Watercolor is a painting medium made from suspending pigment in water. There are a variety of materials it's used on, such as canvas, watercolor paper, and vellum. Questions are about using watercolor, selecting the right materials, preserving it and more.
Watercolor - in which the paints are made of pigments suspended in a water-based solution
The traditional and most common support—material to which the paint is applied—for watercolor paintings is paper. Other supports include papyrus, bark papers, plastics, vellum, or leather, fabric, wood, and canvas.