Designed to provide teachers of earth science with activities and information that will assist them in keeping their curricula up to date, this publication contains activities grouped into six chapters. Chapter titles are: (1) Weather and Climate, (2) Oceans, (3) The Earth and Its Surface, (4) Plate Tectonics, (5) Uses of Space Photography, and (6) Space. Each activity has been set in the same general format (introduction, objectives, materials, procedure, and, for some activities, review or summary questions). Some activities are new; others have been standard for years but are located in publications no longer readily available to teachers. (PB)