Flashcards in Wind/Density/Currents/Oceans Deck (64)
measures distance from the equator, north to south horizonatal lines
caused by wind, up to 400 cm deep, affects 10 percent of ocean water, moves 1-2m per second
measures distance from the prime meridian, vertical lines east to west
0 decrees latitude, recieves the most direct sunlight
0 degrees longitude, is in Greenwich, England
the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction.
the pressure within the atmosphere of Earth.
make a “square circle”, they transfer heat from the equator toward the poles.
an effect whereby a mass moving in a rotating system experiences a force acting perpendicular to the direction of motion and to the axis of rotation.
cirular patterns of cuurents are called
Deeper than 1000m
Affect 90% of ocean water
Move SLOWLY (1-2 m/day)
caused by density and gravity
At these deep-water formation areas, this exceptionally dense water sinks to the bottom of the ocean, driving what is known as the “global conveyor belt,” a global pattern of circulation within the oceans.
the degree of compactness of a substance.
Occurs when pulled up to the surface, bringing nutrients from the ocean floor, contain abundant marine life because of the high amount of nutrients!
the amount of salt
photosynthesizing microscopic organisms that float in sea water), which in turn provide a food source for millions of fish. help produce oxygen
what is the fuel that drives wind and ocean currents
heat from the sun
How is heat different from temperature
heat is thermal energy while temperature is kinetic energy
when heat is transferred through a liquid/gas
example of convection
when heat is transferred through a medium without changing the medium
example of conduction
impulses along the nerves
when heat/energy travels as a wave and does not need a medium
example of raditaion
How is heat transferred to the earth
what other ways is heat transfered around the earth
convection and conduction
Why do we have day and night
The earth roates around the sun, leaving the sun shining on the part that faces the earth
why do we have seasons
Either the northern or southern hemisphere is tilted towards the sun
Why is the equator warmer than the poles
it recieves the most direct sunlight