The cumulative effects of human activity (non-point source pollution) on the watershed is the focus of this interdisciplinary instructional activity on pollution.
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- Rather than delivering the background information in lecture format, have groups research the different pollutants and prepare a presentation that shows how these sources affect the watershed
- For classrooms outside the San Francisco Bay area, the lesson would need to be adapted to the local watershed
- Discussion questions and a list of extension activities are provided
- Most of the background information is presented in lecture format