On May 09, 2022, teacher Serey Unn led grade 10A students of American Intercon School, Phsar Thmey Campus to conduct a Biology experiment on “Breath”. At the beginning of the experiment, the teacher showed as well as described the experimental materials such as: clear lime juice, clear glass or plastic bottle, aluminum sheet, plant leaves. It should also be stated that the purposes of the experiment are:
- Identify carbon dioxide in cellular respiration
- Observe and monitor phenomena that occur during the experiment
- Analyze and draw conclusions from experimental results.