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Oceanography

6th grade defintion

QuestionAnswer
The Atlantic Ocean is bordered by which continents Africa, South America, North America, and Europe
continental shelf slopes down gently from the edge of the continent mostly no deeper than150 meters
continental slope slopes steeply from the continental shelf; it can drop down to 2,000 meters
submarine canyon steep v-shaped canyon that cuts through the continental slope and the shelf
abyssal plain flattest place on Earth
seamounts sharp inactive volcanos
guyot a seamount that waves smash into and create a flat top
mid-ocean ridge longest mountain chain in the world; site of sea floor spreding
rift valley deep valley in the mid-ocean ridge
deep-sea trench subduction occurs here
salinity measure of the amount of dissolved salts in a given amount of liquid
sonar sound navigation and ranging
desalination a prossese of removing salt from ocean floor
ocean currents movement of ocean water that follows a regular patteren
surface currents horizontal movement of ocean water that is caused by wind and that occurs or near the ocean's surface
the Coriolis effect apparent curing of a path of a moving object from an other wise straight path due to the Earth's rotation
deep current a stream like movement of ocean water far below the surface
tide periodic rise and fall of the water level in the oceans and other large bodies of water
what does "thermocline" mean transition between light and darkness
where is the thermocline 300m-700m below sea level
what is the end of the surface zone and begin the transition zone 300m
what is the range of temp. in the deep zone one degrees celsius thought three degrees celsuis
the ------ ocean is the largest ocean Pacific
the -------- ocean is the smallest ocean Artic
the ------- ocean is getting larger because -------- Atlantic; of a divergent boundary ( mid-ocean ridge )
the ------- ocean is getting smaller because ---------- Pacific; the convergent boundary (subduction)
the surface zone has the highest----- level salinity
the deep zone is the most ----- zone dense
Created by: loren0
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