Blood Breathing Waste

http://www.edhelper.com/teachers/health_Respiratory_System.htm worksheet
http://www.youtube.com/watch?v=mLiLVtsff5k&feature=related lung operation
http://science.nationalgeographic.com/science/health-and-human-body/human-body/lungs-article.html interactive

http://www.youtube.com/watch?v=fJM-fDl-Hbo Lung tour
http://www.youtube.com/watch?v=Nw9eT3l_3qw&feature=related actual lung inflating

<a href="http://<http://prezi.com/p8ahkdondizl/year-8/>prezi.com/<http://prezi.com/p8ahkdondizl/year-8/>p8ahkdondizl/year-8/<http://prezi.com/p8ahkdondizl/year-8/>" target="_blank">Prezi</a>

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