To show that expired air contains carbon dioxide, Science

To show that expired air contains carbon dioxide

The two flasks are linked so that when you breathe by the T piece, all the air bubbles by the lime water in the flasks. One tube is closed with the finger whereas the air is drawn in; the other tube is closed when it is expelled.

 

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Posted Date: 5/17/2013 3:44:45 AM | Location : United States







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