4th Grade Ocean Test

Front

What is the flat, deep, and smooth part of the ocean floor called?

Back

Abyssal Plain

Front

What is the use of sound waves to determine the depth of the ocean called?

Back

Sonar

Front

What is the lowest point of a wave called?

Back

Trough

Front

Where are you walking when you are wading in the ocean?

Back

Continental Shelf

Front

What is a chain of mountains that run through an ocean basin called?

Back

Mid-ocean-ridge

Front

What is the area of the ocean floor that is closest to the shore called?

Back

Continental Shelf

Front

What is the steep slope between the continental shelf and the abyssal plain called?

Back

Continental Slope

Front

What is the term for the process of sediment being carried away by water?

Back

Erosion

Front

What is the term for the amount of salt in water?

Back

Salinity

Front

What is the underwater valley called that is deeper than the surrounding ocean floor?

Back

Ocean Trench