Green Icebergs

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Across
  1. 2. Ice samples. Ice shelf ....
  2. 4. In the light.
  3. 7. Very big.
  4. 10. What chemicals can do.
  5. 11. Shining light.
  6. 12. Close inspection.
  7. 14. At the bottom.
  8. 16. Ice floating on water.
  9. 17. Can not see through.
Down
  1. 1. Cracks can ..... light.
  2. 3. Not real. Optical ...
  3. 5. Not regular.
  4. 6. Breaking down.
  5. 8. Turned to ice
  6. 9. Disappeared into water.
  7. 11. Heap of stones
  8. 13. Alone
  9. 15. Sea action near land.