Baking Soda Sidewalk Chalk

Ariel
by Ariel
5 Materials
$12
13 Minutes
Easy
Hey all! As you may already know, baking soda has so many different uses. I have a cool craft for the kids to do just in time for the summertime: Baking Soda Chalk.
This project is super simple, all you will need is baking soda, corn starch, an ice cube tray, watercolor paint, water, and your freezer.
This project is super simple, all you will need is baking soda, corn starch, an ice cube tray, watercolor paint, water, and your freezer.





Then add 4 tablespoons (or ¼ cup) of cornstarch into the baking soda.
Add 8 tablespoons (or ½ cup) of water into the powdery mixture.
Next, add in your choice watercolor paint.
Mix it all together. Then pour your mixture into an ice cube tray and place in the freezer. It takes around 6 hours to harden up.
Mix it all together. Then pour your mixture into an ice cube tray and place in the freezer. It takes around 6 hours to harden up.
VOILA! Now you got nice cooling chalk for a hot summer day! Your kids will love helping out with this and playing with it. Heck, you will too!


Suggested materials:
  • Baking Soda   (CVS)
  • Cornstarch   (CVS)
  • Water   (Sink)
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Frequently asked questions
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3 of 15 questions
  • Tanya Tanya on Apr 27, 2020

    Hi, made sidewalk chalk today with cornstarch , water & food coloring. However, there is still a layer of water on top of all the chalk. Will this eventually dry as well ?

  • Judie Judie on Jan 07, 2021

    I see that a couple of people used food color. Does that matter? Will it stain what it comes in contact with?

  • Georgette Georgette on Feb 17, 2021

    how much baking soda??

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