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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 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