Intended primarily for the secondary level, this manual presents 35 laboratory and field activities in marine science. Also included are chapters which cover field trip logistics, marine science centers, films, and reference materials. Typical amonq the lessons are "Charting Local Current Systems,""Salinity,""Living World Within a Sponge,""Adaptation and Function," and "Zonation in Marine Environments." Stressed in the units is the relationship of the parameters and organisms studied to the total ocean environment. Each unit contains separate introductory sections for teachers and students as well as suggestions for following up or extending the main activity. (WB)