The first author, a high-school student, together with the second author, a project supervisor, presents a simple model of the solidification of liquid wax poured into a cylindrical vessel. The results obtained with the model are tested in a series of experiments carried out inside cylindrical containers of different dimensions. There is a good agreement achieved between theory and experiment. The main goal of this project is to identify and investigate a physical phenomenon which would test and enhance students‘ creativity., Karolína Rezková, Jana Musilová., and Obsahuje seznam literatury