On the 30th March 2018, Dewey International School – American Curriculum conducted a small project of “Science Fair” on the theme of “Re-use, Reduce, and Recycle” in the school’s main campus located in Romchek 4 village of Battambang province. The project aims at enhancing students’ practical knowledge on science topics that they studied in the lessons at school. There are approximately 350 students and their parents participated in the event where students from Grade 2 to Grade 10 presented their science projects. It is interesting that students initiated different projects around the theme to highlight the importance of environment and its protection through “re-use, reduce, and recycle” process. Students are happy to join in the event that they have the opportunities to show their abilities in science. Teachers and teacher’s assistants were also glad that they were able to lead their students in different science projects.