At what low temperature after water contracts, does it start expanding ?

Answer 1

Water reaches a density maxima at 4C.

Answer 2

It is something like 4 degrees Celsius, that is when the polar molecules start slowing down enough align where the positve side of one molecule is attracted to the negative side of another. This causes some expansion. Just think, if water did not expand when it became ice, then ice would sink to the bottom of the ocean and never melt; and eventually most of the earth would be covered in ice, not water! So, this feature of water makes life possible on earth!

Answer 3

Water will contract as it gets colder like most every other liquid until about 4 degrees Celius. Between 0 and 4 degrees it will begin to expand as the molecules begin to align in a crystal like formation and thus form ics.

Answer 4

3.9 degrees C. At room temperature, liquid water becomes denser with lowering temperature, just like other substances. But at 4 °C, just above freezing, water reaches its maximum density, and as water cools further toward its freezing point, the liquid water, under standard conditions, expands to become less dense. The physical reason for this is related to the crystal structure of ordinary ice, known as hexagonal ice Ih.

Answer 5

Water starts expanding at 4 degrees centigrade and it expands faster the lower the temperature goes.

Answer 6

does it ever contract--i thought that as soon as the ice crystals start to form it just starts expanding.

Answer 7

it never expands...the contracting makes it expand at freezing point 32

Answer 8

When it starts freezing at 32 degrees F

Answer 9

0 C

Once it turns into a solid, it begins expanding.