For my first experiment, my hypothesis was: “If oil is applied to groundwater, the groundwater will be contaminated and oil will be present. If vinegar were applied to groundwater, it would have the least effect on the water, showing clear visibility. If laundry detergent were applied to groundwater, groundwater would be cloudier than oil and vinegar, especially when mixed.” For my second experiment my hypothesis was “If my filtration technique for removing contaminants was to separate the contaminated water and over time after treatment the water would become clean. For my third and final experiment my hypothesis was: “As a consumer, who primarily drinks Dasani bottled water, I believe this would be the least contaminated water. Since the tap water comes from a city water supply and has not been fully filtered, unlike bottled water, it would be the most suitable solution.