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Two Lenses in One
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In this activity about light, learners explore how water can refract light and change the way they see things.
Mix and Match
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In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.
Oil Spot Photometer
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In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.
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.
Film Canister Farming
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In this hands-on botany activity, learners sprout vegetables in film canisters.
The Senses of "Unknown Creatures"
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In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.
Earth's Energy Cycle: Albedo
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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.