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In this activity, learners use an old CD to construct a spectroscope, a device that separates light into its component colors.

In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.

In this activity (1st on the page), learners find their blind spot--the area on the retina without receptors that respond to light.

By making models of light waves with paper, learners can understand why different colors appear in bubbles.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.