Tuesday 5 March 2013

Child's Question


Child's Question: Where does the water in our taps come from?

The children can see water coming out of the tap but where did it come from? "Pipes" many of them knew. We had a look and indeed there are pipes connected to the tap.
Looking at the pipes
Where does the water in the pipes come from? "The stream" thought Julia. We watched a video explaining the water treatment process http://www.youtube.com/watch?v=tuYB8nMFxQA. Esme heard a familiar word - chlorine - "You have to wash it off your body." (after swimming) Chlorine is used to killed germs and bacteria and helps make our water clean to drink.

To watch the filtration system in action we built one to show the process.
First a layer of cotton, then a layer of sand

Then a layer of gravel
Making dirty water
















Pour in the dirty water

Clean water comes out the bottom!

After group time I observed Sofia explaining the filtration system to a child from another group - great communicator Sofia!

2 comments:

  1. Thanks for sharing Wendy. What a wonderful filtration system the children put in place. I'm impressed!

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  2. They were thrilled and wanted to add chlorine to our filtered water so they could drink it, unfortunately . . . or fortunately . . . we didn't have any chlorine :)

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