01003cam a2200277 4500 622826130 TxAuBib ||||||s1983||||||||||||||||||||||||eng|u 81-047894 DLC TxAuBib How things work. [Washington, D.C. : National Geographic Society, 1983. 104 p. : col. ill., plans ; 28 cm. Books for world explorers Accompanied by "Classroom activities folder" containing work sheets, etc. Bibliography: p. 101. Includes index. Uses such familiar objects as a bicycle, neon sign, calculator, and hot air balloon to introduce the field of physics. Physics Juvenile literature. Physics. Technology Juvenile literature. Technology. National Geographic Society (U.S.) Books for world explorers. TXHAP