low area on Earth in which an ocean formed when the area filled with water from torrential rain.

a measure of the amount of salts dissolved in seawater.

wind-powered ocean current that moves horizontally-parallel to Earth’s surface-and moves only the upper few hundred meters of seawater.

causes moving air and water to turn left in the southern hemisphere and turn left in the northern hemisphere due to the Earth rotation.

Circulation in the ocean that brings deep, cold water to the ocean surface.

circulation pattern on the ocean that forms when a mass of more dense seawater sinks beneath less dense water.

Rhythmic movement that carries energy through matter or space; can be described by its crest, trough, wave-length, and wave height.

collapsing ocean wave that forms in shallow water and breaks into the shore.

daily rise and fall in sea level caused, for the most part, by the interaction of gravity in the Earth-Moon system.

the difference between the level of the ocean at high tide and the level at low tide.

gradually sloping end of a continent that extends beneath the ocean and provides a home for most marine organisms.

ocean basin feature that dips steeply down from the continental shelf.

flat seafloor area from 4,000m to 6,000m below the ocean surface, formed by the deposition of sediments.

-Area where new oceans floor are formed when lave erupts through the cracks in the Earth’s crust.

- long, narrow, steep-sided depression, in the seafloor formed where one crustal plate sinks beneath another.

Food making process using light energy from the Sun, carbon dioxide and water.

-food making process using sulfur or nitrogen compounds, rather than light energy from the Sun that is used by bacteria living near thermal vents.

- marine plants and animals that drift into ocean currents.

-marine organisms that actively swim in the ocean.

- marine plants and animal that live on or in the ocean floor.

- 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.

- ridged, wave-resistant, ocean margin habit built by corals from skeletal materials and calcium.

- introduction of wastes to an environment, such as sewage and chemicals that can damage organisms.

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Harris Ch 18-19 voca

Science Chapter 18-19 Vocab Words

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.

Created by: marcrobertdillon

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