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Earth Science Chapter 14
Vocabulary for Chapter 14
18
Science
9th Grade
10/08/2009

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Term
Aquifer
Definition
permeable layer of rock and sediment that stores and carries gound water in enough water to fill wells
Term
Artesian Formation
Definition
arrangement of a permeable layer of rock sandwhich between 2 layers of impermeable rock
Term
Capillary Action
Definition
gound water rises because water molecules are attracted to soil particles
Term
Cavern
Definition
large underground chamber
Term
Deficit
Definition
stored soil water is gone and the need for moisture is greater than the rainfall
Term
Geyser
Definition
a hot spring that intermittently shoots columns of hot water and steam into the air
Term
Groundwater
Definition
water that is stored in the ground
Term
Karst Topography
Definition
topography characterized by sinkholes, sinkhole ponds, lost rivers, and underground drainage, forms in area with bedrock made of calcite, dolomite, or other minerals taht dissolve easily
Term
Mineral Deposit
Definition
minerals left behind when groundwater that contains minerals cools or evaporates
Term
Ordinary Well
Definition
a well dug or drilled down to the water table
Term
Permeability
Definition
rate in which water or other liquids passes through the pore spaces of rock
Term
Porosity
Definition
percent of a material's volume that is pore space
Term
Recharge
Definition
refilling of soil water supply at times when plants need little moisture
Term
Spring
Definition
a small stream of water whose source is groundwater that has reached the surface
Term
Surplus
Definition
condition of having rainfall greater than the need for moisture when the soil is already saturated
Term
Usage
Definition
condition where plants draw water from the soil at times when the need for moisture is greater than the rainfall
Term
Water Budget
Definition
the income and spending of water in an region
Term
Water Table
Definition
surface below which the ground is saturated with water
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