Motion of the Ocean
Floor Features
Secrets of the Deep
Ocean Ecosystem
Water Fun Facts
Ocean Zones
100
A disturbance seen on the surface of water usually caused by wind
What is a wave?
100
The 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 into a liquid
What is salinity?
100

Plankton must have these this to survive in the ocean.

What is sunlight?

100
This much of the surface of the Earth is covered by oceans.
What is: 70%?
100

The layer that makes up about 90% of the earth's oceans.

What is the midnight zone?

200
These are caused by the gravitational pull of the moon.
What are tides?
200
A deep narrow valley where two plates collide; considered the deepest part of the ocean
What is a trench?
200

This determines the salinity of ocean water that is near land.

What is evaporation or run-off from fresh water sources?

200
Baleen whales live in areas of the ocean rich with this.
What is: plankton?
200
This part of the ocean floor is the beach where people usually swim.
What is: the continental shelf?
200

The layer where photosynthesis takes place.

What is the sunlight 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 bottom of the continental slope.
What is the abyssal plain?
300

Compare the density of water with low salinity to water with high salinity.

What is the water with low salinity is less dense?

300

This would be the lowest on the food chain.

A. zooplankton

B. flounder

C. shark

D. killer whale

300

Name two ways that humans negatively impact the ocean ecosystem.

What is overfishing, pollution, drilling for oil, burning fossil fuels, or boating in shallow waters?

300

Animals have these to help them survive in cold, dense, dark water.

What are adaptations?

400
These cause surface ocean currents.
What are: the wind & the rotation of the Earth?
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

The definition of an ecosystem.

What is how living and nonliving things interact within one environment?

400

This type of current is vertical and moves water from the bottom to the top of the ocean.

What is deep ocean current?

400

The most colorful animals live in this zone.

What is the sunlight zone?

500
This causes deep ocean currents.
What is: change in temperature and salinity?
500
These are large volcanoes rising out of the sea floor plains.
What are seamounts?
500
This is what happens to water pressure as you go deeper into the ocean.
What is: increases?
500

This is the light that animals in the midnight zone gives off as a physical adaptation.

What is bioluminescence?

500
This produces much of the Earth's oxygen and serves as the base of the ocean ecosystem.
What is: plankton?
500

This zone begins about 200 meters below the surface of the ocean.

What is the twilight zone?

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