.On Thursday, February 6, 2025, the Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, Yogyakarta State University (UNY), held a chemistry education webinar attended by over 150 participants, including lecturers, chemistry teachers, and students. The event was held in a hybrid format, with offline sessions on the UNY campus and online sessions via Zoom, to provide opportunities for participants from various locations to participate. The webinar opened with remarks from the Head of the Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, UNY, Dr. Retno Arianingrum, M.Si., who emphasized the importance of broadening knowledge in chemistry education to address the latest developments in science and technology. Also speaking were the Head of the Intellectual Property Rights (HKI), Prof. Riyanto, and the Dean of the Faculty of Mathematics and Natural Sciences, UNY, Prof. Dr. Dadan Rosana, M.Si., who expressed their support for the webinar, which was considered a crucial step in enriching the academic and professional understanding of the participants. The event featured two keynote speakers, experts in their fields: Prof. Muammer Calik, Ph.D., from Trabzon University, Turkey, and Prof. Dr. The webinar was led by Prof. Ilyas bin Md Isa from Sultan Idris University of Education, Malaysia.

The first speaker, Prof. Muammer, presented "Socio-scientific Issues Focused on Environmental Dimensions," which explored social and scientific issues related to the environment and how science can contribute to solving these challenges. The second speaker, Prof. Ilyas, presented "Electrochemistry for Environmental Analysis," which discussed the application of electrochemistry in environmental analysis, particularly in measuring pollutants and hazardous components that affect ecosystems. Both topics are highly relevant to the development of chemistry, which focuses not only on theory but also on its application in maintaining environmental sustainability. This webinar not only presented material from the speakers but also provided an opportunity for participants to interact through a question-and-answer session moderated by Ms. Anggiyani Ratnaningtyas, Ph.D. Participants demonstrated great enthusiasm, asking a variety of questions related to the material discussed, ranging from the application of chemical concepts in the real world to the challenges faced in environmental research. This session also provides an opportunity for speakers to provide in-depth explanations and share their experiences in relevant current research. Through this activity, participants are expected to broaden their knowledge and insights and apply what they have learned to future chemistry education and research practices.