Sidewalk Chalk

1 c Plaster of paris (do not pack)
About 1/3 to 1/2 cup cool water
Liquid tempera paints, any color


Pour plaster into a disposable container (i.e. margarine container or
large paper cup.) Stir in most of the water. Add 2-3 tablespoons of
liquid tempera, mixing well, especially at the bottom. Add a little
more water as the mixture thickens. Stir well and pour into
containers. Three-ounce paper cups work well. Peel paper off when the
chalk is dry.