Researchers from GeoZS once again participated in Znanstival. The event, organized by the House of Experiments, is designed to foster curiosity and creativity and to promote education and science. At the «Secrets of Rocks” workshop, curious visitors became geological detectives: using an educational kit and the KamenCheck mobile app, they solved interactive tasks, closely observed and compared real rock and mineral samples with visual materials. They searched for fossils and discovered what these remnants of the past tell us about the Earth and the formation of rocks.”