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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 activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

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

Challenge popular misconceptions, learners explore how a mirror actually reflects an image in this activity.

In this activity, learners discover that it is difficult to trace a curve by using its reflection in a mirror. Use this activity to discuss how the brain works.