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Simple Science; Vinegar Baking Soda Balloon Demonstration – As Starter

Simple Science; Vinegar Baking Soda Balloon Demonstration – As Starter

Materials you’ll need:

  • Balloon
  • Baking soda
  • Vinegar
  • Empty plastic bottle (a small water bottle works well)


  1. Prepare the bottle: Start by pouring some vinegar into the empty plastic bottle. You only need enough to cover the bottom, about 1/4 inch (0.5 cm) should be sufficient.
  2. Add baking soda: Now, take your balloon and carefully spoon in a few teaspoons of baking soda. You can use a funnel if it makes it easier. Make sure not to spill any baking soda inside the bottle just yet.
  3. Attach the balloon: Stretch the opening of the balloon over the neck of the bottle. Make sure it’s snug and well-sealed.
  4. Tilt and shake: Carefully lift the balloon, allowing the baking soda to fall into the bottle and mix with the vinegar. As soon as the baking soda comes into contact with the vinegar, a chemical reaction will occur, producing carbon dioxide gas. This gas will inflate the balloon.
  5. Observe and enjoy: Watch as the balloon inflates. You can even tie the balloon off when it’s fully inflated.

This experiment works because when baking soda (a base) reacts with vinegar (an acid), they produce carbon dioxide gas. The gas fills the balloon and causes it to expand. It’s a fun and easy way to demonstrate a simple chemical reaction

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Peter N. Djangmah is a multifaceted individual with a passion for education, entrepreneurship, and blogging. With a firm belief in the power of digital education and science, I am affectionately known as the Private Minister of Information. Connect with me
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