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In this simple activity, learners investigate refraction by placing a picture of an arrow behind a glass of water.

Like water drops in falling rain, a CD separates white light into all the colors that make it up.

In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.

In this optics activity, learners explore how light bends and affects what we see.

In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.

In this optics activity, learners explore how they can make gelatin stop light, but not stop them from seeing fruit suspended within.

In this sunny day activity, learners compare how a cup of water and a cup of tonic water reflect or refract light in the sun.

In this activity, learners use gelatin as a lens to investigate the properties of laser light.

In this activity, learners use a laser pointer, empty soda bottle, rubber plug and water to demonstrate total internal reflection.