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In this activity, learners explore the invisible infrared radiation from an electric heater.

In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.

This quiz lets you estimate your annual radiation exposure.

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

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

In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation.

Use this hands-on activity to demonstrate infrared and thermal radiation.