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Craft Corner: Homemade Sidewalk Chalk

By Debby Perry, Macaroni Kid Robinson Publisher July 1, 2021

Nothing screams outside fun like sidewalk chalk! Our little Rembrandts go through buckets full each summer. Here's a fun activity to do as a family that helps keep your CHALK supply plentiful! It's cheap, easy to make, and a great science project! The sidewalk is their blank canvas — let them create!

What You Need:

  • Toilet paper or paper towel tubes(cut paper towel tubes in half)
  • Scissors
  • Duct tape
  • Wax paper
  • Small bucket or disposable container to make the recipe
  • ¾ cup of warm water
  • 1½ cups Plaster of Paris
  • 2-3 Tablespoons of tempera paint 

What You Do:

  1. Cover end of each tube with duct tape. Line each with waxed paper. Stand tubes on end within a container nice and snug similar to bowling pins. (Duct tape side goes on bottom.)
  2. Follow directions to begin making Plaster of Paris. (Monitor your children for safety. It hardens in 20-30 minutes so you'll need to work fast.)
  3. Pour the tempera paint into the Plaster of Paris mixture and stir so that it is mixed thoroughly. Use separate containers to create the varying colors.
  4. Spoon your colored chalk mixture into the wax paper lined tubes. Give each tube a tap to release air bubbles!
  5. Set the chalk aside to dry. It might take a good three days or so.