Monday, September 18, 2017

DIY Sidewalk Chalk

Did you know that chalk is a rock? It is made from gypsum. Read about gypsum online.
Plaster of Paris is just gypsum ground into powder. Here is a recipe for making sidewalk chalk.

Supplies List
a small container of Plaster of Paris
5 oz. disposable plastic cups [one for each color you want to make]
acrylic craft paint in your favorite colors
popsicle style craft sticks
water
measuring cups [1/2 c. 1/4c.]
measuring spoon [1t. size]
scissors

Steps to Follow

  1. Measure ½ c Plaster of Paris and place it into a plastic cup.
  2. Add 1 t. of acrylic paint to the plaster. Use a craft stick to scrape all the paint off the measuring spoon.
  3. Slowly add ¼ c. water while mixing. If you need to. Add a few extra drops water until the mixture looks like thick pudding.
  4. Set aside to harden overnight. Repeat steps 1-4 using different color paints.
  5. The next day, cut off the plastic cup. If the sides of your sidewalk chalk feel cool and damp, let dry for another day before using.
  6. Draw a picture!

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