00796cam a2200253 4500 142451654 TxAuBib 20011010120000.0 011010s1999||||||||||||||||||||||||eng|u TxAuBib Bonnet, Bob. Physics / by Bob Bonnet & Dan Keen; illustration by Frances Zweifel. 1st edition. New York : Sterling Publishing Company, 1999. 94 p. : ill. ; 32 cm. Science fair projects Includes index. 20011010. Physics Experiments Juvenile literature. Science projects Juvenile literature. Keen, Dan. Sweifel, Frances. Science fair projects.