Simple science fun;: Experiences with light, sound, air, and water (A Humpty Dumpty book)

By Bob Ridiman.

Simple science fun;: Experiences with light, sound, air, and water (A Humpty Dumpty book)

Description

Simple experiments reveal the principles of light, sound, air, and water. - from Amzon

ISBN(s)

081930607X, 9780819306074

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