The purpose of this study was to investigate, in a sample of junior secondary schools in southern Tasmania, the area of the implementation of the Science Syllabus (Schools Board of Tasmania, 1978). Data were collected on the characteristics of schools, science teachers, their perceptions of their science curriculum decision making processes, the strength of influences on those processes and the implementation of the Science Syllabus. The measuring instrument was developed by the researcher. This involved interviews with science teachers and two pilot studies outside the study sample. The main study sample was all the science teachers in junior secondary schools in Region 3 of the Schools Board of Tasmania. The measuring instrument was a self administered questionnaire. Ninety six questionnaires were distributed. The response rate was 83 per cent.