Ocean
What is oceanography?
The study of the biology, chemistry, geology, and physics of the ocean.
What is the top of a wave called?
The crest
What is an atoll?
What is salinity?
The amount of dissolved salt in a body of water
What are the two factors that determine density of ocean water?
What is salinity and temperature?
What is the bottom of a wave called?
What are seamounts?
underwater volcanic mountains
What is the average salinity of seawater?
35ppm
What term describes the mixing of cold deep water with warm shallow water?
Upwelling
What is an undertow?
When a wave recedes back into the ocean, pulling the sand back with it
What is the deepest part of the ocean?
The Challenger Deep in the Mariana Trench
What is the unit that hydrostatic pressure is measured in?
kPa
What percentage of salt dissolved in sea water is table salt (NaCl)?
About 78%
Tsunamis are typically caused by...?
Earthquakes
What part of the continental margin is the area where the sea floor drops away from the continent abruptly?
The continental slope
Name a process that increases salinity in seawater
a process that increases salinity include evaporation and formation of sea ice.
What are the 4 major features of Continental margins?
Continental shelf, continental slope, and continental rise, and abyssal plain
Describe each of the following
A diurnal tide
A semi-diurnal tide
A mixed semi-diurnal tide
Diurnal: One high tide and One low tide daily
Semi-diurnal: Two equal high tides and low tides daily
Mixed Semi-diurnal: Two high tides (one is higher) and two low tides (one is lower) daily
What is a breaker?
A wave with a white crest that "breaks" on the beach.
What is the thermocline?
The area where cold deep water mixes with warm shallow water