Simple Machines

by D.J. Ward

Book Overview

Read and find out about six simple machines--the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw--in this colorfully illustrated nonfiction picture book.

Machines help make work easier, like when you need to lift something heavy or reach way up high. Can you adjust a seesaw to lift an elephant? What happens when you combine two or more simple machines? Read and find out out in the proven winner Simple...

• Format: Paperback
• Language: English
• ISBN: 0062321471
• ISBN13: 9780062321473
• Release Date: October 2015
• Publisher: HarperCollins
• Length: 40 Pages
• Weight: 0.35 lbs.
• Dimensions: 0.2" x 9.8" x 7.8"
• Age Range: 4 to 8 years
• Grade Range: Preschool to Grade 3