You can only purchase the 3 primary colors of tempera paint (red, yellow, and blue) and mix the powders together with the plaster and water to create so many beautiful colors. It makes a great science experiment too for the young ones!
By Marci from West Monroe, LA
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By ayesha christmas 09/29/2010
This a great tip, great science to be learned too, thanks for sharing, put it on Teachers pay teacher they pay too!
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