Reading Expeditions (Science: Physical Science): Machines Make It Move

by Stephen M. Tomecek

Simple machines make work easier. Discover how simple and compound machines lift things up, roll things along, turn things around, and even help your own body work. Learn how simple machines helped... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 079228884X
• ISBN13: 9780792288848
• Release Date: January 2007
• Publisher: National Geographic Society
• Length: 29 Pages
• Weight: 0.25 lbs.
• Age Range: 8 to 12 years
• Grade Range: Grades 3 to 7