Earth

12345678910111213141516
Across
  1. 2. 1300 miles thick
  2. 6. starts on March 20
  3. 10. starts on december 21
  4. 13. less dense crustal masses
  5. 14. consists of the crust
  6. 15. orbital motion
  7. 16. path of the planet
Down
  1. 1. oceanic and continental
  2. 3. is in the crust
  3. 4. Fe
  4. 5. 1500 miles thick
  5. 7. imaginary line in the earth
  6. 8. molten rock
  7. 9. starts on September 23
  8. 11. 1800 miles thick
  9. 12. 23 hours 56 minutes and 4 secounds