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Chapter 8 Oceanography
parts of the ocean floor
18
Science
8th Grade
04/10/2014

Additional Science Flashcards

 


 

Cards

Term

Continental Shelf

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Definition
The gradually sloping end of the continent that extends under the ocean.
Term
Continental Slope
Definition
The continental slope extends from the outer edge of the continental shelf down to the ocean floor.
Term
Abyssal Plains
Definition
Located 4,000 to 6,000m below the ocean surface. The abyssal plain is the flat seafloor created from sediment deposit from land.
Term

Mid Ocean Ridges

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Definition
Mid-ocean ridge is tha area in an ocean basin where new ocean floor in formed
Term

Find the continental slope.

The width of a continental slope is 40km. It increases in depth by 2,000m. What is the slope of the continental slope?

 

**Remember**

slope=rise/run

Definition
Answer: 50m/1km
Term
Trench
Definition
A trench is a long narrow, steep-sided depression where one crustal plate sinks beneath another.
Term
Nekton
Definition
Animals that activey swim, rather than drift with the currents in the ocean, are called nekton.
Term
Photosynthesis
Definition
The process by which producers use carbon dioxide, water and sunlight to make food.
Term
What is passsed on at each stage in a food chain?
Definition
Energy!!
Term
Plankton
Definition
Marine organisms that drift with the currents are called plankton.
Term
Benthos
Definition
The plants and animals living on or in the seaflorr are benthos. They include;crabs, swa urchin, snails, sea star, and flounder.
Term
What part of the ocean must adapt to change quickly?
Definition
Intertidal zone...aka the shore.
Term
Estuary
Definition
The area where the mouth of a river opens into on ocean. There is a mixture of freshwater and salt water.
Term
Reef
Definition
A reef is a rigid, wave-resistant  structure built by corals.
Term
Pollution
Definition
Harmful waste products, chemicals, and other substances not native to an environment.
Term
Pollutant
Definition
is a substance that causes damage to organisms by interfering with life processes
Term

Coliform

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Definition
Bacteria from sweage that contaminate the water systems.
Term

Stewardship

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Definition
Actively protecting and maintaining a clean environment.
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