Step 1: Understanding Slip Casting.
Slip casting is a process in which clay is made into a liquid, or "slip," which is poured into a mold. The slip is then allowed to harden into the desired shape. This technique is commonly used to make intricate or large pottery pieces.
Step 2: Analysis of options.
- (1) Press casting: Incorrect, press casting involves pressing clay into a mold, not making it liquid.
- (2) Throwing: Incorrect, throwing refers to shaping clay on a pottery wheel, not a casting technique.
- (3) Slip casting: Correct, slip casting involves making clay liquid and slippery for use in molds.
- (4) Slab casting: Incorrect, slab casting involves working with flat pieces of clay, not liquid clay.
Step 3: Conclusion.
Thus, the correct answer is (3) Slip casting.