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Our Sense of Sight: Color Vision
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In this activity, learners investigate color vision as well as plan and conduct their own experiments.

Two Washers
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In this activity, learners create a mind and math puzzle that requires a three-dimensional solution.

How Quick Are Your Responses?
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In this activity (on page 134 of the PDF), learners explore reaction time.

Our Sense of Sight: How We Perceive Movement, Depth and Illusions
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In this activity, learners investigate visual perception as well as plan and conduct their own experiments.