This unit on pollution is one in a series of three prepared for use in the classroom. An interdisciplinary approach encompassing mathematics, science, and social studies is utilized in these environmental units. The material is designed for middle grades and above. Many activities are open-ended with each activity in this unit emphasizing the pollution crisis. The unit is divided into mini-units dealing with air, litter, noise, and water pollution. For some of the mini-units, student worksheets are provided which can be easily duplicated. Thought questions are presented to facilitate logical thinking based on skills and knowledge of mathematics, science, and social studies. (JP)