Lorbeer, George C. Science activities for middle school students / - 2nd ed. - Boston : McGraw-Hill, c2000. - xiv, 428 p. : ill. ; 28 cm. Includes index. ISBN: 0072299169 (acidfree paper) Subjects--Topical Terms: Science Dewey Class. No.: 507 MCG 2000 A035 Or.