The workshop is intended for students in the lower grades of elementary school
Through a PowerPoint presentation, children are educated about the importance of water for life on Earth, they learn which areas are rich in water and which are lacking, and what are the consequences of a lack of water, especially drinking water.
After the lecture, the children are divided into groups, which have the task of making a water filter. The material for making the filter includes fine and coarse sand, cotton, mesh, rubber, charcoal, and a plastic bottle. In this way, the children are encouraged to think, discuss, and work as a team. After that, the filters are tested by running dirty water through them. The best filter is the one through which the purest water flows.
Approximate duration of the workshop: 45 – 60 minutes
Recommended number of students in the group: 25
