Sensational Science Projects with Simple Machines

by Robert Gardner

Book Overview

How can a 50-pound boy lift a 200-pound man? How does a wheelbarrow work? Is it easier to roll a toy truck up an inclined plane or just pick it straight up? What is an easy way to move a load of... This description may be from another edition of this product.

• Format: Library Binding
• Language: English
• ISBN: 0766025853
• ISBN13: 9780766025851
• Release Date: January 2006
• Publisher: Enslow Elementary
• Length: 48 Pages
• Weight: 0.64 lbs.
• Dimensions: 0.3" x 7.6" x 9.3"
• Age Range: 8 to 10 years
• Grade Range: Grades 3 to 5