Unit Review Post-Oceanography

OCEANOGRAPHY

-71% of the Earth is covered in water
-the average depth of the oceans: 4,000 meters

Pacific Ocean:
-deepest and largest ocean in the world: most diversity of life

Atlantic Ocean:
-narrow; connects the Arctic and Antarctic

Indian Ocean:
-smallest of of three oceans

Southern Ocean:
-connects three ocean basins; source of cold, dense water.

Passive Continental Margin:
-not at a plate boundary
-no tectonic activity
EX) Atlantic coast-gentle rise

Active Continental Margin:
-plate boundary
-plate tectonic activity (mountains, earthquakes)
EX) Pacific coast- steep slopes; trenches

WAVES:
crest: highest point of a wave
trough: lowest point of a wave
wave height: vertical distance between any crest and succeeding trough
wave length: horizontal distance between two successive crests or troughs
still water level: what the water level would be if there were no waves
period: time it takes for two successive crests to pass a fixed point (6-16 seconds)