The largest ocean
Half the size of the Pacific Ocean, also the second largest ocean
The third largest ocean
The smallest ocean
The measure of the amount of dissolved solids in a given amount of liquid
The warm, top layer of ocean water. It can extend to 300 m below sea level. Sunlight heats the top 100 m of the surface zone. Surface currents mix the heated water with cooler water below
The second layer of ocean water. It can extend from 300 m below sea level to about 700 m below sea level. In this part of the ocean, temperature drops with increased depth faster than it does in the other two zones.
The bottom layer that extends from the base of the thermocline to the bottom of the ocean. The temperature in this zone can range from 1ºC to 3ºC.
An acronym that stands for Sound Navigation And Ranging. Based on the echolocation of bats
A type of satellite that allows scientists to measure speed and direction of an ocean current. Launched in 1978.
A satellite used to measure slight changes in height of ocean's surface.
A map of the ocean floor that shows the ocean depth by using sonar signals.
The gently sloping section of the continental Margin located between the shoreline and the continental slope.
The steeply inclined section of the continental Margin located between the continental rise and the continental shelf.
The gently sloping section of the continental margin located between the continental slope and the abyssal plain.
A large, flat, almost level area of the deep-ocean basin.
Made up of continental crust
Made up of oceanic crust
A long, undersea mountain chain that forms along the floor of the major oceans
A long, narrow valley that forms as tectonic plates separate
A submerged mountain on the ocean floor that is at least 1,000 m high and that has a volcanic origin
A steep, long depression in the deep-sea floor that runs parallel to a chain of volcanic islands or a continental margin
The goal of this project is to explore the deepest part of the ocean