Solar System

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Across
  1. 5. Olympus Mons is Mar’s largest ____.
  2. 6. ____ spins backward
  3. 10. ____ is the lightest planet
  4. 11. Uranus rotates on its ____
  5. 12. Once the ninth planet
  6. 13. Smallest planet but not the hottest
  7. 14. Earth is the only known planet with liquid ____ on its surface.
Down
  1. 1. About 15 million degrees Celsius is the sun’s ___
  2. 2. It takes ____ about 8 minutes and 20 seconds to reach Earth.
  3. 3. Jupiter has the largest ___ in the solar system.
  4. 4. Larges Planet and has a Great Red Spot (storm) is located on ____.
  5. 7. Venus is often called ____’s “twin”
  6. 8. Accounts for 99.86% of the solar system’s mass.
  7. 9. ____ the coldest planet.