This chapter presents an example of STEM and English language teaching integration. In this study, it was aimed to improve students' English language skills and increase their engagement with the appliance of STEM. In this descriptive study, a way of integrating STEM into the language teaching process was explained with an applied example. The research is of qualitative design with the implementation of action research method. As a result, the implementation improved students' language skills and gave students the chance of using knowledge of other disciplines in English courses while increasing their engagement. Additively, the implementation developed students' 21st century skills. It is thought this study can be an inspiration for English teachers to apply various approaches in their teaching processes. In addition, the study can be accepted as an example of the contribution of STEM to English language teaching process. Moreover, the study is a representation of teacher research, and this research can be assessed as an inspiration for teachers to turn their practices into research.