The "water" challenge: Water is one of the most precious resources on earth. Interdisciplinary knowledge is necessary so that as many people as possible receive it in sufficient quantity and quality and so that it is suitable for the various purposes for which it is used. In this course, students will be trained to use this resource efficiently, economically, and in a future-oriented manner. Students will understand the chemistry of water, be able to analyze it, know the life it contains, and know about the cycles. They are familiar with a water supply and wastewater treatment and help to use the resource water optimally and to protect it sustainably.