Question

Write the name of the phenomenon shown in the diagram and briefly explain it.

Answer 1

Name of the phenomenon: Regulation

Explanation: Regelation is the phenomenon where ice melts under applied pressure and immediately refreezes when that pressure is removed. In the diagram, the heavy weights cause the thin wire to exert high pressure on the ice, lowering its melting point and melting it into water. The wire sinks through this water. As soon as the wire passes, the pressure on the water above it is released, and it instantly refreezes, allowing the wire to pass completely through without breaking the ice block.