They can kill plants and animals. Put all garbage and yard waste into trash cans to be collected by local sanitation companies. Garbage and yard waste can pollute water if it is dumped nearby. Participate in local community clean-up days near rivers, lakes and streams. This will help keep the water clean.
Students design posters to advocate keeping water safe and clean.
Pass out 11 x 18 inch white drawing paper. Reflect, summarize and discuss. Have students present their posters to the class. Discuss the important elements of each. Permission is granted to reproduce for educational non-commercial uses if this message is shown.