Sand casting is most accurately described as?

Sand casting is most accurately described as a technique of using a pattern to create a mold in sand. In this process, a pattern made from a material such as metal or plastic is placed in a mold box, which is then filled with sand. The sand is compacted around the pattern to capture its shape, and after removing the pattern, a cavity remains that can be filled with molten metal or another material. This technique is widely used in manufacturing and metalworking for creating complex shapes and parts, making it a vital method in industrial processes.

The other options describe processes in different areas: attaching layered fabrics pertains to textile arts, carving designs into wood relates to woodworking and sculpture, and stitching yarn into fabric refers to textile crafts like knitting or crochet. Each of these options represents distinct methods and techniques that do not involve the mold-making characteristics specific to sand casting.