D. Teacher demonstrates how to change a faucet washer to correct a leaky faucet. Students practice in pairs, with a student witness signing a completion document when a fellow student has successfully completed the task. E. Students set up a filtration system for water using 2-liter soda bottles and different materials such as pebbles, pea gravel, sand, activated charcoal, and the like to demonstrate how water is filtered. Can bring in importance of the wetlands as natural filtration systems. F. Students survey the school environment, identifying potential ways to decrease water waste.
Students write a letter to the principal to suggest proposed changes.
Closure Have students total the amount of water and money that has been saved at the end of a month of carrying out the agreed upon water conservation behaviors. Students turn in their data tables containing data collected from home and their calculated estimate of water usage. Students write down their goals for decreasing water use and have them keep a daily journal of how successful they were at following through. Each day, when students arrive in class, they should share their successes and failures with their water conservation group, estimate gallons saved and enter their group's savings on the wall chart. At the end of a week, students should reconsider their goal and strategies for meeting that goal.