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Water and Oceanography
Layers of the Ocean, Porosity, Permeability, Aquifers, Water Pollution
28
Science
10th Grade
05/23/2010

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Term
Oceanography
Definition
The scientific study of the ocean using chemistry, biology, physics, geology, and other sciences. Oceans cover more than 70% of earth's surface.
Term
Salinity
Definition
a measure of the dissolved salts in the water
varies from place to place
Term
Water Mass
Definition
a body of water with distinct properties based on where it originates
Term
Phytoplankton
Definition
single celled protists (do photosynthesis) PRIMARY ENERGY SOURCE
Term
Zooplankton
Definition
small microscopic animals that eat phytoplankton or smaller zoo plankton
Term
Echo Sounding
Definition
Sonar is used to find the distance to the ocean floor
Term
Core Sampling
Definition
Samples using a long hollow instrument removes a cylinder of material
Term
Satellites
Definition
Use radar that detect differences in ocean surface levels
Term
Continental Margin
Definition
The underwater portion of the continental crust
Term
Continental shelf
Definition
extends from the shore line.
Term
Continental Slope
Definition
very steep drop in ocean depth
Term
Continental rise
Definition
gradual slope to the ocean floor
Term
Ocean Basin
Definition
(floor)
Term
Abyssal plain
Definition
the flattest of all earth's surface areas
Term
Abyssal hills
Definition
small rolling hills near ocean ridge systems
Term
The Hydrologic Cycle
Definition
the natural circulation of water from ocean to atmosphere to ground, back to ocean.
Term
Ground Water
Definition
Subsurface water in teh zone of saturation
98.5% of fresh water is below the earth's surface
Term
Porosity
Definition
the volume of open space in a soil or rock sample
Term
Permeability
Definition
the ability of a material to transmit fluid
Term
water table
Definition
all pore spaces below this area are filled with water (saturated)
Term
Aquifer
Definition
any water-bearing underground layer where water can flow
Term
artesian system
Definition
water flows out of the aquifer to the surface, due to pressure from above (naturally-spring, drilled-well)
Term
Caves
Definition
caused by running underground water on rock
Term
Sinkholes
Definition
funnel shaped holes where caves have collapsed
Term
Leachate
Definition
water that has ran through contaminated areas picking soluble substances
1. factories
2. sewage
3. chemical spills
Term
Glaciers
Definition
a large mass of ice formed by the compaction and recrystallization of snow, moving down slope under its own weight.
powerful agents of erosion
Term
Sublimate
Definition
turns directly to water vapor before becoming water.
Term
Ablation
Definition
the amount of snow mass a glacier looses per year
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