Support for science instruction has been increasing in Jordanian schools within the past two decades. Science is studied throughout all three levels of schooling. Corresponding with this growth in science education are improved programs for science teacher training. Inservice programs are offered to raise levels of teacher competence and effectiveness. The purpose of this study is to identify the most prevalent inservice needs of Jordanian secondary level science teachers and to determine if these needs differ by specialty areas. This report includes: (1) procedures of the study; (2) data collection information; (3) research findings; and (4) concluding remarks. The report indicates that the most prevalent needs were associated with science instruction delivery, facility and equipment administration, and improvement of competence levels for science teachers. Comparisons are made with secondary level science teachers from the United States. Tables of survey statistics are also included. (ML)