Respiratory System
by Crane, Cody
Series:True Book: Your Amazing Body
Prefer borrowing? Open Library may have a digital copy too.
AR Book Level
5.6
AR Points
1
Word Count
3,469
Interest Level
Middle Grades (MG 4-8)
Genre
Nonfiction
AR Quiz #
523186 EN
About this book
A person breathes in and out about 17,000 times a day. The left lung is slightly smaller than the right, to make room for the heart. Learn all this and more in Respiratory System.