Simple Machines

By Ade Deane-Pratt

Pulleys, wedges, and levers--we use simple machines all the time, but how many of us stop and think about how they work? Fun, informative text and supporting images and diagrams explain what is behind the power of simple machines and tell readers how to make some of their very own.

• Format: Library Binding
• Language: English
• ISBN: 144885279X
• ISBN13: 9781448852796
• Release Date: August 2011
• Publisher: PowerKids Press
• Length: 32 Pages
• Weight: 0.80 lbs.
• Dimensions: 0.3" x 8.6" x 10.7"
• Age Range: 8 to 10 years
• Grade Range: Grades 3 to 5