On November 13, students of the educational rehabilitation center of the Ivano-Frankivsk City Council visited the Department of Environmental Chemistry and Chemical Education. As part of the week of natural sciences, students had the opportunity to take part in an unusual chemistry lesson. Together with associate professor Lilia Midak and the head of the educational laboratories of the department Iryna Malakhova, the students performed interesting experiments: “pharaoh’s snakes”, “foam fountain”, “smoke without fire”, “invisible ink”, saw a chemical volcano and a chemical clock.