Harris Ch 18-19 voca Word Scramble
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| Question | Answer |
| Basin- | low area on Earth in which an ocean formed when the area filled with water from torrential rain. |
| Salinity- | a measure of the amount of salts dissolved in seawater. |
| Surface current- | wind-powered ocean current that moves horizontally-parallel to Earth’s surface-and moves only the upper few hundred meters of seawater. |
| Coriolis Effect- | causes moving air and water to turn left in the southern hemisphere and turn left in the northern hemisphere due to the Earth rotation. |
| Upwelling- | Circulation in the ocean that brings deep, cold water to the ocean surface. |
| Density current- | circulation pattern on the ocean that forms when a mass of more dense seawater sinks beneath less dense water. |
| Wave – | Rhythmic movement that carries energy through matter or space; can be described by its crest, trough, wave-length, and wave height. |
| Crest- | highest point of the wave. |
| Trough | lowest point of a wave |
| Breaker | collapsing ocean wave that forms in shallow water and breaks into the shore. |
| Tide- | daily rise and fall in sea level caused, for the most part, by the interaction of gravity in the Earth-Moon system. |
| Tidal range- | the difference between the level of the ocean at high tide and the level at low tide. |
| Continental shelf- | gradually sloping end of a continent that extends beneath the ocean and provides a home for most marine organisms. |
| Continental slope- | ocean basin feature that dips steeply down from the continental shelf. |
| Abyssal Plain- | flat seafloor area from 4,000m to 6,000m below the ocean surface, formed by the deposition of sediments. |
| Mid-Ocean ridge | -Area where new oceans floor are formed when lave erupts through the cracks in the Earth’s crust. |
| Trench | - long, narrow, steep-sided depression, in the seafloor formed where one crustal plate sinks beneath another. |
| Photosynthesis- | Food making process using light energy from the Sun, carbon dioxide and water. |
| Chemosynthesis | -food making process using sulfur or nitrogen compounds, rather than light energy from the Sun that is used by bacteria living near thermal vents. |
| Plankton | - marine plants and animals that drift into ocean currents. |
| Nekton | -marine organisms that actively swim in the ocean. |
| Benthos | - marine plants and animal that live on or in the ocean floor. |
| Estuary | - area where a river meets the ocean that contains a mixture of freshwater and ocean water and provides an important habitat to many marine organisms. |
| Reef | - ridged, wave-resistant, ocean margin habit built by corals from skeletal materials and calcium. |
| Pollution | - introduction of wastes to an environment, such as sewage and chemicals that can damage organisms. |
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marcrobertdillon
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