The research on soil, water and personal and air pollution was carried out. The students analyzed the received data and compared them with each other. These classes allowed students to understand better the whole world around them and connect theoretical facts with what exists in reality. Thus, the level of natural science knowledge of students has increased. They know about environmental pollution, they understand that we are part of nature. By completing this task, students learned to evaluate critically the situation, develop aesthetic awareness, respect for the environment, and take responsibility for protecting the environment.