Pushes and Pulls
Hardcover
$25.32
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Why does air escape from an untied balloon?
What stops us from floating away?
Find out the answers to these questions and more with fun experiments that show you how and why different forces work!
This title features:
* Simple experiments to test basic scientific ideas
* Clear explanations for every experiment
* Amazing facts
* Photographs and cartoons
* Glossary to explain new and difficult words
* Notes for parents and teachers






















