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What Each Piece Represents of a Real Lung

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What Each Piece Represents of a Real Lung

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When the blue balloon (diaphragm) is pressed in towards the cup (thoracic cavity), the lungs contract. When the blue balloon (diaphragm) is pulled outward, it creates a partial vacuum causing air to be pulled into the water balloons (lungs).

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Cover the top of the cup with the normal balloon. Make sure the balloon does not have holes in it.

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Insert clear tube into the hole cut into the bottom of the cup.

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otherRepeat step 1 for the side of the black contector using the remaining water balloon and rubber band.

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Attach the water balloon (small ballon) to one side of black connector using a ruber band. Make sure the rubber band is tight.