Observe how energy is transferred by sound - 4th Grade Science

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Question

What is sound?

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Answer

When asked, "what is sound," it seems like it is a straightforward definition to explain, but there are so many layers to it that it is a complicated answer. Sound is the movement of energy by vibrations through substances in the form of waves. When a musician bangs a drum, it creates a vibration; this vibration creates sound waves that travel to our ears to be received and processed. Though the waves are invisible, they are still energy transferring information.

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