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9781403440860

Ramps and Wedges

by
  • ISBN13:

    9781403440860

  • ISBN10:

    1403440867

  • Format: Paperback
  • Copyright: 2003-04-01
  • Publisher: Heinemann/Raintree

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Supplemental Materials

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Summary

Why do skiers use a zigzag path down steep slopes? How does a zipper work? How does a lock work? Ramp and wedges are simple machines that can be used to make other machines work. When you open a lock, cut something with scissors, zip up your coat, or use a doorstop you are using ramps or wedges. Ramps and Wedges explains what these machines are and how they help you do everyday things.

Table of Contents

What Is a Ramp?
4(6)
Slopes and Slides
6(2)
Building the Pyramids
8(2)
Zigzag Journeys
10(2)
What Is a Wedge?
12(2)
Powerful Wedges
14(2)
Sharp Wedges
16(2)
Saws
18(2)
Scissors and Cutters
20(2)
Spades, Jackhammers, and Plows
22(2)
The Incredible Zipper
24(2)
Lock and Key
26(2)
Make a Zigzag Bottle Run
28(2)
Glossary 30(1)
Answers to Questions 31(1)
Index 32(1)
More Books to Read 32

Supplemental Materials

What is included with this book?

The New copy of this book will include any supplemental materials advertised. Please check the title of the book to determine if it should include any access cards, study guides, lab manuals, CDs, etc.

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