Motion of the Ocean
Floor Features
Secrets of the Deep
Ocean Ecosystem
How Low Can You Go
100

Often described as "rivers of water" these are caused by the wind.

What are surface currents?

100

The steeply sloping area between the continental shelf and the continental rise; covered with sand, mud, and rocks

What is the continental slope?

100

The amount of salt dissolved in the ocean 

What is salinity?

100

Phytoplankton (a plant) is an example of this part of a food chain.

What is: a producer?

100

This describes the first 200 meters of the ocean

What is: the sunlight zone?

200

These describe the clockwise and counter clockwise movement of ocean currents.

What are gyres?

200
A deep narrow valley where two plates collide; considered the deepest part of the ocean
What is a trench?
200

These determine the salinity of ocean water that is near land.

What are rivers or runoff?

200

The connections between food chains form this

What is: a food web?

200

This describes ocean depths of 1,000 meters or more

What is: the midnight zone?

300
This is a warm river of water in the Atlantic Ocean moving north along the East Coast of the United States.
What is the Gulf Stream?
300

This is the wide flat area that extends out from the continental rise and represents the true ocean floor.

What is the abyssal plain?

300

This is what happens to the amount of sunlight as you go deeper into the ocean.

What is: decreases?

300

This nonliving factor is the primary source of energy in a food chain.

What is: the sun?

300

This area of the ocean receives very limited sunlight.

What is: the twilight zone?

400

These move in a vertical pattern from the surface of the ocean down to the ocean floor and back up again.

What are deep water/deep ocean currents?

400
Long mountain chains that run along the ocean floor; formed from volcanic activity
What are oceanic ridges?
400
This is what happens to temperature as you go deeper into the ocean.
What is: decreases?
400

In an ocean food web, this term describes sharks, seals, polar bears, dolphins, etc. 

What are: consumers?

400

This ocean feature is the deepest measured point on earth

What is: the Mariana Trench?

500

These two things cause deep water/deep ocean currents.

What are: changes in temperature and salinity?

500

This feature begins at the border of a continent where the land slopes gradually away from the shore.

What is the continental shelf?

500
This is what happens to water pressure as you go deeper into the ocean.
What is: increases?
500

This is the direction of energy flow in a food chain.

What is: from the prey (animal or plant being eaten) to the predator (animal doing the eating)?

500
Ocean animals in the twilight and midnight zones have special organs or appendages which create light.

What is: bioluminescence?