Simple Machines

by Cindy Davis

Simple Machines covers these concepts:

work is done when a force is used to move something over a distance some jobs take more work that other jobs machines make work easier machines may have few many, or no moving parts the lever is a simple machine the wheel and axle is a simple machine the pulley is a simple machine the inclined plane is a simple machine the screw is a simple machine the wedge...

• Format: Paperback
• Language: English
• ISBN: 155799689X
• ISBN13: 9781557996893
• Release Date: November 1998
• Publisher: Evan-Moor Educational Publishers
• Length: 80 Pages
• Weight: 0.04 lbs.
• Dimensions: 0.3" x 8.7" x 11.0"
• Age Range: 6 to 8 years
• Grade Range: Grades 1 to 3