Week 4 STEAM – Water cycle

My life as a raindrop:

Firstly I flow through the grate in the dam. The eels and fish that live in the dam can’t get through this. When I enter the treatment plant aluminium sulphate is added to us. This makes the dirt stick together so that it can be removed. When the dirt particles stick together they form a big particle called a floc. The floc and sludge then go to landfill. Then we enter the sand filter where floc, giardia and cryptosporidium are trapped. Further down the pipe chlorine is added to kill the bacteria in us that could make people terribly sick. Lastly fluoride is added to me, so is lime. This lime is added to reduce my acidity.

 

This is how I get to your house!: