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Oceanography
Oceanography vocabulary
32
Science
7th Grade
04/06/2010

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Cards

Term
The 4 ocean regions
Definition
atlantic, pacific, indian, arctic
Term
what percent of the earth is the ocean
Definition
about 71%
Term
oceans largest to smallest
Definition
PAIAR pacific atlantic indian arctic
Term
oceans saltiness
Definition
rain land salt ocean evaporate just water moves over land again then rains salt ocean evaporates
Term
where is the saltiest water
Definition
near land
Term
what causes ocean currents
Definition
energy from the sun and gravity from the earth
Term
the 3 ingredients of sand
Definition
shells quartz detritus
Term
four oceans and their deepest points
Definition
pacific-36200 ft. mariana trench
atlantic-28374 ft. puerto rico trench
indian-25344 ft. java trench
arctic-17881 ft. eurasian basin
Term
continental shelf
Definition
gentle sloping areas ends at continental slope
Term
continental slope
Definition
leads down to the deepest parts of the ocean
Term
abyss
Definition
depths of the ocean floor
Term
abyssal plain
Definition
flat surface of the abyss
Term
seamount
Definition
underwater mountain
Term
island
Definition
a seamount that extends above the oceans surface
Term
guyot
Definition
flat topped seamount
Term
trench
Definition
underwater valley V shaped narrow and deep
Term
density currents
Definition
made by different densitys of water or the different density in water makes them
Term
crests
Definition
highest point in a wave
Term
trough
Definition
lowest point in a wave
Term
icebergs
Definition
floating mass of ice
Term
glacier
Definition
a mass of ice on land
Term
fathoms
Definition
a unit of length equal to six feet
Term
sounding
Definition
measuring the depth of an area of water
Term
trade winds
Definition
blow surface waters west
Term
westerlies
Definition
blow surface waters east
Term
the gulf stream
Definition
one of the strongest currents known runs along the east coast of the usa
Term
gyres
Definition
water currents make huge loops
Term
phytoplankton
Definition
most abundant plants in ocean
Term
nekton
Definition
those that actively swim
Term
benthos
Definition
live on the bottom of ocean
Term
pangea
Definition
a supercontinent
Term
bioluminescence
Definition
the production of light by living organisms
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