Ages 7-12
This is better than the chalk they have at school, because you make it yourself! 1.
Mix plaster of Paris and water to make a "pudding" consistency.
2. Add drops of food color, as desired.
3. Stir until the mixture starts to thicken. Work fast!
4. Stand your cardboard tubes on end (on wax paper or foil).
5. Pour the mixture into the tube which is standing on end on some wax paper or foil.
6. When firm, peel off the cardboard.
7. Allow to dry overnight. Go out to your sidewalk or driveway, and start doodling! Tip: Make one tube at a time and store in an airtight container. Source: http://www.mccormick.com |
