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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.

In this activity (4th on the page), learners conduct a series of tests to find out which of their ears is more dominant.

In this activity (11th activity on the page), learners use pennies to test their hearing acuity.