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Create 3D glasses and use them to explore color, light and optics. Fool your brain into 'seeing' three dimensions on a flat surface!

In this activity, learners investigate color vision as well as plan and conduct their own experiments.

In this activity (12th on the page), learners investigate their ability to discriminate (see) different colors.

In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

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.

In this activity, learners discover that it's difficult to distinguish between two different shades of gray when they aren't separated by a boundary.

In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

In this activity, learners make a Benham Top to explore visual illusions and optics.

In this activity (17th on the page), learners investigate why you cannot see colors in dim light.

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.

In this optics activity, learners build a spy tool to secretly view things over walls or around corners.