Homemade fizzy sidewalk chalk paint

As we head towards summer and the weather gets warmer what better way to spend your time than making some outdoor art for kids? This homemade fizzy sidewalk chalk paint will be so much fun!! Just follow the step by step directions to make your own sidewalk chalk paint.

fizzy sidewalk chalk paint



Be sure to check out even more outdoor art ideas like homemade chalk paint and this DIY chalkboard table.

sidewalk chalk paint

We have had so much fun playing with these sidewalk paints outside! They're perfect for kids of all ages and double up as a really cool preschool science project.

But let's be fair - adults will have fun right along with kids with this one! It really is the perfect outdoor art for kids that everyone will enjoy.

Scroll down below to get started making your own fizzy sidewalk chalk paint.

Homemade sidewalk chalk paint

Homemade Sidewalk Chalk Paint


Sidewalk chalk paint ingredients:


  • 2 cups baking soda
  • 1 cup cornstarch
  • Water
  • Food dye
  • Vinegar

How to make sidewalk chalk paint


STEP 1: Round up all your supplies


Before you begin, be sure to gather all you supplies so you have them readily available. You'll also want to grab a squirt or squeeze bottle, muffin tin or small bowls, and paint brushes for when you begin playing.

STEP 2: Mix together the sidewalk paint


To get started, mix together the baking soda and cornstarch. 

Sidewalk chalk paint supplies


Then, add a small amount of water and stir together. Continue to add water until the consistency is close to finger paint.

Next, divide the mixture and add food dye to create different vibrant colours; stir to combine.

How to make sidewalk chalk paint


STEP 3: Create paintings on the sidewalk


Now, add the different colours into a muffin tin or some small bowls. (old baby food containers also work really well!)

How to make homemade sidewalk chalk paint

homemade sidewalk chalk paint

Have your children paint different pictures on the sidewalk! Please note that you may need to occasionally mix the paints again as the ingredients will settle.

Outdoor art for kids

STEP 4: Activate the sidewalk chalk paint


Once they're finished painting, fill a squirt or squeeze bottle with vinegar and invite them to make their artwork fizz.

Kids will love to watch the reaction between the baking soda and vinegar. This is such a fun outdoor art activity for them!

fizzy sidewalk chalk paint

baking soda and vinegar reaction

baking soda and vinegar outdoor activity

STEP 4: Clean up


To clean up after your fun experiment, rinse the sidewalk off with water. That's it!

How to make fizzy homemade sidewalk chalk paint using a baking soda and vinegar reaction. Rainbow craft for kids.


We hope you have a BLAST making this fizzy homemade sidewalk chalk paint as we head towards the warmer months. Sidewalk chalk paint is such a fun way to make some outdoor art for kids. Kids of all ages are sure to have lots of fun with the fizzy baking soda and vinegar reaction! 

How to make fizzy sidewalk chalk paint to make outdoor art for kids

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