Vegetable oil is a residue of high risk to the environment, causing serious damage when dumped in inappropriate places and incorrectly. For example, when released into the sewer system leads to clogging of pipes, rivers in addition to contamination, can cause destruction of living beings therein, while discarding the waterproofs the soil and contributes to the greenhouse effect. The need for research on alterna- tive recycling and selective collection is a sustainable practice, to decrease the damage to the environment. Thus, the implementation of the Project “Green Soap” aimed to educate the school community, the need to reuse cooking oil, as an alternative to mitigate the impacts of this, when disposed of improperly in the environment. Was applied to a State School Public Network Porto Velho, Rondônia, covering the classes of regular high school. The activities were held during biology classes, and divided into two stages, the first of a theoretical and a second practice, this has made the production of ecological soap being. It is concluded that the development of differentiated teaching practices helps to widen the knowledge of both the school community, as educators, the main point the integration of theory and practice in favor of environmental awareness and preservation. ; O óleo vegetal usado é um resíduo de alto risco para o meio ambiente, causando sérios prejuízos quando despejados em lugares impróprios e de forma incorreta. Por exemplo, quando lançado na rede de esgoto leva a obstrução das tubulações, nos rios além da contaminação, pode causar destruição dos seres vivos ali existentes, enquanto que o descarte no solo o impermeabiliza e contribui para o efeito estufa. A necessidade de pesquisas com alternativas de reciclagem e coleta seletiva é uma prática sustentável, para diminuir os prejuízos ao meio ambiente. Desta forma, a aplicação do Projeto "Sabão Ecológico" teve por objetivo conscientizar a comunidade escolar, da necessidade de reutilização do óleo de cozinha, como alternativa de amenizar os ...