oceanography vocabulary puzzle iris

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Across
  1. 1. surface.
  2. 6. Zone: The middle layer of the ocean, receiving very little light.
  3. 8. Zone: The uppermost layer of the ocean, where sunlight penetrates.
  4. 10. shelf: The extended perimeter of each continent
  5. 13. Zone: The deep ocean layer, where no sunlight reaches.
  6. 15. An underwater mountain rising from the ocean floor that does not reach
  7. 17. Zone: The layer of the ocean at depths between 4,000 and 6,000
  8. 18. The concentration of salts in water.
  9. 19. Aquatic animals that can swim and move independently of water currents.
  10. 21. disturbances.
  11. 24. A layer in a body of water where the temperature changes rapidly with
Down
  1. 2. Zone: The deepest layer of the ocean, found in ocean trenches.
  2. 3. Small and microscopic organisms drifting or floating in the sea.
  3. 4. A deep, narrow depression in the ocean floor, often caused by tectonic
  4. 5. The rising of cold, nutrient-rich water from deep in the ocean to the
  5. 7. slope: The steep slope where the continental shelf drops to the deep ocean floor
  6. 9. Reef: A diverse underwater ecosystem held together by calcium carbonate
  7. 11. plain: a flat, almost level area of the deep ocean basin
  8. 12. A series of ocean waves with extremely long wavelengths caused by
  9. 14. Vent: An opening in the sea floor out of which heated mineral-rich
  10. 16. ocean ridge: an underwater mountain range formed by plate tectonics
  11. 20. flows.
  12. 22. secreted by corals.
  13. 23. Organisms that live on, in, or near the seabed.