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In this activity, learners construct wands that play different notes depending on information from light sensors programmed via a PICO Cricket.

In this activity, learners explore phosphorescence and how certain materials can absorb and store energy from a light source.

Learners experiment with a commercial photo-sensitive paper (Sunprint® or NaturePrint® paper). They place opaque and clear objects on the paper and expose it to bright light, observing the results.

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

Make a kite out of a garbage bag, shower curtain, painting tarp--anything light, thin, flexible and plastic!

Use this model to demonstrate the goal of NASA's Kepler Mission: to find extrasolar planets through the transit method.

In this technology activity, learners light up the room with electrifying play dough creations. Learners use conductive and insulating homemade play dough to build simple circuits.

In this activity, learners will create an optical illusion top. Learners will explore color mixing, physics and design through this activity.

Learners make a circuit board that has questions and answers. When the correct answer is chosen for a question, a circuit is completed and a light illuminates.

Learners experiment with a commercially available liquid-crystal coaster. They warm the material with their hands for varying lengths of time and observe the changing colors that result.

In this activity, learners construct a device that allows them to look over ledges or around corners.

In this activity, learners explore conservation of energy by experimenting with a solar cell light device.

This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.

Make your own "Dance Dance Revolution" dance pad! In this design challenge activity, learners work in teams to build a dance pad that lets you use your feet to sound a buzzer or flash a light.

In this activity, learners construct a device that allows them to view 2-D images in 3-D.