How do you make a water filter?
Procedure:
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Watch us in action:
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How does it work?
As the water trickles through the filter, the different layers remove different parts of the dirty water. The cotton removes big clumps of dirt, the gravel removes smaller pieces of dirt and the sand removes tiny pieces of dirt. The coffee filters stop the ingredients from draining through. To make the water drinkable you should add a layer of charcoal, or add chlorine. You can also boil the water for at least one full minute.
About Koen
Koen is a fifth grader in Mrs Morreale's class. He likes to play soccer and PS3. He is learning Japanese and hopes to visit Japan.
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About Rowan
Rowan is a fifth grader in Mr Camarra's. He likes to play the xbox and lacrosse.
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