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| This machine lets you see how hard you have to spin the wheel to power different devices (such as regular and LED light bulb, coffee grinder, or hair dryer). Hair dryer was the hardest - even dad could not make it spin, because it uses so much electricity. |
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| More in the energy laboratory |
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| Earth day craft - making a planet earth |
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| Playing games - throwing a wheel make of sticks into other sticks. This was really hard! |
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| Of course, climbing trees is a must! |
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| Painting was fun too |
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