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    University of Washington
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    In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions. Learners sort similar bottle caps in a well-lit...

    free Ages 8 - 18 10 to 30 minutes
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    University of Washington
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    In this activity (9th activity on the page), learners work in pairs to see how their perception of touch differs from reality. One learner uses a pen/marker to mark a point on the skin of another...

    free Ages 8 - 18 10 to 30 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 activity (7th activity on the page), learners use their sense of touch to identify mystery objects hidden in socks. Learners guess what is inside by touching and feeling the object on the...

    free Ages 4 - 18 5 to 10 minutes
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    University of Washington
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    In this activity (14th activity on the page) about the sense of touch, learners examine if it is easier or harder to identify an object if they move their hands over it. Working in pairs, one...

    free Ages 4 - 18 5 to 10 minutes
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    University of Washington
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    In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing. Two identical...

    free Ages 8 - 18 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 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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