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Sabtu, 20 Oktober 2012

IPA: WATER CYCLE

The water cycle or hydrologic cycle is the circulation of water that never stops from the atmosphere to the earth and back to the atmosphere through condensation, precipitation, evaporation and transpiration.Warming sea water by sunlight is a key hydrologic cycle process can be run continuously. Air berevaporasi, then falls as precipitation in the form of rain, snow, hail, sleet and snow (sleet), drizzle or fog.On the way to the earth some precipitation may berevaporasi back up or fell were later intercepted by plants before it reaches the ground. Upon reaching the ground, the hydrological cycle is continuously moving in three different ways
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Evaporation / transpiration - water that is in the sea, on land, in rivers, on plants, and so on. then will evaporate into the air (atmosphere) and then it will be a cloud. In the saturated state of water vapor (clouds) it would be water spots which will further fall (precipitation) in the form of rain, snow, ice.

    
Infiltration / Percolation into the ground - water moves into the soil through cracks and pores of the soil and rock into the groundwater. Water can move due to capillary action or water can move vertically or horizontally below the ground surface to the water re-entering the surface water system.

    
Surface Water - water moves over the surface of the land adjacent to the main stream and lake; increasingly sloping land and fewer pores of the soil, the greater the runoff. Surface flow can be seen usually in urban areas. The rivers join each other and form a major river that carries across the water surface around the watershed to the sea.Surface water, either flowing or stagnant (lakes, reservoirs, marshes), and some subsurface water will be collected and flows to form the river and ended at the sea. Process water trip on the mainland occurred in the hydrologic cycle components that make up the watershed system (DAS). Amount of water in the world as a whole is relatively fixed, the change is a manifestation

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