Storms can be significant events affecting turbidity readings in a lake. A portion of the rain that falls on the land in a watershed washes into the lake as runoff. The runoff carries inorganic and organic materials, including soil, humus, chemicals, nutrients, and pollutants, into the lake. In this lesson you will work in a cooperative group to explore how rain storms, watershed characteristics, and landuse affect turbidity.

Each member of your group will have an assigned role for this lesson. Number off, one through four, then each you should get and read a copy of the handout that explains your role.

Refer to your handout for specific lesson components and directions.

1. Reporter Assignment
   
2. Meteorologist Assignment
   
3. Landuse Planner Assignment
   
4. Water Quality Analyst Assignment