EARTH STUFF

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Across
  1. 4. Star at the center of our solar system
  2. 5. Biblical crop damage
  3. 7. Mythical creature that is half human, half fish
  4. 11. Large body of freshwater surrounded by land
  5. 12. Large marine mammal
  6. 13. Two wheeled motorized vehicle
  7. 14. Natural light displays in the polar sky
  8. 15. Large sea wave caused by underwater disturbances
  9. 18. Sport played on a course with clubs and a ball
  10. 19. Liquid fossil fuel
  11. 22. Ground shakes
Down
  1. 1. Ancient triangular structure in Egypt
  2. 2. Underwater vessel
  3. 3. Collection of written or printed pages bound together
  4. 6. Cold white flakes
  5. 8. Activity for fitness
  6. 9. Bathing pot
  7. 10. Spews lava
  8. 13. The red planet
  9. 16. Periodical publication with articles and images
  10. 17. Overflow of water onto land
  11. 20. Marine organism that forms reefs
  12. 21. Rapid combustion producing heat and light