Not to start an argument, but I have to disagree with the statement that ice cannot get below around 30º. I do agree that it is a great insulator and has a very high specific heat(how much energy it takes to raise or lower a unit of something by a unit of temperature). This does not mean it cannot get colder. See this diagram of water phases at different temperatures and pressures:
Conversions:temperature: 32ºF=273 K
Pressure: 1 atm(standard pressure at sea level) = 0.101325 MPa
So you can see that it is very possible to have ice at lower temperatures given enough thermal energy or lack thereof will cause the heat to be stripped away thus leaving it colder. Hope everyone enjoyed this lesson in Thermodynamics.
Under extreme conditions yes. I have done the block test in school 2 times. The second was to back up the first's results. We got 30 degrees both times at 10 degree temps for 24 hours.
