eng Science and Education Publishing World Journal of Chemical Education 2375-1657 2025-11-10 13 4 91 97 10.12691/wjce-13-4-1 WJCE20251341 article Dominique Rosenberg dominique.rosenberg@uni-rostock.de 1 Tom Severin Gabriel 1 Maike Busker 2 Sven Gehbardt 2 Chemistry, University Rostock, Rostock, Germany Chemistry, Europe University Flensburg, Flensburg, Germany Hydrogen is becoming increasingly important as a versatile energy source in society and industry across various sectors. It is obtained through the electrolysis of water, in which water is split electrolytically into oxygen and hydrogen. The production of hydrogen through electrolysis is an excellent way to teach students key aspects of modern energy storage and the energy transition in a clear and concise manner. However, simple, safe, and inexpensive experiments are particularly important in school lessons. The model experiment presented here shows how the electrolysis of water can be carried out successfully and safely using readily available everyday materials. Both technical fundamentals and safety-related aspects are taken into account. https://pubs.sciepub.com/wjce/13/4/1/wjce-13-4-1.pdf Hydrogen Electrolysis Energy supply Model tests School experiments