How to make muddy water clean!!! June 19, 2008
Posted by Law Middle in : Uncategorized , trackbackWe first had to make a filter out of half of a 2 litre bottle with cotton wool,pebbles,gravel and sand. Each group had to get a jug of muddy water and we had to pour it into our filters to see whose group was the best. Most of them didn’t work because when we used the sand it went into the water because the sand was so small it just fell through to the water. We are lucky that we don’t have to clean our water every day.
By Ethan & Campbell
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