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Sound: Loud, Soft, High, and Low
Natalie M Rosinsky, Matthew John
Library Binding (Picture Window Books, Jan. 1, 2008)Sound is created through vibrations that vary in pitch and volume. This creates sound-waves that you can hear. Includes experiments.
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El Sonido/ Sound: Fuerte, Suave, Alto y Bajo/ Loud, Soft, High, and Low
Natalie M. Rosinsky, Matthew John
CD-ROM (Picture Window Books, April 30, 2008)None
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