Are Mountains Growing Taller: Questions and Answers About the Changing Earth (Scholastic Question and Answer Series)
by Melvin Berger,Gilda Berger,Robin Carter
ISBN 13: 9780439266734
Format: Paperback (48 pages) Publisher: Scholastic Reference Published: Mar 2003
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Scholastic Q & A: How Do Flies Walk Upside Down? (Scholastic Question & Answer)
by Melvin Berger,Gilda Berger,Jim Effler
ISBN 13: 9780439085724
Format: Paperback (48 pages) Publisher: Scholastic Reference Published: Aug 1999