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2
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The planet on which we live.
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5
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Any one of the objects in space that are made of burning gas and that look like points of light in the night sky.
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6
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The large and blue planet between Saturn and Uranus.
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8
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The planet that is closest to the sun.
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10
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An object in outer space that develops a long, bright tail when it passes near the sun.
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11
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The star that the Earth moves around and that gives the Earth heat and light.
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12
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A planet next to earth that used to have water a long time ago.
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13
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It is too small to be a planet and is the farthest from the sun.
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