Play dough Materials: 2 cups flour 2 cup salt 4 tsp cream of tartar 2 cups water 2 Tbsp cooking oil food coloring Method: Mix four, salt and ream of tartar. Add water and oil. Stir over emdium heat until mixture forms a ball. Divide dough into four bowls. Ass a different color to each and kneas well. To prevent hardening, seal in plastic bags and stor in refrigerator between use.