Question

A beaker is completely filled with water at $4^{o}C$. The water will overflow if it is:-

Answer 1

Water density is maximum at $4^{o}C$, so whether it is cooled to temperature below $4^{o}C$ or warmed to temperature above $4^{o}C$, in both the cases its density will decrease. In other words it will expand and overflow in both the cases.