What unit of measurement do we use to measure hydrostatic pressure?
Kilopascal
Rhythmic back-and-forth motions of water that transfer energy through the water.
Waves
Most regular and predictable movements of water in the oceans are called ___.
Tides
A surface current that forms when large quantities of water surge ashore and then flow back offshore but are trapped by sandbars.
Rip Current
Lowest point of a wave.
Trough
The outer edge of a glacier that floats on the ocean's surface.
Ice Shelf
Average salinity of the Red Sea.
4%
What two things affect the denisty of seawater?
Temperature and salinity
Water pressure
The average surface temperature of water in tropical regions is ___.
86oF
Underwater plain that that forms the deep ocean floor.
Abyssal Plain
Water samples from the ocean depths can be obtained with ____; which are plastic tubes on a weighted line that is lowered into the ocean.
Niskin Bottles
What percentage tsunamis are caused by strong earthquakes?
90%
When both high tides rise to the same level and both low tides fall to the same level, a location is experiencing a _____ tide.
Semi-diurnal
The Challenger Deep is located in the Mariana Trench; what is the greatest depth ever reported?
36,200 ft
Where are diurnal tides typically found?
Gulf of Mexico
The first vessel to explore the Challenger Deep.
Trieste
When the sea floor drops away from the continent abruptly.
Continental Slope
Research submersible consisting of a thick steel spherical crew compartment suspended from a float.
Bathscaphe
These tides occur along the western coast of the United States.
Mixed Semidiurnal
Who pioneered the concept of drift bottles?
Matthew Maury
Area of the sea that exceeds 6000m in depth
Hadal Zone
What does SCUBA stand for?
Self contained underwater breathing apparatus
Circular coral reef islands that grow around seamounts.
Atoll
This surface current is partly responsible for the mild climate of Great Britain and other regions of northwestern Europe.
Gulf Stream