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Baking Soda and

Vinegar Foam Fight

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  1. Bottle/jar with a lid

  2. Water

  3. Dishwashing detergent

  4. Baking soda

  5. Vinegar



  1. Fill each bottle most of the way full of warm water and add a squirt of dishwashing detergent.

  2. Gather the rest of the materials you will need: lots of vinegar and baking soda

  3. Add some baking soda to the bottle (​a couple of tablespoons or so). Put the lid on the bottle and shake it up to get the detergent water all sudsy. 

  4. Pour in some vinegar. This starts the reaction. Feel free to give the bottle a little squeeze to help things along. Quickly take the lid off once you start to see the liquid rise.

  5. Check if any reaction occurs.

  6. Try placing the cotton swab in different places on the plate and observe.


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The temperature of the water should decrease after each tablespoon of Ammonium Chloride is added.


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Science behind this experiment:

CO2 Release

In this experiment, the fizz is produced by a chemical reaction between baking soda and vinegar. Baking soda and vinegar react, and one of the products of the reaction is carbon dioxide gas. This gas forms bubbles that are surrounded by the liquid. The volume of the gas produced and trapped in the foam is much greater than the glass can hold, so some of it spills over the top of the glass.


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