Science

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

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What is the 6th planet from the sun in our solar system?
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What is the term given to heat and light radiated from the sun?
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What are the ends of a bar magnet called?
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Which abbreviation refers to a term that literally means "below red"?
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What does a ruler measure?
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How many forms are in the Wing Chun system?
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What Swedish physicist and astronomer influenced the foundation for the light spectrum analysis?
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What is the repeated sound when sound waves bounce off other objects called?
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