Class -7 SCIENCE Activity: Modelling Respiratory system

 

Learners of class 7 performed individual activity in which they prepare model of human respiratory system. They took waste bottle, balloons, pipe, scissors, tape to make the model. Step 1: ​Cut the Bottom Off Your Plastic Bottle, Step 2: Carefully Cut/screw a Hole in Your Bottle Cap Step 3: ​Cut Your Straws to Be Your Windpipe, Step 4: Prepare Your Balloons to Be Your Lungs, Step 5: Attach Your Lungs to Your Windpipe, Step 6: ​Put Your Lungs Into Your Bottle, Step 7: ​Prepare Your Plastic Wrap to Be Your Diaphragm, Step 8: Make and Observe Your Lungs Inhale and Exhale!, With the help of model making they easily understood the mechanism of inhalation and exhalation of air into and out of the lungs.