Science

What is the name for a tool that makes work easier to do?

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What are many cells that form together to provide a certain function called?
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On which college campus would you find the Hatter Planetarium?
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What force slows down a rolling ball?
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Which is not one of the four schools of family therapy?
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What is the liquid component of blood known as?
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Which of these is a factor that is tested in the scientific method?
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What are the Southern Lights called?
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Where would you find the zone of polarizing activity?
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