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Inhaled and Exhaled air

By Anna and Tom

Anna P

on 3 December 2012

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Transcript of Inhaled and Exhaled air

By Anna and Tom Inhaled and exhaled air When we breathe we inhale and exhale air. You can compare the percentage of gasses in inhaled and exhaled air. Exhaled air is warmer and cleaner than inhaled air. Nitrogen We inhale 78% Nitrogen and exhale 78% nitrogen. The percentage of Nitrogen does not change because the body does not use nitrogen. Oxygen The percentage of Oxygen in exhaled air is less than in inhaled air because the body uses Oxygen for respiration Carbon Dioxide The percentage of carbon dioxide increases when exhaling as it is a product of respiration. Water Vapor The amount of water vapor in inhaled air depends on where you are but you exhale more water vapor because this is produced in respiration. A useful link to a site that has experiments to compare carbon dioxide content of inhaled and exhaled air: http://www.biotopics.co.uk/humans/inhaledexhaled.html Thank You for listening!
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