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hakalele
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34
Science
8th Grade
02/24/2013

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Term
contenental shelf
Definition
a shelf that is on a gental slope that survs away from the contennent
Term
contenental slope
Definition
a slope that drifts way from the contenant that is on more of a 90 degre angle.
Term
contenatal rise
Definition
the contalnetal rise is a sloped peice of land just below the contenetal slope that is not quite as steep as the contenetal slope 
Term
abbyssal plains 
Definition
is the bottom of the ocean (also called the ocean floor)
Term
seamount
Definition
a seamount is an underwater valcano 
Term
volcanic island
Definition
as the lava builds up from the underwater volcanos it makes one of these 
Term
guyot
Definition
over time with waves pounding at the volcanic island it erosion happens to the motant lava and it becomes a goyot (under water island 
Term
canyons
Definition
the are deep valleys that are caused by rivers that cut there way through making valleys or canyons
Term
trenches
Definition
are when 2 plates hit and one gose under annother one causing trenches (these over time can create earthquecks)
Term
watersheds
Definition
is an area surrounding by high elavation land is which all water runs to a comman destionation
Term

continentel divide 

 

Definition
follows the crest of the rockeys and seperates water flowing from the west and pacifac ocean from the north and east
Term
glaciers
Definition
are masses of ice and snow built up over thousands of years the accour only in cold climets
Term
crevasses
Definition
ice brakes and makes deep crevasses
Term
ciques
Definition
are small begining of glacers where ice snow and freeze thew
Term
arete
Definition
when 2 or more ciques come together
Term
horn
Definition
when 3 or more aretes come together and make a peramid shape
Term
hanging valley
Definition
when a small glacer meets a large one it creates a hanging valley (also called a frozen waterfall)
Term
fiords
Definition
when a u valley lies lises below sea level
Term
moraines
Definition
are large open feilds that may be signs of glacers
Term
eskers
Definition
are long snake like mounds of sand and gravle that mark the way of meltwater
Term
striations
Definition
when a glacer erodes it is easy for it to do it to sand stone but much harder to with hard rocks such as granet. it leaves smooth grooves called strations
Term
erratics
Definition
when a boulder/rock gets left abandond in a feild left from glacers
Term
icebergs
Definition

an iceberg is a block of ice that has frozen over they can be vary big under water too

 

Term
current
Definition
a current is a movement of water in a curcular motion (as the earth rotates this happens)
Term
gyeres
Definition

are bu=ig currents the five main ones ar

  • Indian Ocean Gyre
  • North Atlantic Gyre
  • North Pacific Gyre
  • South Atlantic Gyre
  • South Pacific Gyre
Term
specifac heat compacity
Definition
a mesure of a substances copacity to keep its heat
Term
wether
Definition
daily conditions
Term
climent
Definition
the wether average over meany years
Term
land breeze
Definition

 

water releses heat slow then land so at night it gets colder more inland but stays warm near the ocean

Term

sea breeze

 

Definition
durring the day water heats up slower so this resalts in colder days and warmer nights for bc
Term
tsunami
Definition
vary big waves caused by underwater rockslids, earthqecks, and volcanic activitys
Term
tides
Definition
hapen 2 times a day (2 in 2 out) these hapen when the gravatational pull of the moon and sun bulges the water
Term
tidal bulges
Definition
when the gravatational pull of the earth and the sun that makes the water balge
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