Science

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

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Clouds are made up of what?
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Which animal's chirps can be used to tell the temperature?
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What sort of electricity do you get when you rub two balloons and they stick together?
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What is the repeated sound when sound waves bounce off other objects called?
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What describes an extremely dry climate?
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What does MAST stand for in medical terms?
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What is the ripened ovary of a flower better known as?
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In which constellation does the vernal equinox appear?
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