01291cam a2200325 4500 10166417 TxGeo 20010219120000.0 990202s2000||||||||||||||||||||||||eng|u 99018303 9780736803984 073680398X (OCoLC)40848553 DLC DLC TxGeo Schaefer, Lola M, 1950- Back and forth / by Lola Schaefer ; consulting editor, Gail Saunders-Smith, Ph.D. ; consultant, P. W. Hammer, Ph.D., Acting Manager of Education, American Institute of Physics. Mankato, Minn : Pebble Books, an imprint of Capstone Press, 2000. 24 p. : col. ill. ; 19 cm. way things move (Series, The) Index: p. 24. Glossary: p. 22. Bibliographical references: p. 23. Simple text and photographs provide examples of back and forth movement, including the pendulum on a clock, a child in a rocking chair, and a tree in the wind. 20001228. Motion. Saunders-Smith, Gail. Hammer, P. W. The way things move (Series.) QS5