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Unit 2 Oceanography
STUDY!!!
25
Science
6th Grade
11/01/2012

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Term
Salinity
Definition
The amount of salt in a solution.
Term
Thermocline
Definition
A layer in a body of water in which temperture drops with increased depth faster thn it does in othr layers.
Term
Continental Margin
Definition
The edge of the continent that is covered by the ocean.
Term
Deep-Ocean Basin
Definition
Begins at the end of the Continental Margin.
Term
Mid-Ocean Ridge
Definition
A long, undersea mountain chain that forms along the floor of the ocean.
Term
Ocean Trench
Definition
A long, narrow depression in the Deep-Ocean Basin.
Term
Wave
Definition
Any disturbance that transfers energy through matter or empty space.
Term
Ocean Wave
Definition
Any disturbance thattransfers energy through ocean water.
Term
Crest
Definition
The very top point of the wave.
Term
Trough
Definition
The lowest point of the wave.
Term
Wavelength
Definition
The distnce between crest to cest, or trough to trough.
Term
Amplitude
Definition
Is half the distance of the crest and trough.
Term
Wave Period
Definition
Is a measurement of how much time it takes for a wave to pass a fixed point.
Term
Mechanical Wave
Definition
This wave carrys enegy through matter, such as water.
Term
Wind, Earthquakes, Volcanoes, and Landslides
Definition
Cause most waves.
Term
Tsunami
Definition
A series of waves that form wen a large volume of ocean water issuddenly moved up and down.
Term
Ocean Currents
Definition
The oceans contain streamlike movements or water.
Term
Surface Currents
Definition
Ocean currents that occur at or near the surface of the ocean, caused by wind.
Term
Continental Deflection
Definition
Crrents change direction when they meet continents.
Term
Coriolis Effect
Definition
The deflection of moving objects from straight path due to Earth's rotation.
Term
Deep Currents
Definition
Movements of ocean water far below the surface.
Term
Convection Current
Definition
A movement of water that results from density differences in the ocean.
Term
Upwelling
Definition
The warm surface water is replacedby cold, nutrient-rich water from the deep ocean in a process.
Term
slope
Definition
slide
Term
self
Definition
top
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