Science

What tool uses a magnetic needle that points north?

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Earthmen first sent a spacecraft to which planet?
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Which of these is defined as "part of the electromagnetic spectrum that contains visible light"?
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What is the scientific word for push or pull?
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Optics is the study of what?
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What mammal group are humans in?
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What is the largest planet in the solar system?
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Which scientist died the same year Sir Isaac Newton was born?
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Which planet was discovered in 1781 with the help of Bode's Law?
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