Environmental awareness is a multidimensional construct consisting of cognitive, attitude, and behavioral components. Cognitive components consist of knowledge of one's environment, locus of control, and interpersonal communication. This knowledge of the environment concerns ongoing environmental issues. While the attitude in this case concerns one's attitude towards the environment. Some people have shown that environmental attitudes capture a person's level of concern or interest in specific or general aspects of the environment, ecology, or energy saving. The behaviormeasured in this study as one component of environmental awareness is recycled behavior. In providing "opportunities for students to engage in a variety of personal, social, economic or political issues stemming from the role science has come to work in students makes the relationship between science education and environmental education more suitable, and therefore it makes sense to pursue the development of environmental awareness through science.This research is to discover the effects of Knowledge about the environment, locus of control and Interpersonal communication through environmental awareness. This study uses quantitative method with Path analysis technique where the data has been analyzed by path analysis after the variable data is entered into the correlation matrix. In this study, respondents were grade 8 students of SMP Negeri in Grogol Subdistrict, West Jakarta who had been selected as analysis units and 187 samples were selected in multi stages random sampling. The results found environmental awareness was directly influenced by interpersonal communication. In addition, it was found that environmental awareness is indirectly influenced by knowledge of the environment, locus of control through interpersonal communication. Based on these findings, it can be concluded that variations that have occurred in environmental awareness may have been influenced by variations in knowledge about the environment, locus of control, and Interpersonal Communication.Keywords: knowledge of the environment, locus of control, interpersonal communication, environmental awareness