Pulleys and Gears (Machines in Action)

By Angela Royston

Book Overview

What pulls a flag up a flagpole? How does a bicycle chain help the bicycle move? What makes an escalator move? Pulleys and gears are simple machines that can be used to make other machines work. When... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 1403440859
• ISBN13: 9781403440853
• Release Date: July 2003
• Publisher: Heinemann/Raintree
• Length: 32 Pages
• Weight: 0.35 lbs.
• Dimensions: 10.3" x 0.3" x 7.8"
• Age Range: 8 to 10 years
• Grade Range: Grades 3 to 5