day and night science project working model innovative inspire science project diy howtofunda

Human respiratory system working model 3D, in this course helps students explore how the lungs and airways function in a clear, visual, and interactive way. In this course, learners build a 3D model using simple materials such as bottles, balloons, straws, and clay to represent the lungs, trachea, and diaphragm. By pulling or pushing the diaphragm part of the model, students can observe how air enters and exits the lungs, simulating the process of inhalation and exhalation. The course explains the role of different organs like the nose, trachea, bronchi, lungs, and diaphragm, and shows how oxygen is exchanged for carbon dioxide in the alveoli. It also highlights the importance of the respiratory system in supplying oxygen to the body and supporting life functions. Through this hands-on project, learners strengthen their understanding of biology, gain problem-solving skills, and connect theory with practice. This model is ideal for classrooms, science fairs, and interactive learning activities, making complex biology concepts easy and engaging. howtofunda