Pulleys and Gears

by David Glover

Book Overview

How can pulling down make something go up? How do carnival rides work? What makes the hands on a watch go around? How does pedaling a bicycle make it move? This title shows you how different kinds of these two simple machines are all around you to make your work and play easier.

• Format: Hardcover
• Language: English
• ISBN: 1403400571
• ISBN13: 9781403400574
• Release Date: January 2002
• Publisher: Heinemann Educational Books
• Length: 24 Pages
• Weight: 1.35 lbs.
• Dimensions: 0.1" x 7.7" x 10.3"
• Age Range: 7 to 9 years
• Grade Range: Grades 2 to 4