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Stack #1796006

why does water have unusual properties? because of it molecules
what 2 kinds of atoms make up water? one oxygen and two hydrogen atoms
what is the overall charge of a water molecule? a neutral charge
why is water called a universal solvent? because so many substances can dissolve in it
what is cohesion? the attraction of molecules that are alike or the same
what is adhesion? the attraction of molecules that are different
why do icebergs float? the icebergs are mostly made up of freshwater and have no salt so it would be less dense
why is the density of ice less than water? in ice the molecules are more spread apart so the density is less because in water their closer together
what are wind driven currents called? surface currents
what is one major wind belt? prevailing winds
how do surface currents form? the friction made from wind and water can move the water. the air particles drag the water and makes the water move
what is the Coriolis effect? the movement of the water caused by earths rotation
which way does surface currents carry water? horizontally
what is a gyre? a circular system of currents
which way does upwelling currents carry water? vertically
which direction does a density current move? downward
what does the density of water depend on? the amount of salt
what is salinity? the amount of salt ions making the sea salty
how does the water become salty? the water washed over rocks and carried it to the ocean
why does the salinity not increase overtime? while salts are added their also being removed
what is something that water absorbs? light
what is usually the temperature of the bottom layer of the ocean? near freezing
what causes water to become more dense? salinity and cold temperatures
how many layers can the ocean be divided into? three layers
Created by: jaclyndavis8