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    University of Washington
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    In this activity (11th activity on the page), learners use pennies to test their hearing acuity. Learners collect pennies, drop them one at a time on a hard surface and listen to the sounds they...

    free Ages 6 - 18 10 to 30 minutes
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    University of Washington
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    In this activity related to the famous "Stroop Effect," learners explore how words influence what we see and how the brain handles "mixed messages." Learners read colored words...

    free Ages 8 - 18 10 to 30 minutes
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    University of Washington
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    In this game (4th activity on the page) about hearing, learners test their ability to identify various sounds without looking. Suggestions for the sounds include shaking coins, tearing paper, and...

    free Ages 4 - 14 5 to 10 minutes
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    University of Washington
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    In this quick activity/demonstration (5th on the page), learners explore depth perception. Learners look at an object in the distance, close one eye, hold up their finger in line with the object,...

    free Ages 6 - 18 Under 5 minutes
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    University of Washington
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    Are fingers the only place on the body where we use our sense of touch? In this activity (6th activity on the page), learners test the touch sensitivity of different parts of the body. One learner...

    free Ages 4 - 18 5 to 10 minutes
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    University of Washington
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    In this demonstration (18th on the page), learners conduct a simple test to explore how the cornea refracts light, which is further bent by the eye lens through a process known as accommodation....

    free Ages 8 - 18 Under 5 minutes
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    University of Washington
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    In this game-like activity (5th activity on the page), learners explore their auditory acuity as well as the importance of having two ears. Learners sit in a circle with a blindfolded learner...

    free Ages 4 - 11 5 to 10 minutes
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    University of Washington
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    In this easy demonstration (3rd on the page), learners explore depth perception by conducting a test with two pencils. Learners hold the ends of two pencils, one in each hand at arm's-length...

    free Ages 4 - 18 Under 5 minutes
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    University of Washington
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    This activity is designed to let learners measure their reaction time or response time to something they see. Learners work in pairs and measure the speed it takes them to catch a ruler dropped by...

    free Ages 8 - 18 10 to 30 minutes
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    University of Washington
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    This is a quick and simple demonstration about reflexes (fourth activity on the page). One learner stands behind a see-through barrier like a window or wire screen. Another learner throws a cotton...

    free Ages 8 - 18 Under 5 minutes

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