Pottinger, R. Dorothy First steps in science. Activity book 4 - Kingston P.O. Box 489. Kgn. 10 Carlong 1997 - 83p. ill. 25 cm ISBN: ISBN 976-8010-57-6 (sd) Subjects--Topical Terms: Science - Study and teaching (Elementary)Science Dewey Class. No.: Pam 500 / Ja Pot