Baking Soda Balloon Chemical Reaction Science Experiment
Chemical reaction science experiments using baking soda and vinegar are a lot of fun and are great learning opportunities. In this quick and easy experiment, we are going to use an endothermic chemical reaction and the resulting carbon dioxide caused by mixing baking soda and vinegar to inflate a balloon.
Materials:
- Empty plastic or glass bottle
- Balloon
- 1 cup of vinegar
- 1/3 cup of baking soda
- Funnel
Instructions:
- Use the funnel to add the 1/3 cup of baking soda into the balloon.
- Twist the neck of the balloon a few times to keep the baking soda from spilling out and set the balloon aside.
- Rinse the funnel and then use it to add the 1 cup of vinegar to the bottle.
- Next, carefully stretch the mouth of the balloon over the bottle opening. Be sure to keep the neck of the balloon twisted to keep any of the baking soda from falling into the bottle and reacting with the vinegar.
- Once the balloon is securely attached to the bottle, allow the balloon the drape over to one side.
- When you are ready, lift the balloon directly over the opening of the bottle and untwist the balloon.
- Quickly shake out the baking soda.
- Step back and observe.
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How it Works:
Once the baking soda falls from the balloon into the vinegar, an endothermic chemical reaction will begin to occur. Carbon dioxide will be released that will create pressure and inflate the balloon.
Make This A Science Project:
Does the temperature of the vinegar effect the chemical reaction? Test different amounts of vinegar and baking soda. Try different sized balloons. Does the size and shape of the bottle effect the speed at which the balloon inflates. Does the addition of salt to the vinegar effect the chemical reaction and balloon inflation in any way?
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