Chapter1 Introduction1.1 origins and importanceThe problem is a shortage of fresh water in the community who live in coastal regions and Islands areas, where there are no natural water sources used in enough quantity. Support of the local population to consume because of the fresh water on the Earth is our only 37 million not accounted erased. km to 3 per cent of all water on Earth c. 1385 million to remove more than the km. 97 percent is salt water in the ocean and the ocean from the above text is based on the quantity of fresh water and sea water. Cause I know that human beings have no shortage of fresh water is to solve problems with the use of fresh water from sea water, which is mainly imported from overseas must have high leverage, and a high amount of power is required. For this reason, group science project, so think a distillation of sea water into fresh water is coming up. To help reduce the problem of shortage of fresh water, and the rest of the material used is taken as an invention, in order to reduce costs and to help reduce the population of fresh water shortage problem as well.1.2 objectives1.2.1 to be very salty water up to a water supply and can be used to feed animals.1.2.2 to design and build a sea water distillation1.2.3 so that students have a variety of thinking skills, such as creativity, free application.And integrated thinking1.2.4 in order to increase the quantity of fresh water is contained at least as much. 1.3 sommutithanDistillation and condensation of the water vapour can cause sea water becomes fresh water. 1.4 variable.The variables are: sea water.Variable: fresh waterThe control variable: the quantity of sea water.
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