On April 5, Candidate of Chemical Sciences, Associate Professor of the Department of Natural Sciences, Sh.A.Muzdybayeva held an open lesson. in the discipline "Physical and colloidal chemistry" for 2nd year students of specialties: BT, BIO, CCI, HTOV according to the approved schedule for the second semester of the 2021-2022 academic year. The topic of the lecture is "The phenomenon of wetting. Thermodynamic wetting conditions. Liquid spreading". During the lectures, the following interactive forms were used by the lecturer, such as the "round table" method, "brainstorming" and "debate":