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In this activity, learners experiment with the Stroop Effect by challenging themselves and others to try and read a list of colors as quickly and accurately as possible, with a twist.

In this activity about depth perception, learners create an optical illusion in a shoe box.

In this activity, learners construct three optical illusion toys to examine how our brains play tricks on what we see.

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

In this activity (2nd activity on the page), learners explore the sensitivity of their sense of touch.