Presented is an updated version of a previous bibliography prepared by the Minnesota State Energy Agency. The materials included in this document are indexed according to grade level and according to whether they are background materials or classroom activities. Each of the items listed were evaluated and included into either the "A" list or the "B" list. The "A'' list contains activities and background materials that were judged to be somewhat better by virtue of: (1) content included; (2) activities; (3) ease of use; (4) background materials; and/or (5) reference provided. The "B" list contains activities and background materials which cover a wider range of subjects and approaches and may be used as the core of or as supplements to energy units. In addition to the usual bibliographic information such as title, author, publisher/source, other information included is: (1) suggested grade levels; (2) suggested subject areas; (3) media type; (4) cost and date issued; (5) types of activities; (6) energy topics; (7) approaches; (8) student outcomes; (9) what teacher background is assumed; and (10) general comments. Also indicated is whether materials are designed for use by students, teachers or both. (MR)