Balloon Inflation Experiment


Did you know that you can inflate a balloon with baking soda? This is a great experiment for children to have a go at in the kitchen – it only requires a few everyday items and shows how substances can change when mixed together.

 The warm water activates the alkaline baking soda – causing carbon dioxide to be released and the balloon to inflate.

  1. Put the baking soda in your plastic bottle. Keep your balloon handy – this will need to be secured around the top of the bottle.
  2. Pour the water into the bottle and place your balloon over the neck straight away.
  3. Watch your balloon inflate as the baking soda reacts with the water!


Prep time: N/A

Cook time: N/A

Serves: 0

  • 2 tbsp baking soda

  • Warm water

  • Balloon

  • Plastic Bottle