Industrial Water Filters Science Project- Water Filteration Presentation?

Science Project- Water Filteration Presentation? - industrial water filters

Excellent in the category:
Device for water systems, the filter you build your own water present in the class. How to build, and what appears is up to you. After the building is filtered, you will be presented to the class and explain how it works. In his presentation, the following information: the materials he uses, why are you wearing, how they met and why they decided to replace the filter in the way that he did not build.
Dirty water and repulsive through their filters. It purifies the water?
Your filter must meet the following criteria, can hold between 250-500ml water. He suggested that tanks for filtering water, a / a plastic bottle. Your filter will be judged by the clarity of the water too. (not manufactured industrial products. You can cut sponges or other materials, but can not simply the material in a way, without setting yourself .. if appropriate)