Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
oceans
| Question | Answer |
|---|---|
| earth's main oceans | Indian, Pacific, Southern, Arctic, Atlantic |
| 2 sources of water | asteroids, vapor from volcanoes |
| salinity | Measure of mass of dissolved solids in a mass of water. |
| brackish water | salt water and fresh water mixed in, usually a 1 to 17 ppt salinity |
| sea water | water from sea, salt water with a ppt of 35 |
| four criteria scientists use for classifying ocean zones | amount of sunlight, salinity, density, temperature |
| surface zone | shallow water that gets the greatest amount of sunlight, most plant and sea life lives here. |
| middle zone | , only a faint blue green light reaches this zone. |
| adhesion | when 2 unlike particles are attracted to each other due to the polarity |
| cohesion | when 2 or more particles are the same substance and are attracted to each other. |
| ocean currents | a large volume of water flowing in a certan direction. |
| gyre | a circular system of currents |
| 5 major gyres | south Atlantic north Atlantic South Pacific north Pacific and Indian ocean gyre. |
| continental shelf | The continental shelf is an underwater landmass which extends from a continent, resulting in an area of relatively shallow water |
| continental margin | The continental margin is the zone of the ocean floor that separates the thin oceanic crust from thick continental crust. Together, the continental shelf, continental slope, and continental rise are called continental margin |
| trench | A trench is a type of excavation or depression in the ground that is generally deeper than it is wide |
| mid ocean ridge | A mid-ocean ridge is an underwater mountain system that consists of various mountain ranges (chains), typically having a valley known as a rift running along its spine, formed by plate tectonics |
| density currents | vertical currents that move water downwards. |
| upwellings | surface water being pushed down by cooler water to bring nutrient rich water to the surface. |
| continental rise | the area where land rises to the shore |
| abyssal plains | large flat area on the ocean floor that extends across basins. |
| resources from sea floor | oil, natural gas, methane hydrates,zinc, gold maganese |
| 4 criteria scientists use for classifying ocean zones | amount of sunlight, salinity, density,temperature. |
Created by:
greenleaf
Popular Science sets