Why We Sleep RAZ Level P

How is sleep similar to food and water?

• It keeps us healthy.

• It keeps us full.

• It keeps us hydrated.

• It keeps us hungry.

According to the author, which of the following sounds might make a sleeping person up?

• a mosquito buzzing

• a bird chirping outside

• a door closing quietly

• a car horn honking loudly

Which food might make a person feel more awake after eating it?

• a turkey sandwich

• broccoli

• chocolate ice cream

• grapes

What is something our brains do when we are sleeping?

• shut off

• store memories

• learn new information

• stop working

Read this sentence from the book: We need sleep to function well. Which word could replace function in this sentence and share the same meaning?

• work

• dream

• read

• nap

Which stage of sleep happens when people first feel sleepy and start to doze?

• stage 3 NREM

• REM

• stage 1 NREM

• stage 2 NREM

What might happen if we get too little sleep?

• We might stay healthy and fight sickness.

• We might store a lot of memories.

• We might learn new concepts faster.

• We might make mistakes on our schoolwork.

Which of the following is the stage of sleep when we begin to dream?

• REM

• stage 3 NREM

• stage 2 NREM

• stage 1 NREM

In which group would getting enough sleep belong?

• ways to help your brain

• ways to get older

• ways to help you make money

• ways to run faster

Read this sentence: Athletes need enough rest to restore their body and make it stronger. What does it mean to restore?

• to redo something because it was wrong

• to return something to a store

• to redo something for a different reason

• to return something to how it was earlier