Breathing is probably something you haven’t given too much thought to. But how does all this happen? How does air get from outside your body down to all of the tiny little cells that make up the tissues in your body that need oxygen in order to stay alive? Take this fun adventure through the Respiratory System, and create a 3-folder Lapbook.Completely comprehensive Study Guide included! Designed for K-8th Grades. This ebook format includes a downloadable PDF file. Just follow the instructions, cut, fold, glue, and create!