In my STEAM, Water class we, as a class, mainly focused on filtration. In class we built our own small, sort of knockoff water filters. This included using plastic cups and coffee filters or using sand to relate to groundwater filtration. We learned about the pH of the water which shows whether the water is alkaline (basic) or acidic. This branched out to working on logarithms which we learned are the inverse of exponents. By working with logarithms I discovered how that and pH are so closely related. You can use the pH to find how many hydrogen plus ions there are in the water or its concentration. By doing the reverse, you know the concentration and are trying to solve for the pH. Since we talked about hydrogen ions we had to recover chemistry. Our field experience of this part of the unit was adventuring to the Jardine Water Filtration plant in Chicago. In our tour of the plant, the workers extract water from Lake Michigan, filter it, and that is then transported across the networ...