Final answer:
Tempera, gouache, and watercolor are all water-based paint media.
Explanation:
Tempera, gouache, and watercolor are indeed all water-based paint media. Watercolor, for example, consists of pigment and a binder of gum arabic, a water-soluble compound made from the sap of the acacia tree. These paints can be applied to various surfaces like paper, wood, canvas, and more.
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