The purpose of this research was to provide information about gender-related worldview structures, among college students, that can inform the instructional decision making process. Information was generated in a logico-structural investigation of the interrelationship of gender, interest in science, and concept of nature. The strength of the logico-structural approach is its sensitivity to intra-worldview variation and its avoidance of artificiality. In this study, "concept of nature" was observed as college student responses to a direct question about nature. The preliminary results indicated that there were gender-related concepts of nature. Secondly, the results suggested that the concept of nature was related to interest in science among women college students but not related to interest in science among men. (CW)