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In this activity, learners conduct a simple test to find their blind spot.

In this quick optics activity, learners use a dim point of light (a disassembled Mini MagLite and dowel set-up) to cast a shadow of the blood supply in their retina onto the retina itself.

Create an illusion where it appears that your hand has a hole in it. You'll see the results from when one eye gets conflicting information.

This is a quick activity/demonstration that introduces learners to the concept of index of refraction. Learners place stirring rods in a jar of water and notice they can see them clearly.

In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

If you had a long tube with a 5 millimeter wide slit, would you see the entire Golden Gate Bridge?

This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?

In this quick and simple activity about reflexes (at the top of the webpage), learners conduct a simple test to explore pupillary response.