Planet Crossword

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Across
  1. 2. Planet with the shortest day
  2. 4. Planet with the most moons
  3. 6. This backward rotation of Venus is called
  4. 8. Was removed from the planet list in 2001
  5. 10. This planet has a sulfuric acid atmosphere
  6. 13. Earth and this planet are the only two known to have polar ice caps
  7. 14. This is the only planet with one moon
  8. 15. Venus and this planet have no moons
  9. 16. Earth is the only planet known to have this
Down
  1. 1. Planet with a huge crack on the surface of
  2. 3. This planet rotates nearly 90 degrees to it's orbit
  3. 5. The hottest planet in the solar system
  4. 7. The last four, gas giant planets are called ___ Planets
  5. 9. Is a gas that give Uranus and Neptune a blue/green atmosphere
  6. 11. Belt of rock and dust between Mars and Jupiter
  7. 12. This planet is farthest from the sun