Question

.When sound enters the ear, the eardrum ___________

Answer 1

Answer:

The eardrum moves back and forth when sounds hit it.

Explanation:

Different pitches, or how high or low a sound is, make the eardrum move more or less. The eardrum makes the small bones move. This movement sends a signal to the inner ear.

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Answer 2

Explanation:

moves back and fourth when sounds hit it.

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