Solar System

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Across
  1. 2. Number of minutes it takes light to reach Earth from the sun
  2. 4. One of Mars' moons
  3. 5. The most famous dwarf planet
  4. 9. A moon of Uranus
  5. 11. What the inner planets are made from
  6. 12. The Earth's natural satellite
  7. 13. Extinct volcano on Mars
  8. 15. Recentley discovered dwarf planet
  9. 16. The outermost planet
  10. 18. The type of rin on Venus
Down
  1. 1. Contains a big storm 3 times the size of the Earth
  2. 3. What the outer planets are made from
  3. 6. An object like the sun that emits light
  4. 7. Biggest moon in the Solar system
  5. 8. Dwarf planet Pluto's moon
  6. 10. planet with the most spectacular rings
  7. 14. Closest planet to the sun
  8. 17. Planet that spins on its side