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Levers

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Book Description

Readers learn how this simple machine makes it easier to lift, lower, and open things. They learn the three types of levers: first-class, second-class, and third-class. By the end of the book, readers know the difference between complex and simple machines and how levers are used in everyday life to make work easier.

  • ISBN: 9781503803039 |
  • Hardcover: 24 pages |
  • Publisher: The Child's World, Inc. |
  • Publication date: |
  • Language: English |
  • Format: Ebook