Solar system

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Across
  1. 1. densest planet in the solar system
  2. 2. Planet with a surface of iron oxide
  3. 3. The planet that could float on water
  4. 7. Biggest moon in the solar system
  5. 9. Brightest planet in the sky
  6. 10. Egg shaped dwarf planet
  7. 12. belt of objects just beyond Neptune
  8. 13. smallest planet in the solar system
  9. 14. distant comets come from here ____ cloud
  10. 15. The only moon other than Earth's moon which has been visited by a lander
Down
  1. 1. Moon with an ocean under ice
  2. 4. Planet that spins on its side
  3. 5. The biggest object in the asteroid belt
  4. 6. Planet named after the Roman God of the seas
  5. 8. the planet whose mass is greater than all the remaining planets combined
  6. 10. Sponge structured moon of Saturn
  7. 11. Comet with the shortest orbital period