Topics and activities related to oceanographic research (innerspace exploration) are the focus of this multidisciplinary, marine education teaching guide for students in kindergarten through grade 6. The guide is divided into six sections (labeled A through F). The first five sections consist of various kinds of activities, with the appropriate grade levels (K-6, K-3, or 4-6) indicated. Each activity includes an objective, list of materials, suggested questions, instructional strategies, and other information needed to complete the activity. Topics explored in these sections are: (1) the nature of innerspace; (2) the changing earth; (3) voyages of discovery (including famous expeditions); (4) tools and vessels of the researcher; and (5) people and the sea. The final section provides a bibliography and list of films. (JN)