...preventing a true representation of the filtration effectiveness of those media. As a result, the findings suggest that the methods used for filtration should be reevaluated, and future experiments should consider using more standardized setups to ensure that all filtration media are tested under the same conditions. This will help to obtain more accurate data and a clearer understanding of which materials are most effective for purifying polluted water.
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In conclusion, the hypothesis that cotton balls would be the most effective method for filtering polluted water was false due to the data collected during the experiment. The average pH after filtration for cotton balls was 6.48, which is lower than some of the averages such as sand (7.08), marble (6.74), and coffee filter (6.54). Indicating that those filtration media had a better removal of contamination than the filtration media cotton balls. During the experiment, there was one significant issue that may have affected the data, which was tying coffee filters at the neck of a water bottle for extra protection. Some of the filtration media would have passed through the neck because of how tiny it was such as sand and marbles. Because of this extra protection, it may have altered the data by...
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