How to make Sidewalk Chalk Natural and Biodegradable

Sidewalk Chalk Recipe


1 Cup cornstarch

1 Cup Water

Toilet Paper Roll or other container for mold Prepare the molds.

Line your chosen molds with wax paper, making sure the waxed side is facing up. If you're using tube molds, cover one side with masking tape to keep the chalk from leaking out.

Make the Chalk 

Mix the cornstarch and water.

Pour equal parts cornstarch and water into a mixing bowl.

Stir so that the mixture has a thick, smooth consistency.

Separate the mixture into smaller bowls, one for each color of chalk you want to make.  Add food coloring. Use a few drops of food coloring to dye the mixtures in the different bowls. Stir each one well so that the color gets fully incorporated. 

Pour the chalk mixtures into molds. Use a spoon to help you transfer the chalk mixtures into individual molds.

Cover the molds with wax paper. 

Let the chalk dry. Wait 12 hours before removing the chalk from the molds.

This chalk is completely natural and biodegradable.

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