Note to Educators:
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Library of Congress Cataloging-in-Publication Data
The Cataloging-in-Publication Data for Let’s Explore Gravity is on file at the Library of Congress.
ISBN 978-1-5124-8269-0 (lib. bdg.)
ISBN 978-1-5415-1082-1 (pbk.)
ISBN 978-1-5124-8273-7 (EB pdf)
Manufactured in the United States of America
1 – CG – 12/31/17
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