Oceanography Vocab

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