How Much Do YOU Know About The Solar System?

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Across
  1. 1. A fiery ball of hot gas
  2. 2. Mercury's days are very ___
  3. 3. Known as the Red Planet
  4. 7. The biggest planet
  5. 10. Planet closest to the sun
  6. 12. Mercury's nights are very ____
  7. 14. Planet furthest away from the sun
Down
  1. 1. The sun is not a planet it is a ____
  2. 4. Planet that has clearly visible rings encircling it
  3. 5. Earth has ___ moon
  4. 6. Number of Planets in the Solar System
  5. 8. Compared to other planets Earth is very
  6. 9. Force that keeps the planets orbiting the sun
  7. 11. Like Earth Mars has sheets of ice at the top and bottom of the planet named _____. Hint: Earth has North and South _____
  8. 13. How long it takes for the Earth to orbit the sun