Download or read book Machines & Motion written by Debbie Lawrence and published by . This book was released on 2009-03-01 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. Machines and Motion contains 35 lessons that will teach your child about simple machines and the laws of motion, which are the basic principles governing the physical world around us. 35 lessons. Full-color.