Question

In physics what do mean by anomalous behaviour of water

Answer 1

Anamolous behavior of water means that when we cold a bottle of water it contract till 4℃ then from 4℃ to 0℃ it expands this behavior of water is known as anamolous behavior of water

Answer 2

The anomalous expansion of water is an abnormal property of water whereby it expands instead of contracting when the temperature goes from 4oC to 0oC and it becomes less dense. The density becomes less and less as it freezes because molecules of water normally form open crystal structures when in solid form.