The purpose of this experiment was to understand how water is purified and the process that it goes thru. To find out how water is purified you will need 100 ml of foul water and you also need a funnel to set on the clay triangle support that goes the ring of the stand. You will also need a rubber tube that will connect to the funnel, and you must pinch it with your fingers to keep the water from flowing thru. Before you pour the water in the funnel you must stir it.
             Exactly at the moment you stop stirring it you will pour half of the water into the funnel, and tap the funnel so that the layers may separate. Once the layers have separated unpinch the lightly and let about half of the water flow into a clean beaker and label it beaker 1. Then you grab another clean beaker and drain the rest of the water into it and label it beaker 2. Pinch the tube and repeat the same steps again with the rest of the foul water and make observations and record it into your data table.
             Now you need to get a plastic cup and make holes on the bottom and put layers of gravel and sand in the cup. Set this cup on top of a clean beaker and pour the water from beaker 1 into the plastic cup and let the water filter. You can now get rid of the sand and gravel but whatever you do don't dump it down your sink and make observations and record the data from the purified water.
             You will now need some filter paper and fold it as instructed to fit in the funnel and this will act as a filter. Place the triangle thing on the on the ring of the holder and put the filter in the funnel. Put a clean beaker under the funnel and the funnel must be about 2-3 cm over the beaker. Put a teaspoon of charcoal in the purified water and pour the water into a 125 ml or a 250 ml Flask. Swirl the mixture for several seconds and pour it into the filter. Pour your water into a cylinder and make your observations and record your data....