Our project aims to raise awareness about the environmental harm caused by waste oils and to minimize human intervention in the ecological balance by recycling household waste oils, which is essential for the functioning and continuity of natural systems. For this purpose, research was conducted on waste management. A brainstorming session was held with the research team about the recycling of waste oils at home. Our project was planned and implemented in two phases. In the first phase, we planned how to raise awareness in our community about the damage waste oils cause to ecosystems and how to collect them. In the second phase, it was decided to use waste oils for soap making as a means of recycling in households. A campaign was organized at our school where students who brought in one liter of waste oil were rewarded with a chocolate bar, resulting in the collection of 100 liters of waste oil. The collected 100 liters of waste oil were given to a recycling facility in exchange for 20 liters of degreaser and 20 liters of dishwashing detergent. We set aside two liters of waste oil for soap making. The materials required for soap making were: 2 liters of waste cooking oil, 750 grams of pure hot (40°C) water, and 280 grams of caustic soda (NaOH). The caustic soda and pure hot water were mixed using gloves, protective goggles, and a mask. The lab window was kept open for ventilation during the process. The mixture was left to cool to room temperature for 20 minutes. The 2 liters of strained waste oil were added to the room-temperature caustic soda and water mixture. One tablespoon of lavender oil was added. The mixture was stirred continuously for 30 minutes until it reached a gel-like consistency. Once it thickened, it was poured into a mold. The mold was covered with plastic wrap and a towel and left overnight. The next day, the soap was removed from the towel and plastic wrap and left to cure in a cool, dark place for six weeks to complete the saponification process. At the end of the six weeks, the pH of the soap was measured with pH paper, and the pH value was found to be 10. Considering that the pH of drinking water is 8, vinegar is 3, and our skin is 5.5, we obtained a mildly alkaline soap that is compatible with the skin. Thus, we successfully recycled waste oil from the kitchen by making soap.