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| powered by electricity, a form of energy caused by the motion of electrons and protons |
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| a test to learn about how the forces of nature work |
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| a small, useful machine or device |
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| an unusually talented or smart person |
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| a place where scientists work and do experiments |
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| Happening from time to time |
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| a sound, motion, or other sign that sends a message |
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| something that is silly or has little or no meaning |
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| to work hard at something that is difficult |
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| when someone likes to have things their way and do not like to give in or change |
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| the way you act or behave |
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