Machines & Motion

By Debbie Lawrence and Richard Lawrence

Book Overview

How did the ancient Egyptians build the pyramids? How do we build giant skyscrapers today? To understand these marvels, you need to understand simple machines such as levers and inclined planes.... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 1600921582
• ISBN13: 9781600921582
• Release Date: January 2009
• Publisher: Answers in Genesis
• Length: 122 Pages
• Weight: 0.95 lbs.
• Dimensions: 0.4" x 8.3" x 10.6"
• Age Range: 8 to 12 years
• Grade Range: Grades 3 to 7