Groovy Gravity

Learn about gravity in these easy-to-read books. Gravity's force, moon's orbit, and their effects are explained with simple text and matching illustrations. A science activity, fun facts section, glossary, and index aid students in learning about the gravity pulling on them. Special thanks to content consultant Paul Ohmann Ph.D.

© 2020 Abdo Publishing Group (دفتر الصوت ): 9781629688961

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