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In this optics activity, learners conduct an experiment to find out why two eyes are better than one!

In this optics activity, learners conduct an experiment to explore peripheral vision. Learners collect data about their ability to see shapes, colors, or letters using their peripheral vision.

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 create an optical illusion by spinning two attached cups. A round ball seems to magically appear when the cups spin.

In this easy demonstration (3rd on the page), learners explore depth perception by conducting a test with two pencils.

In this activity, learners surprise their eyes with an optical illusion involving arrows made out of pipe cleaners.

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

In this activity related to light and perception, learners use a pinhole in an index card as a magnifying glass to help their eye focus on a nearby object.

In this activity, learners will explore how their own eyes work by experimenting with their photoreceptors.

In this optics activity, learners investigate afterimages.