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16 Cards in this Set

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Hydrothermal vents

an area where ocean water sinks through cracks in the ocean floor, is heated by the underlying magma, and rises again through the cracks


an upward flow of cold water from the ocean depths

Nertic zone

the part of the ocean that extends from the low-tide line out to the edge of the continental shelf

Open ocean zone

the area of the ocean beyond the Continental shelf


tiny algae and animals that float in water and are carried by waves and the current


free-swimming animals that can move throughout the water column


organisms that live on the bottom of the ocean or other body of water

Inertial zone

the are that stretches from the highest high-tide line on land out to the point on the continental shelf exposed by the lowest tide


a system that uses sound waves to calculate the distance to an object


the farming of saltwater and fresh water orgainsms


a coastal inlet or bay where fresh water from rivers mixes with salty ocean water

Surface zone

extends as far as sunlight reaches below the surface; it is only part of the open ocean that receives enough sunlight fr the growth of algae

Deep ocean zone

begins whenthe sunlight no longer reaches the water (at the end of the surface zone); itis dark and cold.

surface currents

is a large astream of moving water at the surface that flows through the ocean; are mainlydriven by winds


thepart of the earth's crust, waters, and atmosphere that supports life