Waste water purification (M/HS)
Video (02:36 minutes):
Demonstrates and describes the individual purification stages in a sewage plant.
This video is suitable for further study in the higher grade levels.
Information and ideas:
A content package for interactive whiteboards that deals with sewage plants is available on the Siemens Stiftung media portal.
This video is an excerpt from the teaching DVD, „Chemischer Anfangsunterricht II – Stoffe untersuchen, messen".