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Showing results 1 to 6 of 6
Why is the Sky Purple?
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.
Glue Stick Sunset
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In this activity, learners explore why the sky is blue. Learners model the scattering of light by the atmosphere, which creates the blue sky and red sunset, using a flashlight and clear glue sticks.
Light Soda
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In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.
Seeing in the Dark
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In this activity (17th on the page), learners investigate why you cannot see colors in dim light.
Rainbow Film
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In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.
Erupting Fizz
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This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.