Colour Surprise Baking Soda and Vinegar Experiment

Looking for an engaging activity for your toddler or preschooler? This twist on a classic baking soda and vinegar experiment is a fun surprise for kids that will strengthen their hands and work on fine motor skills without even knowing it!

Baking Soda and Vinegar Experiment to the Rescue!

These days we’re all trying to think up activities that will entertain our kids without screens, right?

But we also want to make sure the activities we provide are actually valuable for our children.

Lots of time it seems like activities kids can do independently aren’t that exciting, and activities that are exciting need a lot of parent help, right?

Well, this is the perfect activity for you! Kids absolutely love this activity and it requires little supervision after a few minutes of initial set up. Plus, it works on hand strength and fine motor skills!

This activity involves food colouring, baking soda and vinegar. You can cover food colouring with baking soda, then let your child spray the vinegar on the baking soda to uncover the colour underneath.

First, the vinegar, as we all know, will cause the baking soda to bubble. But after a few pumps of the spray, the colour underneath will show itself for a fun surprise!

Kids are so engaged when doing this activity. We have done with with H a number of times and she’s always excited and eager to see what colours she can unearth.

The pumping motion from the spray bottle really gives little hands a workout. I like this modification over using an eye dropper or pipette, because it gives more exercise to the hands. Because kids are so motivated to see colours explode, they will keep spraying, even when their hands start to get a little tired. Thus, this experiment really works hands and kids are willing to stick with it.

I highly recommend this activity to anyone who wants to work on hand strength, or just wants to entertain their kids during long days at home.

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So without further ado, here are the directions for this amazing baking soda and vinegar experiment!

Baking Soda and Vinegar Colour Surprise!

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Materials for Colour Surprise Experiment

  • muffin tin
  • food colouring (I like these neon colours)
  • baking soda
  • spray bottle
  • vinegar (can be cut with water)

Instructions for Colour Surprise Experiment

Add a few drops of food colouring to each part of the muffin tin. Mix two colours in one muffin tin for a surprise!food colouring in baking pan

Cover the food colouring with a spoonful of baking soda.

baking soda covering food colouring

Add vinegar to the spray bottle (you can cut it with water if you’d like).

Give the spray bottle to your child and let them spray and spray to uncover the colour surprise underneath!

fine motor practice: spraying

colour surprise baking soda and vinegar experiment

You can alter this activity by simply using a sheet pan and scattering drops of food colouring all over, then shaking out a lot of baking soda on top. Personally, I liked the contained mess of the muffin tin!

I hope this activity entertains your child and gives you some much needed peace and quiet!

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Author: Cindy

Cindy is an kindergarten teacher and former district Literacy Lead who feels passionately about play-based learning. Cindy has a Master's Degree in Education, with a focus on Curriculum Studies. She is the mom of two sweet girls and a big old doggy. In between playtimes, she enjoys chai tea and a good book.

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