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____ has extreme temperatures (800°F day vs -330°F night).
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1. Mercury
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Ganymede is the largest of the 101 known moons orbiting ____.
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2. Venus
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____ has a spectacular ring system containing some of its moons.
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3. Earth
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____ has only one large natural satellite.
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4. Mars
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____ has a huge dormant volcano named Olympus Mons.
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5. Jupiter
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____ was the first planet discovered using a telescope (1781).
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6. Saturn
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____ radiates more heat than it receives from the Sun.
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7. Uranus
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____ is slightly smaller than Earth.
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8. Neptune
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