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19 Cards in this Set
- Front
- Back
About how much of the earth is covered by water ?
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About 70% of the World is covered by Water.
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What are low and high tides caused by ?
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They are caused by the pull of the moon
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What is matter ?
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Matter is anything thats has mass of takes up space.
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What are the three states of matter ?
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Liquid, Gas and Solids are the three states of matter .
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What is a atom?
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A atom is the smallest piece of a pure substance.
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Describe a molecule ?
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A molecule is a group of two or more atoms.
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What is a element ?
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A element is a substance of made out of atoms of the same type
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What is a compound ?
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A substance is made out of more than one atom.
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What is mixture ?
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A mixture is a combination of two or more compounds or elements with out a chemical reaction.
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What is a solution ?
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A mixture where the particles of two or more pure substances are mixed evenly .
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What is the definition of salinity?
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Salinity is the amount of salt is a salt water solution
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What is the definition of of density?
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Density is the amount of mass per volume. Salt water has a higher density then fresh water, because the molecules are closer together in salt .
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What is the continental shelf ?
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The flat zone extending from the beach to the continental slope.It can be very wide or very short reaches depths of 200 meters. This is what most ocean life is
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What is the definition of the continental slope?
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The continental slope is the steep slope down to the ocean floor. It averages from 200 meters to 4000 meters in depth
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What is the continental rise ?
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The continental rise is the transition area before the abyssal plain. Some sediment from the continent settles here
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What is the definition of the abyssal plain?
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The abyssal plain is the bottom of the deep ocean basin. Sediments wash down and cover many of the deep ocean features, making the abyssal plain look mostly flat.
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Describe A surface Current
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A surface current occurs in the sunlight zone. They are caused by the wind .
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Describe a Deep Ocean Current
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Occurs in the midnight zone. They are caused by different density due to temperature and salinity
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Describe a Gulf Stream
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A strong northern traveling current , located in the Atlantic Ocean
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