Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| why does water have unusual properties? | because of it molecules
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| what 2 kinds of atoms make up water? | one oxygen and two hydrogen atoms
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| what is the overall charge of a water molecule? | a neutral charge
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| why is water called a universal solvent? | because so many substances can dissolve in it
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| what is cohesion? | the attraction of molecules that are alike or the same
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| what is adhesion? | the attraction of molecules that are different
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| why do icebergs float? | the icebergs are mostly made up of freshwater and have no salt so it would be less dense
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| 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
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| what are wind driven currents called? | surface currents
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| what is one major wind belt? | prevailing winds
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| 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
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| what is the Coriolis effect? | the movement of the water caused by earths rotation
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| which way does surface currents carry water? | horizontally
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| what is a gyre? | a circular system of currents
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| which way does upwelling currents carry water? | vertically
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| which direction does a density current move? | downward
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| what does the density of water depend on? | the amount of salt
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| what is salinity? | the amount of salt ions making the sea salty
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| how does the water become salty? | the water washed over rocks and carried it to the ocean
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| why does the salinity not increase overtime? | while salts are added their also being removed
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| what is something that water absorbs? | light
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| what is usually the temperature of the bottom layer of the ocean? | near freezing
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| what causes water to become more dense? | salinity and cold temperatures
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| how many layers can the ocean be divided into? | three layers
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
jaclyndavis8
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