Why doesn't the earth fall up? : and other not such dumb questions about motion /

Answers nine questions about motion, explaining Newton's Laws of Motion, gravity, centrifugal force, and other principles of movement.

Bibliographic Details
Main Author:	Cobb, Vicki
Other Authors:	Enik, Ted (Illustrator)
Format:	Book
Language:	English
Published:	New York : Lodestar Books, [1988]
Edition:	1st ed.
Subjects:	Motion > Miscellanea > Juvenile literature. Motion. Questions and answers.