Global Water Distributiion Crossword Puzzle

QUESTIONS LIST:

• wetlands : areas where water covers the soil, or is present either at or near the surface of the soil all year or during periods of the year
• groundwater seepage : when excessive amounts of groundwater push to the surface as a spring or an area of saturated soil
• soil moisture : the amount of water found in the soil
• discharge zone : the zone where water originating from an aquifer flows out into water courses such as lakes, rivers and wetlands
• natural recharge : water that moves from the land surface or unsaturated zone into an aquifer. where porous rock at the surface allows water to seep into an aquifer
• permeable : a material that allows liquid to pass through it (sandstone is a permeable rock type)
• water table : an underground boundary between the soil surface and the area where ground water saturates the in the rocks
• confined aquifer : an aquifer below the land surface that is found between layers of impermeable material
• aquitard : a zone within earth that restricts the flow of groundwater from one aquifer to another; comprised of either clay or layers of non-porous rock
• artesian well : underground water that is under pressure. when punctured by a well or borehole the water will rise to the surface
• unconfined aquifer : an aquifer in which the water table is at atmospheric pressure. there is no impermeable layer between the water table and the ground surface
• perched aquifer : an aquifer that occurs above a regional water-table. it is usually a relatively small body of water that lies above the large aquifer due to an impermeable rock layer blocking the downward flow of water
• ice sheets : the mass of glacial land ice that covers the polar regions
• ice caps : found in mountainous areas such as the himalayas and andes