Which statement about clay is accurate?

• A. Clay is a finished hard stone.
• B. Clay is plastic and workable when wet and fired to ceramic.
• C. Clay cannot be fired.
• D. Clay is a transparent material used for glass making.

Answer: (B)

Clay is valuable because it is plastic and workable when wet, meaning its water content lets the particles slide past one another so you can mold, coil, or form it into shapes. When you shape clay and then dry and fire it in a kiln, the remaining water is driven off and the mineral particles fuse together, creating a hard, durable ceramic material. This combination—soft and moldable while wet, then turning into ceramic when fired—captures why clay is used for pottery and sculpture. The other statements don’t fit: clay isn’t a finished hard stone, it can be fired to become ceramic, and it isn’t a transparent material used for glass making (glass is made from silica and related materials, not clay).