#WildEastDevon Outdoor Activity: Have a go at creating a water filter
You could use a funnel if you have one or improvise with an old plastic bottle cut in half. You could make it a competition or Investigate how well different materials remove the particles of soil from the water. Does it make a difference how thick the layers of materials are? Can you get your water cleaner by filtering it twice? Can some particles be removed simply by allowing the mixture to settle? Would the water be safe to drink? Could there be impurities that we can’t see (e.g. microbes and chemicals)? Find out how these can be removed...

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