TOBB Puzzle

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Across
  1. 3. Snowfall
  2. 5. Continent
  3. 9. Astrophysics
  4. 10. Observation
  5. 13. Antarctica
  6. 14. Glacier
  7. 18. South
  8. 20. Meteorology
  9. 21. Frozen
  10. 22. Laboratory
Down
  1. 1. Expedition
  2. 2. Iceberg
  3. 4. Oceanography
  4. 6. Research
  5. 7. Climate
  6. 8. cientist
  7. 11. Ice
  8. 12. Sample
  9. 15. Geology
  10. 16. Data
  11. 17. Biology
  12. 19. Polar