AbstractOliva

Human health is incredibly important. To live people need shelter, food, and clean water without these things disease can occur. This project tested how long it took dirty water to pass through a homemade sand filter that had sand at the bottom of the filter every time it was tested also every bottle had mulch, dirt, bark, gravel, and either a coffee filter or a cotton ball below the sand so either the coffee filter or the cotton ball would be the last thing the water filters through. The hypothesis was that the smaller the size the particle in a sand filter the less turbidity there would be in filtered water. The experiment at the end suggested that the cotton ball was way to filter the water because when the water filtered through the cotton ball the water ended up the clearest then the other three tests.