Air Bags - The Respiratory System
Fourth graders study how the nose and mouth prepare air for the lungs; describe how oxygen enters the body and is exchanged for carbon dioxide; and explain how muscles help the lungs to work.
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Investigation: Pollution Prevention Is Disease Prevention
Plenty of background information about how air pollution affects much more than just our lungs is included on this attractive handout. After reading, pupils make a working model of a lung and diaphragm. Junior physicians place a small...
4th - 6th Science CCSS: Adaptable