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21 Cards in this Set
- Front
- Back
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Lesson
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1
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Salinity
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the total amount of dissolved salts in a sample of water.
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Sonar
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a major advance in ocean-flooring mapping
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Seamount
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a volcanic mountain rising from the ocean floor that doesn't reach the surface
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Trench
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a long, deep valley on the ocean floor through which old ocean floor sinks back toward the mantle
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Continental Slope
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the steep edge of the continental shelf
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Continental Shelf
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a gently slopping shallow area that extends outward from the edge of each continent
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Abyssal Plain
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a broad area covered with thick layers of mud and silt.
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Mid-ocean Ridges
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long chains of mountains on the ocean floors
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Lesson
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2
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Wave
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the movement of energy through a body of water
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Longshore Drift
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this movement of sand along the beach
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Rip Current
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a rush of water that flows rapidly back to sea through a narrow opening
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Groin
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one way to reduce beach erosion is to build a wall of rocks or concrete
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Intertidal Zone
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begins at the highest high-tide line on land
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Neritic Zone
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from the low-tide line out to the edge of the point on the continental shelf exposed by the lowest low tide
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Open-ocean Zone
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beyond the edge of continental shelf lie
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Plankton
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tiny algae and animals that float in the water and are carried by waves and currents
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Nekton
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free-swimming animals that can move throughout the water column
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Benthos
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organisms that inhabit the ocean floor
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Food Web
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all the feeding relationship[s that exist in a habitat make up
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