The respiratory system
create a story about the life of an oxygen molecule as it travels through the respiratory system and enters the blood. Your story should include the following question:

What structures does the oxygen molecule pass by and travel through?

• What is the function of these structures? What do they look . like? How do they work?

. What defense structures does the inhaled air come in contact with on its journey? How do these structures clean the air and defend the body against foreign invaders?

. Any other appropriate information.

Feel free to be as creative as possible and include images to help with your story. Your story may take the form of a picture book, comic strip, short story or PowerPoint slides Prezi, etc.