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Home » Early Years Science » Baking soda ice cubes

Baking soda ice cubes

Modified: Jul 5, 2023 · Published: Jul 22, 2013 by Emma Vanstone · This post may contain affiliate links · 8 Comments

Today is the first day of the summer holidays for us, and I have a big plan to post a science activity every day for the whole six weeks. We’re kicking off with a favourite reaction, baking soda and vinegar. The reaction between baking soda and vinegar is a great first chemical reaction for children to learn about, and these baking soda ice cubes are brilliant fun.

round coloured ice cubes containing baking soda
Baking Soda and Vinegar Ice Cubes

Ingredients

  • Ice cube tray
  • Food colouring ( optional )
  • Bicarbonate of Soda ( Baking Soda )
  • Water
  • Vinegar
4 coloured round ice cubes filled with baking soda.
Baking Soda Ice Cubes

How to make Baking Soda Ice Cubes

  • Mix some baking soda with water and food colouring. I didn’t measure how much baking soda, but you need about two teaspoons per large ice cube.
  • Freeze for a few hours or overnight.

Warning – this bit might get messy, so go outside or use a big tray. Be careful not to get vinegar into little eyes as well.

  • Let the cubes defrost a little, and then add some vinegar
  • Watch the fizzing.
fizzing ice cubes, demonstrating a baking soda and vinegar reaction.

Baking Soda and Vinegar Reactions

Vinegar (an acid ) and bicarbonate of soda ( an alkali ) react together to neutralise each other. This reaction releases carbon dioxide, a gas which is the bubbles you see.

As the Baking Soda is frozen in the ice, it takes a while for the reaction to start in this activity, but it’s worth the wait.

baking soda reaction

Don’t forget to pop back tomorrow to see another fun science activity for kids.

Inspiration Laboratories froze the vinegar instead of the baking soda and also had great results. I really want to freeze both now.

More Baking Soda Experiments

If you enjoyed this activity, you’ll love our other baking soda experiments for kids too.

Frozen Baking Soda Ice Cubes  #BakingSodaExperiment #BakingSodaScience #Chemistryforkids

Last Updated on July 5, 2023 by Emma Vanstone

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Safety Notice

Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

Reader Interactions

Comments

  1. Karen Bell

    July 22, 2013 at 1:13 pm

    This looks great, I am going to have to try it with my son 🙂
    Popping over from Parenting Pin-it party, have followed and pinned. http://pinterest.com/karenbell36/

    Reply
  2. Trisha @ Inspiration Laboratories

    July 22, 2013 at 3:37 pm

    I was wondering how well the baking soda and water would freeze, but we hadn’t got around to trying it yet. Now I want to freeze both, too!

    Reply
  3. Cherine

    July 22, 2013 at 5:26 pm

    I love this idea!!

    Reply
  4. Anya from Older Single Mum and The Healer

    July 22, 2013 at 11:10 pm

    I am quite unreasonably grateful to read that you are going to post so regularly over the hols and looking forward to it already, thank you!

    Reply
    • ScienceSparks

      July 27, 2013 at 4:06 pm

      Thanks Anya 🙂

      Reply
  5. Kathleen

    July 23, 2013 at 2:24 am

    Perfect for the hot weather we are finally feeling! I’m up to do it right away! Thanks for the idea.

    Reply
  6. Natalie

    July 24, 2013 at 2:20 am

    I saw a lot of baking soda experiments, but this one is brilliant! Thanks for sharing.

    Reply
  7. The fairy and the frog

    July 28, 2013 at 7:10 pm

    This look so much fun. Thanks for joining in the Monday Parenting Pin it Party

    Reply

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