Older audiences will find interest in graphing and integrating math and chemistry into this project. A watershed is an area of land from which all the water drains to the same location such as a stream, pond, lake, river, wetland, or estuary. A watershed can be large, like the Mississippi River drainage basin, or very small, such as the 40 acres that drain to a farm pond. Large watersheds are often called basins and contain many smaller watersheds. Nonpoint source pollution has many different sources, usually associated with rainfall and snowmelt runoff moving over and through the ground, carrying natural and human-made pollutants into lakes, rivers, streams, wetlands, estuaries, and underground water.
Pollutants accumulate in watersheds as a result of various practices and natural events.
These pollutants, while sometimes inevitable, drastically alter the state of the ecosystem. If we can determine the type of pollutant, then we can not only classify the source of the pollutant, but take preventative measures to alleviate any further contamination. Divide the candy amongst the baggies. You may either have 1 baggie per student or 1 baggie per group of students. You should have about 30 pieces of candy per baggie.