Oxygen forms about 21% of the air around us. In your body, oxygen forms a vital role in the production of energy in most cells. But if gases can only efficiently diffuse across tiny distances, how does oxygen reach the cells deep inside your body? Watch this video to find out!
One for the kids, the team here at SCHILLER Australia think it's important that our kids know just how special our bodies are - how else will they know to take care of it?