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Light Bulb Challenge
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In this activity, learners explore the difference between compact fluorescent light (CFL) bulbs and traditional incandescent bulbs.
Spectroscope
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In this activity, learners construct their own spectroscope as they explore and observe spectra from familiar light sources.
Exploring Shadows
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This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can chan
Periscope
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In this activity, learners construct a device that allows them to look over ledges or around corners.
How Greenhouse Gases Absorb Heat
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Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.