Sidewalk Chalk

Directions

1. 1
   Prepare your chalk molds by covering one end of each tissue tube with duct tape or masking tape.set aside.
2. 2
   pour the warm water into your mixing container -- then sprinkle the plaster of paris powder into the water a bit at a time until it no longer dissolves.
3. 3
   (about 1 1/2 cups) -- stir thoroughly.
4. 4
   until the mixture is as thick as pudding.
5. 5
   add tempera paint to the plaster mixture and stir until blended.
6. 6
   pour the colored plaster into the tissue tubes.
7. 7
   gently tap the side of each tube to get rid of air bubbles.
8. 8
   let dry for one or two days.
9. 9
   peel off the mold and chalk up a masterpiece.