Post viewing questions for assessment and suggested extension activities follow. Introduce the topic with a discussion on pollution. Create a list of known chemical toxins to humans. Be sure to lead discussion to identification of mercury and its toxic affects on humans. Brainstorm possible sources of chemical pollutants in Arkansas, specifically, mercury.
Discussion needs to result in the identification of lakes and stream waters where pollution occurs.
Present a map of Arkansas and ask for location of the Saline and Ouachita Rivers and Felsenthal Wildlife Refuge. Inquire as to students' knowledge of publicized warnings regarding the consumption of fish from these regional waters.