The first in a series of booklets on using outdoor education methodologies to enhance the academic curriculum, this guide is written to help teachers of grades K-8 develop activities to enrich science instruction. The introductory sections define outdoor education and provide a rationale for outdoor science teaching stressing the opportunities it provides for creativity, inquiry, and problem solving. The bulk of the guide consists of detailed plans for outdoor sites. Each activity is adaptable for use in several grades and follows a basic lesson plan format stating purpose, concepts, objectives for learners, materials, and procedures. The first set of three activities illustrates ways to introduce students to the school grounds as an outdoor laboratory. Topics are soil, leaves, and litter. The remaining six activities cover concepts of observation, classification, logical thinking and inference, interdependence, and community. Activity titles include: "Observing: The Basis of Science,""A School Yard Alphabet Hike,""The Mystery Sack,""Similarities and Differences,""The Web of Life," and "The 113 Unit Homestead." An appendix lists 17 organizations providing information about outdoor education. (JHZ)