Vocab
Saltiness of the ocean
Salinity
Which part of the ocean has the lowest temperature?
the bottom (the trenches)
Where does the greatest amount of photosynthesis occur?
Sunlight Zone (Epipelagic)
The gas most dissolved in the ocean
Nitrogen gas
Greek god of the underworld
Hades
The fancy name for rainfall
precipitation
An increased salinity would mean a _________ density.
increased
Which zone has some sunlight, but not a lot?
Twilight zone
Name of person who traveled to the bottom of the Mariana Trench in 2012
James Cameron
Name of microscopic floating algae
Phytoplankton
Mass divided by volume
density
Which part of the ocean has the lowest pressure?
The top (it increases as you go down)
Which zone is where the titanic is currently located?
The Abyss
It is very rainy near the equator. What kind of salinity would you expect oceans near there to have?
Less salinity because more precipitation.
Name of deepest trench in the world
Mariana Trench
A liquid turning into a gas
evaporation
An increase in temperature does what to salinity?
Increases it
Which zones are completely dark?
Midnight Zone, the Abyss, and the Hadal Zone
What two movies did James Cameron direct?
Avatar and Titanic
Reason why ocean water can still be liquid at -2 degrees Celsius, even though water freezes at 0 degrees
The salt lowers the freezing point of the water
The name of the part of the ocean that goes down to 200m. Most sea life is found here. It is not a zone.
Continental shelf
Carbon dioxide gas in the atmosphere is being dissolved into the ocean water, which in turn increases acidity and kills carbonate (which coral reefs need to survive)
Why would a zone with more chlorophyll have more biodiversity?
Because chlorophyll=photosynthesis= bottom of the food chain (which is food for other animals)
List all 5 zones in order from least amount of saltiness to most amount of saltiness
Hydrothermal vents are the underwater equivalent as what on land?
Geysers