On February 16, 2022, Mrs. Mech Sophorn led the 9th grade students of American Intercon School, Tuol Kork Campus, to carry out an experiment on “Hydrogen and Oxygen Reaction” in the Chemistry subject. The purpose of this experiment is to provide students with a better understanding of the lessons that can provide them with real knowledge and enhance their memory in a theoretical study. In addition, the students practiced, collaborated, and worked well together as a team.