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Why We Need Sleep

Health Development Biology Human Body

All animals, including humans, need to sleep. Scientists have several theories that help explain why we sleep. In this episode of But Why, a child sleep psychologist describes the evolutionary theory of sleep and explains how sleep benefits the brain and body. Listen to learn more about the science of sleep and its importance for healthy growth and development.

?L LEXILE AUDIO MEASURE
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Story Length: 6:12

Listen to the Story:

Listening Comprehension Questions

  • In what ways did Andrew Carnegie’s libraries serve their communities?
  • How did Carnegie benefit from a library when he was growing up?
  • Which personality traits helped propel Carnegie from poverty to riches? Bring specific details from the story to support your ideas.
  • According to Carnegie, what should rich people do with their money and why? Why was Carnegie known as both generous and “brutal”?

Discussion Themes

  • In your opinion, what should really rich people do with their fortunes?
  • What does it take for a person to rise from “rags to riches”?

Socrative users can import these questions using the following code: SOC-1234

Listening Organizers

  • Fact, Question, Response

  • Language Identification Organizer

  • Deeper Meaning Chart