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Showing results 21 to 29 of 29
Liquid Crystal Thermometers
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In this activity, learners explore liquid crystal thermometers to observe how heat flows by conduction, convection, radiation, and evaporation.
Oboe? Oh, Boy!
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In this activity, learners create a straw oboe to explore sound and pitch.
Light and Sound
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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.
Dye Like A Natural
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In this activity, learners stain fabrics--on purpose!
Laser Jello
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In this activity, learners use gelatin as a lens to investigate the properties of laser light.
On the Fringe (formerly Bridge Light)
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In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.
X-Ray Spectra
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In this activity, learners use simple materials to simulate the effect of X-rays in a safe way. Learners place a piece of window screen over a box and a cardboard pattern on top of the screen.
Water on the Move: Wind and Waves
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In this simple activity, learners explore ocean waves. To find out if water moves forward toward the shore, learners create waves in a simulated ocean (small aquarium tank of water).
Blue Sky
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In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk.