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    University of Washington
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    This is a quick and simple demonstration about reflexes (second activity on the page). During a discussion about the brain and nervous system, the educator slams a book on a table to create a loud...

    free Ages 4 - 18 Under 5 minutes
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    University of Washington
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    In this activity (13th on the page), learners complete a simple illusion trick to see through their own hand. Learners roll up a piece of notebook paper into a tube, arrange their hands in a...

    1 cent - $1 per group Ages 8 - 18 Under 5 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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    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 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 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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    University of Washington
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    In this quick and simple activity about reflexes (at the top of the webpage), learners conduct a simple test to explore pupillary response. Learners work in pairs and compare the size of their...

    free Ages 8 - 18 Under 5 minutes

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