Amazing Sound - Hewitt, Sally
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This interesting new book introduces children to the concepts of vibration, echo, and sound waves as well as how sound travels through the air, water, ground, and even walls. Amazing photographs show how bats use sound waves to find insects to eat, and how musical instruments make sound through vibrating air, strings, and skins.

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Produktbeschreibung
This interesting new book introduces children to the concepts of vibration, echo, and sound waves as well as how sound travels through the air, water, ground, and even walls. Amazing photographs show how bats use sound waves to find insects to eat, and how musical instruments make sound through vibrating air, strings, and skins.