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Screws
by Manolis, Kay
$21.53
List Price: $26.95
Save: $5.42 (20%)
Description
Screws are simple machines used for many different jobs. The concept of a screw is used in snow blowers, drills, and presses. Kids will learn how screws work and how they are used in complex machines.
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Product Details
- Aug 1, 2009 Pub Date:
- 1600143229 ISBN-10:
- 9781600143229 ISBN-13:
- English Language
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