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

In this activity, learners will create an optical illusion top. Learners will explore color mixing, physics and design through this activity.

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

In this activity (3rd on the page), learners conduct a series of tests to find out which of their eyes is more dominant.

In this story time program, young learners listen to the Dr.

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