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Experiments With Light and Sound
Trevor Cook
Library Binding (Powerkids Pr, Jan. 1, 2009)Presents over ten experiments demonstrating the properties of light and sound, and explains how these properties work in action.
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Experiments with Light and Sound
Trevor Cook
Paperback (PowerKids Press, Jan. 1, 2009)Presents over ten experiments demonstrating the properties of light and sound, and explains how these properties work in action.
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