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Oceanography Vocabulary

Andrew Vickers
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Acronym for self-contained underwater breathing apparatus; portable air tain used by divers
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NaCl (chemical formula); common table salt; the most common salt in seawater
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An instrument that measures the density
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A method that uses sound waves to determine the depth of the ocean floor; also called the precision depth recorder
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An instrument that measures the amount of substances in seawater
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An electrically charged atom or molecule formed by gaining or losing one or more electrons
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A scoop-like device use to collect rock samples from the ocean floor
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Small, usually microscopic plant or animal organisms that float or drift in the ocean
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A cone-shaped net of fine mesh that is pulled through water to collect plankton
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An instrument used to measure the direction and speed of ocean currents
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The state or quality of being clear or transparent to the eye; clearness of water; depth to which light can travel in water
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Echo sounding using powerful sound waves that reach below the surface of the ocean floor
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A cylindrical device used to obtain a sample of sediment from the ocean floor
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A method that uses sound waves to view a wide area of the ocean floor; provides pictures of objects on the ocean floor
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An instrument used to measure the clarity (clearness) of water
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The gradual return of persons (such as deep-sea divers) or conditions to normal atmospheric pressure
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A fishing or sampling net that hangs straight in the water, separating one area from another
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An instrument that records the temperature at the ocean's surface and at various depths below the surface
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A device that picks up sediment from the ocean floor
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A large net pulled along the bottom of the ocean to gather animals that live on the ocean floor
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In science - the mass (amount of matter) of an object per unit volume (space occupied); density = mass/volume (d) - m/v
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The measure of the amount of dissolved salts (solids) in seawater