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    University of Washington
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    In this activity (12th on the page), learners investigate their ability to discriminate (see) different colors. Learners arrange jars, each filled with water and different amounts of food coloring,...

    1 cent - $1 per group Ages 8 - 18 5 to 10 minutes
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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 (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 activity (3rd on the page), learners conduct a series of tests to find out which of their eyes is more dominant. In other words, do they prefer to use their right or left eye to complete...

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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    University of Washington
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    In this activity (1st on the page), learners find their blind spot--the area on the retina without receptors that respond to light. Learners can draw their own blind spot testers, use the provided...

    1 cent - $1 per group Ages 8 - 18 10 to 30 minutes
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    University of Washington
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    These two activities (4th on the page) demonstrate the importance of two eyes in judging depth. In the first activity, two learners compare the accuracy of dropping objects into a cup using only...

    1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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    University of Washington
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    In this activity (16th on the page), learners play a variation of the "I Spy" game to explore color. Learners work in teams with each team assigned a color. Learners are given 10 minutes...

    1 cent - $1 per group Ages 4 - 11 10 to 30 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 activity (17th on the page), learners investigate why you cannot see colors in dim light. With five pieces of paper of different colors in front of them, learners sit in the dark for about...

    $1 - $5 per group 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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