Which of the following materials can be molded or heated for sculpting purposes?

The ability to mold or heat a material for sculpting purposes is a defining characteristic of certain materials used in sculpture. Glass stands out as a material that can be heated to an appropriate temperature, allowing it to become malleable and reshaped into a variety of forms. Techniques like blowing, casting, or slumping enable artists to create intricate designs and shapes in glass, making it a versatile medium for sculptural works.

Other materials like wood, metal, and paper do not share the same properties in terms of being molded by heating. Wood can be carved but does not become malleable through heating in the same way as glass. Metal can be heated for processes like forging and casting, but it typically requires specialized equipment and techniques that differ from those required for glass. Paper can be manipulated through folding or cutting rather than molding with heat, which doesn’t align with the concept of being shaped through heating as seen with glass. Therefore, glass is uniquely suited for sculpting purposes through heating and molding processes.