On April 24 and 25, the jubilee, Fifth Symposium of the Doctoral Students of the Faculty of Science was held. The symposium was held in hybrid format, with a smaller number of students attending on-site in the Chemistry Department, while the others participated online. 190 presenters participated with oral presentations and posters. For the first time, the symposium was also opened to students from related courses from Croatia and abroad. The entire event was held in Croatian and English.