This study investigated the capability of Indiana elementary and secondary school teachers to deal effectively with education about the environment and related energy issues. Questions addressed were: (1) What do Indiana teachers know about their physical environment? (2) How do Indiana teachers feel about the environment? and (3) How do the teachers' responses compare to those given by teachers a decade ago? Recently certified elementary and secondary teachers were randomly sampled by mail and data was compiled on 204 respondents. Teachers provided information on personal and professional backgrounds and completed a two-part knowledge-related scale on energy/environmental terms, concepts, and problems. A third part of the survey was designed to indicate the feelings and attitudes of these teachers toward 21 selected energy/environmental expressions (using a semantic differential format). Analysis of the results reveal that current teachers know too little about energy and the environment but know somewhat more than their counterparts in 1974-75. It is indicated that Indiana teachers are caring, but are only partially literate regarding energy and the environment. (An appendix contains the complete survey instruments.) (ML)