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 the 4-6 grade levels, deals with the notion that the lives of waterbirds and humans have always been interwoven by the ecological threads affecting and affected by each. Included within the activities themselves are copies for transparencies, game boards and cards, charts, maps and cut-outs. Lists of resource people, places and reading for students and adults are attached to specific activities. Teacher Background Information Sheets and Student Handouts (used for student information and evaluation) have been included with most activities. (TW)