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Chapter 10

Across
Impermeable layer that is a barrier to groundwater; such as silt, clay, and shale
Cone-shaped or cylindrical dripstone deposit of calcium carbonate that hangs like an icicle from a cave's ceiling
Permeable underground layer through which groundwater flows relatively easily
Process by which precipitation that has fallen on land surfaces enters the ground and becomes groundwater
Region above the water table where materials are moist, but pores contain mostly air
Region below Earth's surface where all the pores of a material are completely filed with groundwater
Process by which water from precipitation and runoff is added to the zone of saturation
Natural discharge of groundwater at Earth's surface where an aquifer and an aquiclude come in contact
Deep hole drilled or dug into the ground to reach a reservoir of groundwater
Difference between the water level in a pumped well and the original water table level
Mound-shaped dripstone deposit of calcium carbonate that forms on a cave's floor beneath a stalactite
Upper boundary of the zone of saturation that rises during wet seasons and drops during dry periods
Down
Ability of a material to let water pass through, is high in material with large, well connected pores and low in material with few pores or small pores
Irregular topography with sinkholes, sinks, and sinking streams caused by groundwater dissolution of limestone
Thermal spring with temperatures higher than that of the human body
Fountain of water that spurts above the land surface when a well taps a deep, confined aquifer containing water under pressure
Explosive hot spring that erupts regularly
Depression in Earth's surface formed when a cave collapses or bedrock is dissolved by acidic rain or moist soil
A natural underground opening connected to Earth's surface, usually formed when groundwater dissolves limestone