Oceans
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Pacific Ocean
Largest ocean.
Atlantic Ocean
Second largest ocean.
Indian Ocean
Third largest ocean.
Arctic Ocean
Smallest and shallowest ocean.
Southern Ocean
Southernmost ocean.
Salinity
A measure of the amount of dissolved salts in a given amount of liquid.
Surface Zone
First 200 meters of the ocean.
Thin layer of a body of water that the temp varies more rapidly than the rest of the water.
Thermocline
Part of an ocean that get little to no sunlight.
Deep zone
The continuous movement of water from the ocean to the atmosphere to the land and back to the ocean.
Water cycle
Process by which liquid turns to a gas.
Evaporation
Process by which gas turns back to a liquid.
Condensation
Liquid falling from the sky in any form.
Precipitation
The gently sloping section of the continental margin located between the shoreline and the continental slope.
Continental Shelf
The steeply inclined section of the continental margin located between the continental rise and the continental shelf.
Continental Slope
Land divider separating watersheds.
Continental Divide.
A large, flat, almost level area of the deep-ocean basin.
Abyssal Plain
Mid-ocean ridge
A long, undersea mountain chain that forms along the floor of the major oceans.
A long, narrow valley that forms as tectonic plates separate.
Rift Valley
A submerged mountain on the ocean floor that is at least 1,000 m high and that has a volcanic origin.
Seamount
A steep and long depression in the deep-sea floor that runs parallel to a chain of volcanic islands or a continental margin.
Ocean Trench
The mass of mostly microscopic organisms that float or drift freely in freshwater and marine environments.
Plankton
All organisms that swim actively in open water, independent of currents.
Nekton
The organisms that live at the bottom of the sea or ocean.
Benthos