Hydrosphere

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Across
  1. 3. — Large body of salt water
  2. 7. — Island group north of Sicily
  3. 8. — The sea itself
  4. 11. — Frozen water
  5. 13. — Hard protective covering of marine animals
  6. 14. — Soft-bodied sea animal
  7. 16. — Flowing natural watercourse
  8. 17. — Microscopic aquatic organisms
  9. 19. — Coastal inlet
Down
  1. 1. — Movement on the surface of water
  2. 2. - A marine mammal known for its size
  3. 3. — Soft marine animal
  4. 4. — Saltwater covering most of the Earth
  5. 5. — Small crustacean living in water
  6. 6. — A still body of freshwater
  7. 9. — Intelligent marine mammal
  8. 10. — Aquatic plant-like organisms
  9. 12. — Reef-building marine organism
  10. 13. — Predatory fish
  11. 15. — Amphibian living near water
  12. 18. — Large migratory fish common in the Mediterranean