Science

What does a ruler measure?

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Who was the space walking astronaut on Gemini 10?
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The path traveled by a body in space is known as what?
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What is the stalk of a stamen called?
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What would you use to measure the mass difference between two like objects?
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Which one of the original 7 astronauts sported the middle name of Herschel?
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What tissues connect the muscles to the bones?
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What word best describes dinosaurs?
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During the seventeen hundreds, what creature was thought to excrete blood through its skin?
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