Oceanography Exam 1
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34 Terms
Topography
A description of surface features on land.
Bathymetry
the features on the floor of the ocean
Electronegativity
A measure of the ability of an atom in a chemical compound to attract electrons
Oxygen has
high electronegativity
polar molecule
a molecule in which one side of the molecule is slightly negative and the opposite side is slightly positive
What is the molecular shape of H2O?
Mickey Mouse shape, oxygen atom in the middle, two hydrogen below it
Temperature
a measure of how much molecules are vibrating
Calorie
amount of energy needed to raise temperature
What is the specific heat of water?
1 calorie/gram
Sublimation
ice -> water vapor
Depoisition
water vapor -> ice
Salinity
the amount of salt in seawater
What is the average salinity?
3.5%
Density
the weight of a stubstance
When salinity increases, density...
increases
When temperature decreases, density...
increases
Climatic Influence of Sublimation and Deposition
It cools down tropical areas and warms up cold areas
Hotspot
an area where the magma is hotter than the surrounding magma that it create volcanoes
Pressure
increases by 1 atm every 10 meters
Attenuation
The absorption of light as it passes through water
Ocean Basins Diagram
Surface Zone
the warm, top layer of ocean water
Pycnocline
a layer of water in which there is a rapid change of density with depth
Deep Zone
Level of the ocean in which no light penetrates, bottom of ocean
convergent boundary
A plate boundary where two plates move toward each other.
transform boundary
A plate boundary where two plates move past each other in opposite directions
divergent boundary
A plate boundary where two plates move away from each other.
Divergent boundary results in
Ocean ridges
Convergent boundary results in
trenches
Continental Crust
Granite and Permanent
Oceanic Crust
thinner, more dense, younger crust making ocean floor
Latent Heat
extra heat that was absorbed to change phase
Water dissolves
almost anything
Hydrogen Bonding
Bonds between hydrogen atom and oxygen atom of another water molecule