types of simple machines
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How can pulling down make something go up? How do carnival rides work? What makes the hands on a watch go around? How does pedaling a bicycle make it move? This title shows you how different kinds of ...
Forces and motion are key concepts in the elementary science curriculum. How Simple Machines Work uses easy-to-read text and full-color photographs to help young readers understand the principles ...
Provides examples to describe levers as simple machines used to lift, push, or move a load. Includes an activity.
Feed kids information that will stick to their ribs! These meaty books introduce children to the USDA food guide pyramid with simple text and vibrant photography, helping them make healthy food ...
Big or small, pulleys help you move it all. You couldn't raise a flag and cranes couldn't move heavy objects without the help of pulleys. Read Pulleys to the Rescue to learn what pulleys are, how ...
Illustrated by Frances Zweifel. The fundamentals of science are brought to life in a year's worth of fun and educational hands-on experiments that can be performed easily and inexpensively at home.
Simple Science Experiments With Marbles
Simple Science Experiments With Circles
Simple Science Experiments With Light