Science Secrets · Drawing 26 of 40
Where Does My Breath Go?
The Human Body
You breathe air into your lungs, then breathe out. In the lungs, oxygen passes into the blood. Some of the body’s carbon dioxide leaves when you breathe out.
Did you know?
These exchanges happen in tiny air sacs called alveoli.
Look together
Which object shows air leaving the mouth?
An idea to try
With an adult, rest a hand on your ribs and breathe normally. Describe the movements you notice.
For the adult reading along
A little more to discover
The diaphragm and other muscles help with breathing. The pinwheel shows exhaled air, not the invisible exchanges in the alveoli.
Sources and illustration notes (1)
Simplified scene and shapes. Models, imagined comparisons and enlargements do not preserve all real measurements.
These links lead to other websites. Explore them with an adult. References identify the institution and the related lesson; some linked pages are in French.
- Nemours KidsHealth: Your Lungs & Respiratory SystemYou breathe air into your lungs, then breathe out. In the lungs, oxygen passes into the blood. Some of the body’s carbon dioxide leaves when you breathe out.
Source review: 2026-10-12. Illustrations are simplified for colouring.
