Water quality is a global concern—less than 1 percent of all water on earth is
suitable for humans—and it is a daily struggle for people in developing countries where water is
frequently contaminated. You can make a difference by leading a presentation that discusses the importance
of watersheds and the environmental, societal, and economic tradeoffs faced when making decisions that
affect water quality and quantity. After the presentation, a team activity allows students to present and
defend their own solution to water protection. You can also organize an optional field trip to a nature
preserve, to enable the students to see the effects of different choices on a real habitat.