Ocean Floor
Ocean life
Terms
Food Chain
Movement of the Ocean
100
What is the deepest feature of the ocean called?
Ocean trench
100
As the ocean water gets deeper, what happens to the light?
Light decreases
100
What is the amount of salt in a body of water known as?
Salinity
100
Energy being passed between organisms in an ocean is called?
Food chain
100
What do sailors still use to help them move across the ocean?
Currents
200
Wha is the flat area of the ocean floor?
Abyssal Plain
200
As the ocean water gets deeper, what happens to the water pressure?
It increases
200
What is the name of a long-distance current in the Atlantic Ocean that carries warm water to Europe?
The Gulf stream
200
These types of organisms use energy ffrom the sun to make their own food.
Producers
200
What is responsible for changing the tides?
The moon
300
What ocean floor feature is a shallow area of sediment near the shore?
Continental shelf
300
As the ocean water gets deeper, what happens to the temperature?
Temperature decreases
300
What is the term for the up-and-down movement of water caused by energy collecting on the surface?
A wave
300
These organisms get their energy by eating other organisms.
Composer
300
How many TOTAL tides are there?
4, 2 high tides, 2 low tides
400
What is the steep slope at the edge of the continental shelf?
Continental slope
400
The main difference between ocean water and lake water is that ocean water contains- A) Oxygen B) Salt C) Algae D) Plants
B) Salt
400
Saltier, colder ocean water is more ________ than warmer water.
Dense
400
Bacteria is what in the ocean?
Decomposer
400
Differences in water density caused by temperature and salinity create these: __________.
Currents
500
What is the order of the ocean floor?
Continental shelf, Continental slope, Continental rise, Abyssal plain, Ocean trench
500
The ocean floor-
A) has mountains, plains, and ridges like land surfaces.
B) is always a flat bed of sand.
C) is covered by the same amount of water everywhere.
D) covers less area than the land.
A) has mountains, plains, and ridges like land surfaces.
500
Many species of ocean organisms live in coral reefs. Most coral reefs are found near the equator.
What does the location of coral reefs suggest about coral organisms?
A) Corals mostly live around volcanic islands.
B) Corals need warm seawater to survive.
C) Ocean currents keep corals from migrating.
D) Most ocean waters are too deep for corals.
B) Corals need warm seawater to survive.
500
What would happen if Herring was taken out of the chain?
If herring were removed from the food chain, animals that eat herring such as seals, cod, tuna, and dogfish would have less food and their populations might decrease.
Organisms that herring eat, like krill and phytoplankton, might increase because they would no longer be eaten as much. This would cause the food web to become unbalanced.
500
What two ocean floor features cause waves to crash on the shore?
Continental shelf and continental slope