The ocean affects all of our lives. Therefore, awareness of and information about the interconnections between humans and oceans are prerequisites to making sound decisions for the future. Project ORCA (Ocean Related Curriculum Activities) has developed interdisciplinary curriculum materials designed to meet the needs of students and teachers living in Washington State. Each activity packet provides the teacher with a set of lessons dealing with a particular topic related to the oceans. Included are student worksheets, lesson plans, a vocabulary list, and a bibliography. This activity packet designed for grade levels 8-9 focuses on making measurements on beaches. The activity "Profiles" gives directions on how to measure and record the profile of a slope. In the "Transect" activity, students sample populations using the single line transect-quadrat method. This activity is intended to follow up studies of beach zonation in the packet "Beaches." In addition to measuring and sampling techniques, analysis of the inter-relatedness of beach life and environmental factors is stressed. (TW)