COUNTY SLIGO SEO CONTAE SHLIGIGH 2002 A.D.

 

EXPERIMENT NO. 10: PURIFYING WATER When rain falls, some seeps down through the ground where it is absorbed by the porous rocks and sand. If we dig a well we find this water and it is often very clear. As it moved through the sand and porous rock, it lost any clay it contained. (Save this page, edit the Date and the Laboratory entries, and  print it out. Then do the experiment.)

Laboratory: Stokane National School Date: 27th March 2002 Objective: To investigate if sand filters water Apparatus: Large plastic bottle, small bowl, milk, grass, clay, sand and stones Method: Make a small hole near the base of the bottle with a nail. Stand the bottle in a bowl. Almost fill the bottle with sand, place clay and grass on top and pour some water on top of the grass. As the water seeps downwards it is firstly soiled by the clay, but is cleansed by the sand. Mix water with milk and try the effect.

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Water Treatment in Ireland Water in Chicago's Community

REPORT We bored a hole near the base of a 2-litre plastic bottle and we almost filled the bottle with sand. We were trying to trace the path of rain-water as it makes its way through the ground into a well. We could see this path at the seashore in Enniscrone. The cliff was mainly rock, above this was sand and clay and on top some grass.  The rain-water falls on the grass first, then onto clay and then onto sand and rock underneath this before it ends up in a well. When the water came out the hole into the bowl it was clean, just like we find in a well. CONCLUSION Clay is removed from water as it passes through beds of sand.

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