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Cubangbang#129321
Cubangbang's 8thA Ch. 21 Groundwater System Stack #129321
Question | Answer |
---|---|
Groundwater | Water held underground in the soil or in pores and crevices in rock. |
Hydrologic cycle | The path that water takes between the ocean, clouds, precipitation, groundwater, and the ocean again. |
Percolate | Filter gradually through a porous surface or substance. |
Water table | The level below which the ground is saturated with water. |
Zone of aeration | The ground above the water table. |
Porous | Having minute spaces or holes through which liquid or air may pass. |
Impermeable | Not allowing fluid to pass through. |
Perched water table | A thin stratum of impermeable rock located above the water table that traps water. |
Artesian well | The kind of water that has enough pressure to spurt up through thee well. |
Cone of depression | Caused by a well that is over-pumped. |
Recharge zone | An area that resupplies groundwater |
Cave | A large underground chamber, typically of natural origin, in a hillside or cliff. |
Dripstone | Rock deposited by precipitation from dripping water, such as that which forms stalactites and stalagmites. |
Flowstone | Rock deposited as a thin sheet by precipitation from flowing water. |
Stalactite | A tapering structure hanging like an icicle from the roof of a cave formed of calcium salts deposited by dripping water. |
Stalagmite | A mound or tapering column rising from the floor of a cave formed of calcium salts deposited by dripping water and often uniting with a stalactite |
Disappearing stream | A stream that follows the hold in the underlying rock into the cave and disappears from the surface at that spot. |
Appearing stream | Cave streams that can erode a hole in the side of a cave that opens in a hillside. |