The information contained in this booklet is designed to assist teachers at all levels (K through college) in planning, preparing, and supplementing science courses and topics. Appearing in a bibliographic format, science resource information is listed including: (1) suppliers of scientific materials, equipment, laboratory furniture, audiovisual aids, and textbooks; (2) speakers; (3) journals and periodicals; (4) free materials; (5) programmed instructional materials; and (6) professional organizations. Most entries include the address of the company or organization, local representative, and a description of the services, materials, or activities which can be provided. (CP)