A study explored perceptions of teachers of agriculture regarding resource sharing between secondary school teachers of agriculture and science departments in the United States. Data were collected between October and December 1990 following the Dillman procedure for mail questionnaire administration to a random sample of 400 secondary school teachers of agriculture; the usable response rate was 61 percent (n=244). The questionnaire consisted of three Likert-type summative scales, each containing five indicators representing the followihg conceptual domains or resource sharing categories: instructional services, equipment and supplies, curriculum and instructional materials, program support services, and facilities. The scales measured three sharing dynamics: (1) present sharing of science department resources with teachers of agriculture; (2) present sharing of agriculture program resources with science departments; and (3) projected sharing of science department resources with teachers of agriculture. The questionnaire also contained two checklists of specific shared resources. Instructional services had the lowest mean among resource categories for each of the three sharing dynamics; equipment and supplies had the highest mean. Except for equipment and supplies, teachers perceived they had shared more resources than they had received. Teachers predicted significantly higher science department use in the future. (22 references) (YLB)