With this product, students show the differences between carbon dioxide and oxygen as well as macrophages and mucus. They also show the flow of oxygen and carbon dioxide exchange thorugh the respiratory system in a simple diagram as well as through a board game that can be as simple as moving a step at a time with spelling or math extensions, or more challenging additions of cards or more instructions. What happens when someone chokes is explained, as well as how we currently help a choking victim.Students cut and paste labels to a respiratory system diagram. The involuntary function of breathing is explained, respiratory infections are covered and compared, vaccines and antibiotics are covered as well as respiratory diseases and cures or medicines, how doctors diagnose lung issues, and how we can prevent lung diseases. At the end of this unit there is a 20 item multiple choice test. All activities include answer keys where they are applicable. To extend into Math, students have 2 multiplication problems and 2 division problems related to facts about the respiratory system. In order to both extend into Math and Language Arts, you can supplement math facts, spelling words, or Language Arts tasks for students to complete during the oxygen exchange game.