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Cards In This Set
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True or False: A large amount of water is flowing underground and is not visible?
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True
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What is the water located within the rocks below the earth's surface called?
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Groundwater
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What does groundwater play and important rule in?
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Erosion adn Deposition
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How does surface water seep underground into teh soil?
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Percolation adn Inflation
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What are the two distinct zones surface water travels through?
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1. Zone of Aeration (upper zone)
2. Zone of Saturation (Lower zone) > Groundwater location
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The boundary between the zone of aeration and teh zone of saturation is known as the what?
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Water Table --- Which rises during the wet seasons and falls during the dry seasons
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What is an auquifer?
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A body of rock or sediment storing groundwater adn allowing the flow of groundwater is called an aquifer.
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What are the two types of aquifers?
Explain each one.
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1. Unconfined - Permeable rock unit replenished (recharged) directly by rainfall and surface water infiltrating/percolation down through and whose upper surface is the water table
2. Confined - "Artesian"; permeable rock units, usually deeper than unconfined aquifers and between two impermeable layers, limiting groundwater movement into and out of it.
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What is porosity?
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The percentage of the total volume of a rock or sediment consisting of open spaces is known as porosity.
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What is permeability?
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The ability of rock or sediment to let fluids pass through pores, or open spaces is known as permeability.
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What is the recharge zone?
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The ground surface where water enters adn aquifer is called the recharge zone. (The size of this zone depends on the permeability of teh rock at it's surface)
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If the water table reaches teh earth's surface, water will flow out from the ground and form a _______?
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Spring --- important source of drinking water
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In areas where the water table is higher than the earth's surface, a _____ will form?
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Lake
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In a confined (artesian) aquifer what is the top layer of impermeable rock called?
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Cap Rock
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What is a spring whose water flows from a crack in the cap rock of the confined or artesian, aquifer?
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Artesian Spring
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