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12 terms

6th grade earth science ch 18 ocean motion

12 words
STUDY
PLAY
wave
rhythmic movement that carries energy through matter or space
surface current
wind-powered ocean current that moves water parallel to Earth's surface
salinity
a measure of the amount of salts dissolved in seawater
basin
low area on Earth
Coriolis effect
causes moving air and water to turn left in the southern hemisphere and right in the northern hemisphere due to Earth's rotation
upwelling
verical circulation in the ocean that brings deep, cold water to the ocean surface
density current
circulation pattern in the ocean that forms when a mass of more dense seawater sinks beneath less dense seawater
crest
highest point of a wave
trough
lowest point of a wave
breaker
collapsing ocean wave that forms in shallow water and breaks onto the shore
tide
daily rise and fall in sea level
tidal range
the difference between the level of the ocean at high tide and the level at low tide