch with a classmate who forgot his. What does this show about Nia?

  1. She is careful with money.
  2. She is generous. Correct answer.
  3. She is shy around others.
  4. She is curious about things.

Explanation

Sharing lunch with a classmate who forgot his shows kindness and willingness to give. That behavior demonstrates generosity.

Question 41Reading

Lena poured batter into a pan and put it in the oven. What will most likely happen next?

  1. She will plant seeds.
  2. She will bake a cake. Correct answer.
  3. She will read a map.
  4. She will wash the family car.

Explanation

Batter in an oven is the beginning of baking a cake. A reader can predict the next step from this familiar sequence.

Question 42Reading

Why did the class cheer when the principal announced a snow day?

  1. They were glad about the snow day. Correct answer.
  2. They wanted extra homework that day.
  3. They were late for school again.
  4. They had lost their books at home.

Explanation

A cause explains why an effect happens. The announcement of a snow day is the cause, and cheering is the effect.

Question 43Reading

A paragraph tells how a boy teaches his dog to sit, stay, and come. Which sentence best summarizes the paragraph?

  1. A boy buys a new pet.
  2. A boy trains his dog. Correct answer.
  3. A dog sleeps indoors.
  4. A dog runs outside often.

Explanation

A summary states the main idea in a short form. The paragraph is about a boy teaching his dog behaviors, so that sentence captures the whole.

Question 44Reading

In a story, two friends argue over a game, then apologize and play together again. What theme is shown?

  1. Winning matters more than friends.
  2. Games are hard to learn.
  3. Friends should never disagree.
  4. Apology repairs friendship. Correct answer.

Explanation

A theme is a lesson about life that a story reveals. The friends argue, apologize, and reunite, showing that apology can repair a friendship.

Question 45Reading

Read: Sam opened the door and stepped into the rain. Who tells the story?

  1. Sam, the main character
  2. Sam's teacher at school
  3. a weather reporter on television
  4. a narrator outside the story Correct answer.

Explanation

The narrator uses Sam's name and would use the pronoun he rather than I or we. This shows a third-person narrator outside the story.

Question 46Reading

Read: The old clock in the hall coughed twice and then fell silent. What does the sentence suggest?

  1. Someone in the hall coughed.
  2. The clock was actually alive.
  3. It made two sounds and stopped. Correct answer.
  4. The clock had just been replaced.

Explanation

Personification gives a human action, coughing, to an object. Fell silent shows the clock stopped making noise after two sounds.

Question 47Reading

An article says, Bats hunt insects at night. They use echoes to find their way in darkness. Which conclusion is best supported?

  1. Bats can find prey without sight. Correct answer.
  2. Bats eat only fruit and seeds.
  3. Bats have very poor hearing.
  4. Bats sleep during the daytime hours.

Explanation

Using echoes in darkness implies bats rely on sound rather than sight to find insects. That supports the conclusion that they can locate prey without seeing it.

Question 48Reading

A writer says, Our town should build a new pool because the old one is always crowded and often closed for repairs. Which reason supports the writer's claim?

  1. Swimming pools are fun in summer.
  2. Many nearby towns also have pools.
  3. The old pool is crowded and closed. Correct answer.
  4. Swimming is healthy exercise for everyone.

Explanation

A reason supports a claim when it directly explains why the claim is true. Crowding and repair closures give evidence that the old pool is inadequate.

Question 49Reading

Read: Some students walk to school. Others ride the bus. A few come by car. How is the paragraph organized?

  1. by showing causes and their effects
  2. by placing events in time order
  3. by listing ways students travel Correct answer.
  4. by naming a problem and its solution

Explanation

The paragraph groups students by how they travel: walking, bus, and car. That is a list of categories rather than causes or steps.

Question 50Reading

Although the street was empty, the driver slowed and peered at each house number. What can you most reasonably infer?

  1. The driver is avoiding traffic.
  2. The driver needs an address. Correct answer.
  3. The driver is lost in a forest.
  4. The driver is racing a friend.

Explanation

Slowing down and peering at house numbers are clues that the driver is trying to find a specific place. The empty street makes racing or avoiding traffic unlikely.