Curated OER
Problems with Rivers
Students explore the PNI model. In this river pollution activity, students use the PNI (positive-negative-interesting) problem solving model to analyze 5 scenarios.
Curated OER
River Pollution - Nutrient Cycle & Wetlands
In this nutrient cycle worksheet, students add arrows to the diagram and label the picture with the four different stages. Students also answer questions about nutrient loss and pollution.