19/05/2026
Students of Class 9 and 10 prepared a working model of the diaphragm using different materials to understand the process of breathing in humans. They used items such as plastic bottles, balloons, straws, rubber sheets, and clay to create the model. The activity helped them observe how the diaphragm contracts and relaxes during inhalation and exhalation. Through this hands-on project, students learned the structure and function of the respiratory system in an interesting and practical way. The models demonstrated creativity, teamwork, and scientific understanding among the students.