A unit of study is presented in this monograph, intended to be self-sufficient, though teachers are urged to read as much material as possible. Overall objectives are presented. Time allotted is suggested at two weeks. The unit contains ten mini-units, plus class activities, class discussion questions, individual student projects, and possible quiz questions. A bibliography is included in the unit as well as five suggested field trips, possible films with information relating to cost, and place of procurement. Magazines and possible guest speakers are suggested. (EB)