Tuesday, 21 October 2014

Respiratory System

Oxygen can never be permanently stored in the body, because it is used up by the parts and organs in the human body. My fact is telling me that we use oxygen all over our body. The fact the body is so closed up and that air can never stay inside they body is pretty cool.

https://www.youtube.com/watch?v=RkE1S74zaE0

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