$8.50
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This solar cell comes complete with attached wires and encased in a clear p... more
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$11.95
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With this kit you can make a battery from a potato, lemon, water, coins, or... more
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$11.95
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See for yourself how a generator works with this hands-on alternative energ... more
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$19.95 $18.95
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Build six different models from one box with this hands-on solar power kit!... more
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$23.95
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Explore the power of the sun as you learn about alternative energy, photovo... more
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$24.95
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Learn about solar energy by building and operating this fun "Photon" solar ... more
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$27.95
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This kit lets you get hands-on with the amazing power of the sun! You can ... more
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$29.95
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Find out about the power of the wind by building your own wind turbine! Le... more
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