Vocabulary
Moving Waters
The Oceans
Ocean Life
Random

100

A very long and narrow canyon-like depression deep in the ocean floor
Trench

100

A body of water moving very quickly in a definite direction through surrounding waters that are moving more slowly
Current

100

How deep the ocean's waters are
Depth

100

What is it called when an animal has characteristics that help it survive in its habitat
Adaptation

100

Which is smaller: a sea or an ocean?
Sea

200

How salty the water is
Salinity

200

Large current system from Mexico to Florida and the east coast
Gulf Stream

200

How much of the world's surface is covered up by oceans?
70%

200

Mussels, crabs, clams, and other beach life live in this zone
Tidal Zone

200

True or false: The moon was much closer to the Earth three billion years ago when the oceans were forming.
True

300

Very wide, very flat sections of the deep ocean floor, made of thick layers of sediment
Abyssal Plain

300

Cold, salty water sinks and warm shallow currents travel on top of it. This series of currents travel all over the world.
Global Conveyor Belt

300

Accumulated sediment underwater
Continental Rise

300

This zone stretches from the surface of the ocean down 200 meters
Sunlight Zone

300

True or false: Mount Everest is taller than the Mariana Trench is deep.
False

400

The underwater edge of a continent
Continental Shelf

400

Can an item spilled into the ocean end up on another continent? Explain why or why not.
Yes. (Reasons vary.) Think of the rubber duck example.

400

The moon's gravity pulls on Earth's oceans to make these
Tides

400

Name a creature that creates its own light
Anglerfish

400

The amount of mass packed into a contained space
Density

500

A chain of high elevation found underwater in places where the Earth is shifting
Mid-Ocean Ridge

500

Which type of ocean water constantly moves toward the surface: warm or cold?
Warm Water

500

What is the bottom or low point of a wave called?
Trough

500

The temperatures can reach zero degrees Celsius in this zone. It exists between 4,000 and 6,000 meters below the ocean's surface.
Abyssal Zone

500

A very long, narrow canyon-like depression deep in the ocean floor
Trench