KnowMom! Science Experiment: Fizzy Ice – Baking Soda and Vinegar

Since it’s been so hot the past couple weeks, I wanted to do a science experiment using ice. The girls love seeing the reactions when we mix different chemicals together, so Fizzy Ice was the perfect choice. What is Fizzy Ice, you ask? It’s ice that is made up of baking soda and water. When you pour vinegar over it, the chemical reaction creates a foam. We used food coloring to make the ice look pretty and more exciting for the girls. See below for how to do this fun experiment.

What you’ll need:

  • Large mug that can go into the freezer
  • Baking soda –  4 Tablespoons per cup
  • Water
  • Food coloring (optional)
  • Vinegar
  • Large baking tray

What to do:

Fizzy Ice

Add 4 tablespoons baking soda and a couple drops of food coloring in a large mug. Fill with water about an inch from the top. Mix well and freeze for several hours.

Fizzy Ice

Once completely frozen, remove from freezer. Let thaw slightly so that the ice slides out of the mug easily.

Fizzy Ice

We started off placing the all of the ice blocks in one large pan.

Fizzy Ice

The girls poured vinegar over the ice blocks and watched it fizz as the vinegar and the baking soda reacted. The colors in the pan were blending together so we decided to try splitting up the ice blocks.

Fizzy Ice

This worked out much better. I would recommend doing this from the beginning!

Fizzy Ice

So much fizz! The girls were squealing in delight each time they pour the vinegar over the ice!

So why does this happen? Because backing soda is alkaline and vinegar is acid based. When the chemicals touch one another, carbon dioxide is created. This is such an easy and fun experiment for small kids to do. They will love watching the reaction that baking soda and vinegar create!

Live, Laugh, Love,

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