Geography : Rivers - where domestic water comes from

We talked about how we used water in the home and how convenient it
was to simply turn on the tap.
We wondered how the water got into the tap and where it went once we
had finished with it
Swe talked about he function of
Reservoirs
Treatment plants filtering and adding chlorine
The mains water system
The sewage system
The sewage treatment plant and how clean water is returned to the rivers
We also talked about the consequences of drinking tainted water and
what we would have to do if there was no mains system
We constructed a diagram of the water supply network and sewage
network on the whiteboard