Title: Innovative Model of the Respiratory System for Class 9th: Breathing for Energy Introduction: The respiratory system is a crucial part of the human body responsible for breathing, the process of exchanging oxygen and carbon dioxide. Understanding its mechanism is fundamental for students, especially in class 9th, to comprehend how our body acquires energy through respiration. In this project, an innovative working model of the respiratory system has been created using simple household materials to demonstrate the process of breathing and its relation to energy production. Materials Used: 1) Plastic bottle (500ml) 2) Paper straw 3) Balloons (2) 4) Twine 5) Scissors 6) Marker pen 7) Tape 8) Glue Procedure: Preparation: Gather all the materials required for the project. Clean the plastic bottle thoroughly and let it dry. Constructing the Trachea and Bronchi: Using the scissors, cut the plastic bottle horizontally, leaving the bottom part intact. Take the paper straw and cut it ...
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