Oceans Flashcards
Pacific ocean
The size of the ocean is 63.8 million mi²
Atlantic ocean
The size of the ocean is 41.1 million mi²
Indian Ocean
The size of the ocean is 27.24 million mi²
Arcitc Ocean
The size is 5.427 million mi²
Southern Ocean
The size of the ocean is 7.849 million mi²
Salinity
a measure of the amount of dissloves salts in a given amount of liquid
surface zone
the surface zone is the warm, top layer of ocean water
Thermocline
the thermocline is the second layer of ocean water
Deep zone
the deep zone is the bottom layer that extends from the base of rhe thermocline ti the bottom of the ocean
water cycle
the continous movement of water from the ocean to the atmosphere to the land and back to the ocean
Evaporation
The physical change from a liquid to a gas is called evaporation
Condensation
The change from a gas to a liquid
Precipitation
is solid or liquid water that falls to earth
continental shelf
the gently sloping section of the continental margin located between the contimental slope
continental slope
the steeply inclines section of the continental margin lacted between the contental eise and the continental shelf
continental rise
the gently sloping section of the continental margin located between the continental slope and the abyssal plain
abyssal plain
the large,flat almost level area of the deep-ocean basin
mid-ocean ridge
a long,undersea mountain chain that forms along the floor of the major oceans.
rift valley
a long, narrow valley that forms as tectonic plates seperate
Seamount
underwater mountains that rise hundreds or thousands of feet from the seafloor
ocean trench
a long, narrow, deep depression in the ocean floor, typically one running parallel to a plate boundary and marking a subduction zone.
Plankton
the small and microscopic organisms drifting or floating in the sea or fresh water, consisting chiefly of diatoms, protozoans, small crustaceans, and the eggs and larval stages of larger animals. Many animals are adapted to feed on plankton, especially by filtering the water.
Nekton
living organisms that are able to swim and move independently of currents.
Benthos
the organisms that live at the bottom of the sea or ocean
desalination
a processof removing salt from ocean water
