Children's Earth Paint Kit Our best-selling, 100% non-toxic Childrens Earth Paint kit creates a creamy, tempera-like paint when mixed with water. Add more water to create watercolors. Made with natural earth pigments, organic corn starch and gum Arabic (tree sap). Washable and cleans up quickly with just water. Each kit contains six colors of natural earth paint: red, orange, yellow, green, blue, and brown; set of 6 biodegradable mixing cups and an Earth Art booklet with nature-based craft tutorials. Paints on wood, rocks, paper, fabric, glass and more.