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10 Cards in this Set
- Front
- Back
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planet
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a large body of matter that revolves around the sun
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orbit
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the path an object takes around another object
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probes
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unmanned satellites that study planets
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invisible
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not seen
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entire
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whole
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difference
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the way things are not alike
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zones
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an area
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subtropical
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a climate with hot and humid summers and mild winters
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average
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the usual
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hazard
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a source of danger
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