The manure is stockpiled and spread over the adjacent agricultural land. It is rumored that some disease causing organisms from the feedlot seep into the river. The town of Lakeshore is located in an agricultural area. It is a large exporter of alfalfa hay. Commercial fertilizers are used and irrigation is done by a method called flood irrigation.
Some farms exist above Lakeshore and some are located below the town.
Ensure inquiry Tell the students that because water is so necessary to all life on this planet, it is very important that they are aware of personal and industrial uses and misuses of the water system. They will become familiar with water testing methods, and use those skills as scientists in an investigation. Allow students the latitude to pursue a variety of problem solving methods. Promote the students as scientists. The teacher should be a facilitator of this activity.