Currently, environmental issues such as aerosols, including PM 2.5 and SPM, which are liquid and solid particles present in the gas phase are attracting much global attention. However, at the level of school education, these issues are not being sufficiently addressed. Therefore, we developed a teaching material for an easy experimental observation of the formation process of aerosols, which we reported on in our previous study. In the present study, the teaching material we had developed was implemented in classes in junior and senior high schools. Furthermore, questionnaires were given to students before and after classes to measure their level of awareness of environmental issues. The results indicate a rise in students’ awareness of environmental issues after attending classes with our teaching material in both junior and senior high schools. Thus, we conclude that the material we developed is effective for environmental education.
