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Showing results 21 to 29 of 29
Build Your Own Solar Oven
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Learners follow directions to construct a solar oven that really cooks! The solar oven uses aluminum foil to reflect sunlight into a cooking chamber, which is painted black.
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.
Why is the Sky Blue?
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In this activity, learners use a flashlight, a glass of water, and some milk to examine why the sky is blue and sunsets are red.
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.
See the Light
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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.
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.
What is Light?
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In this four-part activity, learners will discover the exciting world of light--the most important form of energy in our world--and be able to identify and describe different types of light.
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
Photosynthetic Pictures Are Worth More Than a Thousand Words
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This activity provides an opportunity for learners to observe and examine how carbon dioxide, water, and light produce glucose/starch through a process called photosynthesis.