Which way is up?
By: written by Gail Kay Haines ; illustrated by Lisa Amoroso.
Contributors: Amoroso, Lisa, ill.
Edition: 1st ed.
Publisher: Atheneum
Published: 1987
Place of publication: New York
Language: eng
Number of pages: 32
Subjects: Gravitation -- Juvenile literature.; Gravity.
Description: An explanation of gravity and the discoveries that have been made about it--although we still don't know exactly how it works.