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

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

In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.