form
A three-dimensional (3D) shape that has height, width and depth, like a sphere, a cube or a sculpture.
sculpture in the round
A free-standing sculpture you can walk all the way around and see from every side.
relief
A sculpture that sticks out from a flat background, so you see it mostly from the front. Low relief (bas-relief) sticks out only a little, like the picture on a coin.
texture elaboration
Adding texture to a surface by embossing, piercing, pinching, pressing, scoring or scraping.
matte
A dull surface that doesn't shine, like chalk or paper.
sheen
A soft shine on a surface, like a polished stone or satin ribbon.
collagraph
A print made from a plate built up with glued-on textured materials ("colla" comes from a Greek word for glue).
design challenge
A problem to solve with art materials, with rules, like "make a figure that stands up on its own."