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