Science
What scientist discovered that sunspots occur in an eleven-year cycle?
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The process by which plants make food is called what?
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What famous scientist introduced the concept of "space-time"?
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What would you use to measure the mass difference between two like objects?
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What are the big holes and dents found on the Moon called?
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What form of energy are we using when we use an alarm clock or a dishwasher?
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What is the generic term for very small loose particles of hard, broken rock or minerals?
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