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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.
How does the Atmosphere keep the Earth Warmer?
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In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp desk lamp with an incandescent bulb and a stack of glass plates.
Can Energy be Created or Destroyed?
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In this activity, learners explore conservation of energy by experimenting with a solar cell light device.
What does Color have to do with Cooling?
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In this demonstration/experiment, learners discover that different colors and materials (metals, fabrics, paints) radiate different amounts of energy and therefore, cool at different rates.