Monday, 12 September 2016
Thursday, 1 September 2016
THE WATER CYCLE
The water cycle is a process that water goes through between land, sea and air; the water is recycled during this process. There are five key stages of the water cycle: evaporation, condensation, precipitation, runoff and groundwater.
One of the key stages in the water cycle is evaporation, evaporation is when the sun heats the water in the ocean,lakes and rivers around the world then the water turns into water vapour (gas). The process of evaporation is invisible to the human eye, also On warmer days evaporation happens faster, because the sun heats the water more. The water changes state from a liquid to a gas.Once the water has turned into vapour it turns into condensation.
Condensation is when the water vapour condenses into little water droplets into clouds which makes precipitation. The water vapour can't stay as a gas in the cold air so it condenses into water droplets, then it makes lots of different types of precipitation, e.g: rain,snow,hail and sleet. The water vapour goes from a gas to a liquid. The next step in the process is runoff/ ground water.
Runoff is the draining away of water from the surface of a building, land or a structure. When the ground-water hits something like clay (that it can't go through) the water builds up and eventually it goes up through the ground and creates a spring of water, but only some water soaks through the ground. Most water flows over land down hill to a lake, ocean or river.
In conclusion there are five main stages to the water cycle, the water is recycled during the process of the water cycle. Also the water cycle is crucial to our survival.
Posted by Unknown at 9:28 am