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