Ocean Vocabulary

7. a system that uses underwater sound waves to measure distance and locate objects
8. a property of matter representing the mass per unit volume
10. a wet, swampy area that is often flooded with water.
11. a built-up limestone deposit formed by small ant-sized organisms called corals
12. A disturbance in wind patterns and ocean currents in the Pacific Ocean
13. a shoreline area where freshwater from a river mixes with salt water from an ocean
14. an opening in the sea floor from which heated water rises and mixes with the ocean water above
16. the catching of a fish faster than they can reproduce
18. a mass of moving ocean water
19. the vertical movement of deep water up to the surface
20. Microscopic floating organisms that live in water and, like plants, convert sunlight and carbon dioxide into food

1. A narrow stream of water that breaks through sandbars and drains rapidly back into deeper water.
2. The natural environment where a creature gets all it needs
3. The overall direction and movement of water as waves strike the shore at an angle
4. The narrow ocean margin between the high-tide mark and the low-tide mark
5. The flat or gently sloping land that lies submerged around the edges of a continent
6. a large community of kelp, a type of seaweed that can attach to the ocean floor
9. the movement of water from the surface to greater depths
15. the portion of animals that are caught in a net and then thrown away as unwanted
17. The measure of the amount of dissolved salt contained in water