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From Karnataka Open Educational Resources
15 bytes added ,  06:39, 15 March 2023
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* Make a hole in the cap of the bottle and insert a Y-tube with balloons into it. Now, place it in the bottle by turning the cap.
 
* Make a hole in the cap of the bottle and insert a Y-tube with balloons into it. Now, place it in the bottle by turning the cap.
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* Cover the bottom of the bottle using a transparent polythene cover.(Note-Bottle should not be covered tightly).
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* Cover the bottom of the bottle using a transparent polythene cover/balloon.(Note-Bottle should not be covered tightly).
* A model of lungs is now ready. Pull the transparent cover downwards you will see the balloons inflating, when you release the cover you see the balloons deflating.  
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* A model of lungs is now ready. Pull the transparent cover/balloon downwards you will see the balloons inflating, when you release the cover you see the balloons deflating.
    
* Describe the structure and function of the lungs using the model created.
 
* Describe the structure and function of the lungs using the model created.