ART MEDIUM is a broad term that encompasses many different materials and techniques used to create art. INK, OIL, CLAY, oils, gesso, and oilcolor are all examples of art mediums. INK is a liquid or paste that contains pigments or dyes and is used to draw or write on a surface. OIL is a viscous liquid derived from plants or animals and is often used in painting. CLAY is a malleable material made from natural minerals and is used for sculpture and pottery. Oils are a type of paint made from pigments suspended in a drying OIL such as linseed OIL. Gesso is a white paint mixture made from a combination of pigment, chalk, and glue and is used as a primer for painting. Oilcolor is a type of paint made from pigments suspended in a drying OIL such as linseed OIL.