Simple Machines Forces in Action (Paperback)
|Author: Buffy Silverman|
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|This series offers an exciting apporach to understanding and investigation. Each book helps readers conduct their own experiments and activities, and to learn more about the world around them. Each title includes clear instructions and illustrations, fascinating facts and stunning photographs.|
From the Publisher:
Introduces simple machines, including screws, levers, wedges, and pulleys, describes how each makes everyday life easier, and provides activities demonstrating these machines in action.