This compilation of resource units concerns the latest developments in space biology. Some of the topics included are oxygen consumption, temperature, radiation, rhythms, weightlessness, acceleration and vibration stress, toxicity, and sensory and perceptual problems. Many of the topics are interdisciplinary and relate biology, physiology, physics, and chemistry. Discussions of each topic include introductory paragraphs of background information, laboratory and class activities, study and discussion topics, and a useful bibliography. The studies and experiments suggested are directed at more than one student achievement level. Appendixed aids to the teacher include (1) source lists of aerospace literature and research reports, (2) an annotated listing of pertinent films, and (3) lists of additional audiovisual resources. (DS)