Instructional Video
Bozeman Science

Bozeman Science: Water Pollution

9th - 10th
Paul Andersen explains how water quality can be degraded by pollutants. Wastewater is the main source of water pollution and can be measured using the BOD (biochemical oxygen demand). Dead zones, cultural eutrophication, disease, and...
Instructional Video
NOAA

Noaa: Ocean Facts: What Is Eutrophication?

9th - 10th
Explains what eutrophication is and the extent of the problem in the United States. Discusses the causes, impact, and what can be done to combat it. The video provides a short overview of the topic and is accompanied by a transcript. [1:04]