Waters of the Seas
Most of earth’s water.
What are oceans?
Large streams of ocean water that flow at or below the surface.
What are ocean currents?
The deep depressions in the earth’s surface that contain the oceans.
What are ocean basins?
Most important tool of the oceanographer.
What is a research vessel?
Rythmic back and forth motions of water that transfer energy thru the water.
What are waves?
The study of the oceans.
What is oceanography?
Surface currents that move in a circular path.
What is a gyre?
The ocean floor.
What is the abyssal plain?
Small research submarine.
What is a submersible?
The metric unit of measurement for hydrostatic pressure.
What is kilopascal?
78% of the salt in the oceans.
What is sodium chloride?
A type of density current that occurs when mud or silt mixes with seawater.
What is a turbidity current?
Underwater volcanic mountains that rise up to more than 980m above the sea floor.
What are seamounts?
A device with an open tube that is dropped to the sea floor, allowing its weight to puncture the sediment.
What is a gravity corer?
The pressure from water.
What is hydrostatic pressure?
Measure of the quantity of dissolved salt in seawater.
What is salinity?
The depression in the water between crests.
What are troughs?
Manned research vessel that first explored the Challenger Deep.
What is the Trieste?
British research vessel that took a four year journey around the world in 1872.
What is the HMS Challenger?
Two main factors that determine the density of seawater.
What are salinity and temperature?
Region where cold, deep water meets the sun warmed, near surface water.
What is the thermocline?
One high tide and one low tide a day.
What are diurnal tides?
Deepest known point in the sea.
What is the Challenger Deep?
SCUBA is the abbreviation for this.
What is “Self Contained Underwater Breathing Apparatus”?
Primary cause of tides.
What is the moon?