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In this activity, learners explore their eye pupils and how they change.

In this activity, learners observe what happens when they give a light source like a neon glow lamp a "Bronx Cheer." The lights appear to wiggle back and forth and flicker when learners blow air throu

In this activity, learners overlap the three primary colors to see how all other colors are made.

This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match.