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Solar Energy
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In this activity (page 11 of PDF), learners compare the air pressure within a dark and a light bottle both heated by the sun, and discover that solar energy can be collected and stored in many ways
Photosynthesis and Transpiration
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In this activity on page 7 of the PDF (Plants—The Green Machines), learners examine the effects that light and air have on green plants.
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.