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Lever, Screw, and Inclined Plane: The Power of Simple Machines
Gare Thompson
3.00
6 ratings
1 review
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How simple machines work and how they help us live our lives.
National Geographic supports K-12 educators with ELA Common Core Resources.
Visit www.natgeoed.org/commoncore for more information.
48 pages, Hardcover
First published September 12, 2006
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About the author
Gare Thompson
102 books
12 followers
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3.00
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Maximus
126 reviews
2 followers
November 11, 2011
its so dumb
2011-summer-then-1st-grade
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