Participants of this study consist of 37 teacher candidates selected through purposeful sampling among 286 students, who applied to the project held between the dates 17th-23rd June, 2014. As data collection tools, “Environmental Knowledge Test” developed by Kışoğlu (2009), reliability co-efficient of which is calculated as (α) 0.64 and “Environmental Behavior Scale” with (α) 0.79, and “Self-Efficacy Beliefs Through Environmental Education Scale” developed by Özdemir (2009) with 0.76 were used. SPSS programme was used to analyze the data and One-way ANOVA for independent variable was applied to demonstrate the differences between the means cores.