Updated 4th Edition! Full color! 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.
Includes Student Text and Teacher Supplement
Good Condition
Original price was: $55.00.$25.00Current price is: $25.00.
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