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1.
Level 1. Easy Question
What do the straw, 2-liter plastic bottle, two small balloons, and the biggest balloon represent?
2. Describe what happens to the two balloons as you pull down at the bottom of the model.
3. . Does the size of the two balloons increase its volume or size?
4. Describe what happens to the two balloons as you push up the big balloon at the bottom of the model.
5. Does the size of the two balloons that represent lungs change its volume? Elaborate your answer
6. If the balloon at the bottom represents the diaphragm, identify the movement of the diaphragm when
you inhaled and exhaled.