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What Is a Pulley? (Welcome Books' Simple Machines Series)

AUTHOR: Douglas G. Lloyd
ISBN: 0516239619
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	HOME--->> Children's Book --->>Science for Children --->>Heavy Machinery Books for Children

	Heavy Machinery Books for Children

Book Review

What Is a Pulley? (Welcome Books' Simple Machines Series)
- Book Reviews, by Douglas G. Lloyd

What Is a Pulley? (Welcome Books' Simple Machines Series)

ANNOTATION

Introduces pulleys and how they work to raise flags, as well as heavy objects.

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