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The Wedge (Simple Machines.)
The Wedge - Simple Machines.
Author: Patricia Armentrout
Text and pictures introduce the wedge, a simple machine placed between objects to split, tighten, or secure a hold.
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ISBN-13: 9781571031815
ISBN-10: 1571031812
Pages: 24
Reading Level: Ages 9-12
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Publisher: Rourke Publishing
Book Type: Library Binding
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