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Ocean Study Stack

what is cohesion? the attraction of molecules that are alike.
what is adhesion? the attraction of molecules that aren't alike.
what states of matter can water exist in nature on earth? solid liquid & gas
what causes water's unique properties? how dense the water is, liquid is denser then solid, etc.
why does ice float in water? the ice is less dense then the water.
list two ways which water is a unique compound. ice floats in water, substances dissolve in water.
how does ice make it possible for living things to live in the lake during winter? it traps the heat inside the lake like an insulator.
what is polarity? polarity is having two opposites.
list the five main oceans. pacific, Atlantic, Indian, southern, & Arctic
how did the water in earth's water become salty? water washed over the rocks & over some time minerals turned into salt.
what is salinity? salinity is a measure of mass of dissolved solids in a mass of water.
what is brackish water? brackish water is where salt water & fresh water mix.
what are ocean trenches? the deepest part of the ocean
what is the four criteria scientists use when classifying ocean zones? sunlight, temperature, salinity, density
what are the three regions of continental margins? continental shelf, continental slope, & continental rise
describe each ocean zone? surface- shallow, greatest amount of sunlight. middle- wavelength is absorbed. deep- plants don't grow, no sunlight, called the midnight zone.
what is an ocean current? an ocean current is a large volume of water flowing in a certain direction.
what is a gyre? a circular system of currents.
what are 5 major gyres? north atlantic, north pacific, south pacific, south atlantic, & indian ocean
how does upwelling occur? upwelling occurs when wind blows across the ocean's surface & washes water away.
what's a benefit of upwelling? brings nutrient-rich water from deep in the ocean to the ocean’s surface which supports large populations of fish, algae & ocean organisms.
describe a density current. & what are they caused by? moves downward, & moves water deeper into the ocean. it is caused by changes in density.
how do surface currents affect weather & climate? cold water currents release moisture into the air.
what are some resources from the seafloor? energy- oil, natural gas, methane hydrates. minerals- gold, zinc
Created by: rils5