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Zone of Saturation

Zone of Aeration

Groundwater

Aquifer

Water Table

Geysers

Porosity

Infiltrate

Permeable Surfaces

Hot Springs

Fumaroles

Artesian Well

Impermeable Surfaces

Percolate

hot springs that intermittently shoot streams of steam and hot water into the air

the level below which the ground is saturated with water

water held underground in the soil or in pores and crevices in rock

a layer of permeable rock with high porosity that lets water move freely

a well that reaches a confined aquifer; the water flows due to pressure

gaps between sediments are filled with both air and water

groundwater heated from beneath the Earth’s surface

(also known as porous or pervious surfaces) allow water to percolate into the soil to filter out pollutants and recharge the water table

where recent volcanic eruptions have occurred, groundwater released as steam from fissures in the ground (geothermal energy source)

filter gradually through a porous surface or substance

amount of open space in pores between sediments that can hold water or air

permeate (something) by filtration

solid surfaces that don't allow water to penetrate, forcing it to run off

gaps between sediments are filled with water