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Old 02-12-2006, 06:42 AM
thebuzz thebuzz is offline
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Default 7 grade class project Water Purification using 2 liter bottle

What inorganic and organic materials would make the best filtering agents for 500 ml of dirty water?

Last edited by thebuzz; 02-12-2006 at 06:48 AM.. Reason: better title
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