Breathe in . . . breathe out. Do you ever wonder how you can do that? And do you ever wonder what happens to the air you breathe? Read this book to learn about your amazing lungs and how they work!
It makes sense to consider the circulatory and respiratory systems together. Blood circulates the oxygen taken in by the lungs. Furthermore, keeping one healthy through exercise generally means...
Your lungs are constantly at work exchanging carbon dioxide created by your body with fresh oxygen from the air. We couldn't live without lungs! Readers will learn about the process of respiration...
How much do young readers know about their lungs? From taking in oxygen and getting rid of carbon dioxide, it's time to explore lung basics and more. Lungs presents incredible facts and stories about...
