2The Water Cycle Water is recycled through the water cycle. A continuous process by which water moves through the living and nonliving parts of the environment.cycle has no real beginning or endWater EvaporatesEvaporation is the process by which molecules at the surface of a liquid absorb enough energy to change to the gaseous state.
3The Water CycleThe water cycle is the continuous process by which water moves through the environment. The sun is the source of energy that drives the water cycle
51) Condensation: the process in which water vapor (a gas) in the air turns into liquid water. Condensing water forms clouds in the sky. Water drops that form on the outside of a glass of icy water are condensed water. 2) Accumulation: the process in which water pools in large bodies (like oceans, seas and lakes). 3) Transpiration: the process in which some water within plants evaporates into the atmosphere. Water is first absorbed bt the plant's roots, then later exits by evaporating through the pores in the plant. 4) Surface Runoff: rain, snow melt, or other water that flows in surface streams, rivers, or canals. 5) Evaporation: the process in which liquid water becomes water vapor (a gas). Water vaporizes from the surfaces of oceans and lakes, from the surface of the land, and from melts in snow fields. 6) Subsurface Runoff: rain, snow melt, or other water that flows in underground streams, drains or sewers. 7) Precipitation: the process in which water (in the form of rain, snow, sleet or hail) falls from clouds in the sky.
10Groundwater Underground Layers water trickles down between particles of soil and through cracks and spaces in layers of rock.Pores - different-sized spaces between rocksPermeable - materials that allow water to easily pass throughSandGravelImpermeable - material that does not allow water to easily pass throughClayGraniteGroundwaterRain fall and snow melt and run off in streams or soak into the ground The water that is soaking into the ground is know as goundwater.
11GroundwaterSaturated zone - area of permeable rock or soil that is totally filled, or saturated, with water.Water table - top of the saturated zonethe depth of the water table tells you how deep you must dig to reach groundwaterUnsaturated zone - soil above the water table
12Any underground layer of rock or sediment that holds water is called an aquifer. Ranges in sizeWater is actually in motionSpeed depends uponSteep of aquiferHow permeable the rocks areAquifers
13Bringing Groundwater to the Surface Groundwater is pumped up to the surface through wells like the one near the center of the diagram.At the right, pressure causes water to spurt from an artesian well. Where an aquifer meets the ground surface, at the left, a spring may form.Springs - where the water table meets the ground surfaceWells - obtains groundwater from an aquifer by drilling below the water table.Recharge - water that enters the aquifer from the surfaceArtesian well - water rises because of pressure within the aquifer