Respiration experiment

This video will show you how to demonstrate anaerobic respiration by filling a balloon using sugar and yeast. The equipment you will need for this experiment includes:

  • Yeast
  • Sugar solution
  • Empty bottle with cap
  • Balloon
  • A spatula


  • Use the spatula to transfer the yeast to the empty bottle
  • Transfer the sugar solution to the bottle now with yeast
  • Close the bottle with the cap and shake it for a few seconds
  • Open the cap and insert the balloon over the bottle neck
  • Leave the balloon until inflated, which can take up to 40 minutes