This publication is an interim edition of a curriculum guide published by the Ministry of Education of British Columbia for use during the 1977-78 school year. This revised guide is to replace the "old" Elementary Science Program first introduced in 1964 (Primary), 1968 (Intermediate and Grade VII), and the alternative Materials Based Program introduced in 1969. The guide includes a rationale for revision, the philosophy of elementary science education, description of the programs (three programs in all), the evaluation procedure, research and reporting skills, and a basic equipment and materials list. (GA)