Anomalous behaviour of water refers to contraction of water when it is heated between \(0^{\circ} C\) and \(4^{\circ} C\). When water is heated, it contracts between \(0^{\circ} C\) and \(4^{\circ} C\) and thereafter, it expands like most other liquids which expand when heated.eatures of anomalous expansion of water
- It occurs between \(0^{\circ} C\) and \(4^{\circ} C\)
- Water has minimum volume at \(4^{\circ} C\) and maximum density at \(4^{\circ} C\)
- It has biological importance on the preservation of aquatic life during cold weather