Aim: The aim of the assignment is to purify water to a level in which is safe to drink. There are many different ways to purify water, I will be using a method that was used to purify water more than fifty years ago. It is rarely used now as well as then but I will test it out and see how it works. Materials: 5 buckets Clean gravel Clean sand Filter paper Chlorine Strainer Procedure: …showed first 75 words of 509 total…

…showed last 75 words of 509 total…of the larger floating particles out of the water. Step 2(ii) this time went well, getting absolutely every remaining bit if dirt out of the water. Finally Step 3 made the water safe to drink. This graph shows the water cleanliness after the second attempt. Conclusion: This experiment went very well, I expected that it would take two or more attempts to get it right, and in the end it turned out better than I expected.