This program, developed for the primary grades, was started in September 1972 with the ultimate goal being the development (sixth-grade students) of citizens knowledgeable and conscientious about environmental concerns. A cadre of specially trained teachers utilized the adapted SCIS materials with emphasis on student planning and involvement, independent projects, and outdoor activities. In September 1973 the project was expanded horizontally. The final evaluation made assessments of cognitive developments, affective improvements and overall project success as perceived by teachers in the project. At all grade levels cognitive achievement, as measured by criterion referenced tests, surpassed expected levels. Acquisition of scientific attitudes was judged by individual teachers by means of a rating scale; in all grades the percentages of those who received higher than average ratings surpassed the expected level of 60 percent when the ratings on all factors were averaged. Using Semantic Differential scales, graduates of the program were appraised on the development of a positive attitude toward conservation of the environment; more than 60 percent were found to be in the ideal quadrant of the semantic space; it was inferred that the majority of the program participants developed desired levels of favorable attitudes. (Author/BT)