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

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.

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

In this activity about vision and optical illusions, learners conduct a simple test to demonstrate how our eyes create "afterimages." Learners stare at a black cardboard bat for at least 30 seconds an

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

In this activity, learners explore how mirrors reflect light and change the way we see things.