One of a set of high school curricula on nuclear issues, this 10-day science unit helps students understand the interrelationship between the economy, the arms race, military spending, and the threat of nuclear war. Through activities such as role playing, discussion, brainstorming, and problem solving, students develop their ability to evaluate issues and information in order to make educated decisions. Topics covered in the 10 lessons are: the background of nuclear weapons; individual and current world conflicts; weapons; the biological and ecological effects of a nuclear explosion; Hiroshima; radiation; civil defense; nuclear proliferation; perceptions of national security, resources, and a healthy economy; and military spending. In a culminating activity, students are encouraged to express their feelings and explore ways they can affect society. Each lesson includes a plan sheet, readings, student activities, and a homework assignment. Additional materials include an evaluation form; bibliography; and lists of informational, instructional, and audiovisual materials. (LP)