The purpose of the present research is to determine science teachers' and biology teachers' awareness levels of environmental ethics in relation to different variables. The "Environmental Ethics Awareness Scale" developed by Özer and Keles (2016) was used in the research. The research is consisted of 237 people, including 130 science teachers and 107 biology teachers working in different school of Turkey. Independent t test, one way analysis of variance (ANOVA), Kruskal-Wallis analysis and Tukey significance test were used to determine the statistical significance of the obtained data in the research using relational screening model. According to research findings; it is understood that education level, graduation achievement, on the tenure of office and the having environment lesson does not make a meaningful difference for science teachers and biology teachers. However, gender and the institution that worked were significant differences (p<0.05) in the environmental awareness of science teachers.