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In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.

In this activity about light and refraction, learners discover how a lens creates an image that hangs in midair.

In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.