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Showing results 1 to 7 of 7
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Dark Adaptation
Source Institutions
In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-344.gif?itok=lW3zoeqZ)
The Blind Spot
Source Institutions
In this activity (1st on the page), learners find their blind spot--the area on the retina without receptors that respond to light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-348.jpg?itok=XGd0268Q)
Color Spy
Source Institutions
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.
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Benham's Disk
Source Institutions
In this activity, learners make a Benham Top to explore visual illusions and optics.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-354.jpg?itok=JAKuUUay)
Depth Perception
Source Institutions
In this easy demonstration (3rd on the page), learners explore depth perception by conducting a test with two pencils.
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Seeing in the Dark
Source Institutions
In this activity (17th on the page), learners investigate why you cannot see colors in dim light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-346.jpg?itok=m7HqL0WC)
Accommodating Accommodation
Source Institutions
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.