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

In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).

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

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.