1/3 cup sugar
1 cup corn starch
4 cups water
Food Coloring, red, yellow and blue
Zip lock baggies, strong clear packing tape
Instructions: Mix together the sugar, corn starch and water in a sauce pan. Stir constantly and heat until the mixture begins to thicken. Remove from heat and let cool.
Divide the mixture into three bowls. Add a different color of food coloring to each bowl, one red, one yellow and one blue. Put approximately three tablespoon of each color into a zip-lock bag. Seal the bag and tape the top closed.
Knead the baggie to mix colors just enough to look like a rainbow. Lay bag down on a hard surface and gently press to flatten it. You can hang it in your window when finished. You can also just play with it and see what happens to all of the colors!