Author(s): Emily Sohn
Format: Paperback
No. of Pages: 48
Publisher: Norwood House Paper Editions
Language: English
Date Published: 2012-01-01
Dimensions: 177.8 x 215.9 x 2.54mm
Publication City/Country:
Edition:
Illustrations: Line drawings, color; Line drawings, black and white; Illustrations, color; Illustrations, black and white

Describes the different jobs that levers and pulleys can perform and how they are able to do them. As readers use scientific inquiry to learn about how force, energy, and work make using these simple machines possible and effective, an activity based on real world situations challenges them to apply what theyve learned in order to solve a puzzle.