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

In this optics activity, learners investigate afterimages.

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 artistic activity, learners blow up a smaller picture into a larger one, by using a grid.

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