The outer planets

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Across
  1. 5. ____ are made up of rock and ice
  2. 9. The outer planets are _______________
  3. 10. Uranus also has ___________
  4. 11. The biggest outer planet
  5. 12. Are after the asteroid belt
  6. 14. _____ is the biggest moon in solar system
Down
  1. 1. is the coldest planet
  2. 2. are not as dense as inner planets
  3. 3. _______ are Uranus and Neptune
  4. 4. Saturn can't ______ Because it's core would fall out
  5. 6. You can't ____ on these planets
  6. 7. Known for it's rings
  7. 8. _______ has the most moons
  8. 13. Has diamond rain