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Measuring Ocean Voc
Measuring the Ocean VOCABULARY
| Term | Definition |
|---|---|
| corer | a cylindrical device used to obtain a sample of sediment from the ocean floor |
| decompression | the gradual return of persons (such as deep-sea divers) or conditions to normal atmospheric pressure |
| dredge | a scoop-like device used to collect rock samples from the ocean floor |
| drift bottle | an instrument used to measure the direction and speed of ocean currents |
| echo sounding | a method that uses sound waves to determine the depth of the ocean floor; also called the precision depth recorder |
| grab sampler | a device that picks up sediment from the ocean floor |
| hydrometer | an instrument that measures the density of water |
| Nansen bottle | an instrument that records the temperature at the ocean’s surface and at various depths below the surface |
| plankton net | a cone-shaped net of fine mesh that is pulled through water to collect plankton |
| salinity | the measure of the amount of dissolved salts (solids) in seawater |
| secchi disk | an instrument used to measure the clarity (clearness) of water seine net |
| seismic profiling | echo sounding using powerful sound waves that reach below the surface of the ocean floor |
| side scan sonar | a method that uses sound waves to view a wide area of the ocean floor; provides pictures of objects on the ocean floor |
| titration apparatus | an instrument that measures the amount of substances in seawater |
| trawl | a large net pulled along the bottom of the ocean to gather animals that live on the ocean floor |
Created by:
sbrown235
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