Science

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

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What is the second planet in distance from the sun?
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Which of these measurements would be different on Mars than on Earth?
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Which scientific term is defined as the rate at which a wave oscillates in cycles?
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How many times is Jupiter larger than Earth in diameter?
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What is the distance that light travels in a year called?
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Which of these is a factor that is tested in the scientific method?
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Which of these objects would be attracted to a magnet?
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What is the watering of land by artificial means called?
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