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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.

This activity generates learner excitement about light through the creation of a room-sized rainbow.

In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp desk lamp with an incandescent bulb and a stack of glass plates.

In this activity, learners explore the relative efficiency of different bulbs, specifically incandescent vs. fluorescent.