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2
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The theory that suggests that the Earth is the center of the universe and that all other body revolves around it
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3
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A scientific explanation about how a cosmic explosion caused the universe to form
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4
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The moon has eight of these
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5
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A scientist that studies astronomy and the things that happens in space
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6
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It contains everything
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7
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The force that pulls things towards the Earth
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8
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This group contains a sun,planets,stars,and other smaller bodies
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9
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A large body of planets,stars.and other space bodies
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1
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The theory that suggests that the Sun is the center of the universe
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