For my first experiment, my hypothesis was "If oil is applied to groundwater, then the groundwater will be contaminated and oil will be present." If vinegar is applied to groundwater, it will have the least effect on the water, showing good visibility. If laundry detergent is applied to groundwater, it will be cloudier than oil and vinegar, especially if agitated. For my second experiment, my hypothesis was "If my filtration technique to remove contaminants is to separate 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 tap water comes from a city water supply and has not been completely filtered unlike bottled water, this would be the most