Contained are some of the instructional materials developed by the Science Project Related to Upgrading Conservation Education. Outdoor activities for elementary school children, suitable for use in camps, parks, playgrounds or sanctuaries are described. Programs are designed for one-day (K-4), two-day (grade 5), and three-day (grade 6) camps, and are intended to supplement an indoor-outdoor approach to teaching. The programs have been tested with elementary school children at camp Ashokan, New York. Thirty-one investigations are described, each contains a problem to guide observations, suggested observations to be made, and lists of questions for discussion. The investigations aim to increase the childrens' understanding of animal and plant adaptations and of the interrelationships between organism and their habitats. Possible effects of disturbing the habitat are emphasized. Some investigations require a minimum of simple equipment, others require none. Several activities suitable for rainy days are described, including six games. The appendix gives a summary of themes and teaching schedules, drawings of leaves of common trees and of pond insects, charts for use in some of the investigations, a complete list of materials and equipment required, and a short list of references for teacher and pupils. This work was prepared under an ESEA Title III contract. (EB)