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____, the windiest planet, is 30 astronomical units from the Sun.
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1. Mercury
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About 71% of ____ is covered by water.
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2. Venus
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Due to its low density, ____ could theoretically float on water.
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3. Earth
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Ganymede is the largest of the 95 known moons orbiting ____.
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4. Mars
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____ and Neptune are about four times larger than the Earth.
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5. Jupiter
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____ is slightly smaller than Earth.
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6. Saturn
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The moons Ganymede and Titan are larger than the planet ____.
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7. Uranus
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____ has a huge dormant volcano named Olympus Mons.
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8. Neptune
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