2006-08-24 19:48:04 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
the air bubbles in the ice expand and cause it to crack
2006-08-24 19:51:12 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It is actually the uneven distribution of temperature that causes the ice to crack. If the whole ice cube warmed up at the same rate, it would not crack. When you put very cold ice in warm water, the outer surface warms first before it melts, and expands. The inner parts of the ice stay cold and do not expand. This builds up internal stresses that crack the ice. This is why the ice has to be really cold to crack. If it's just below freezing temperature, the outer portion will melt before it can expand, and there won't be much temperature difference between the inside parts and the outer parts.
2006-08-25 02:59:15 · answer #2 · answered by gp4rts 7 · 1⤊ 0⤋
Freezing causes the water to contract in volume, and be smaller than the same volume of liquid. When placed in a warmer liquid, the outside of the ice expands as it melts. As the periphery expands, but the interior remains frozen, there is stress placed on the ice faster than it can equilibrate, and this causes cracking.
2006-08-25 02:57:25 · answer #3 · answered by Dr. Dave 3 · 0⤊ 0⤋
The Delta Temperature against Time at the outer ice and center point of the Ice is too great that causing different rate in expansion.
2006-08-28 18:20:46 · answer #4 · answered by nuwanusa 5 · 0⤊ 1⤋
The Delta Temperature against Time at the outer ice and center point of the Ice is too great that causing different rate in expansion.
2006-08-25 03:09:31 · answer #5 · answered by Mr. Logic 3 · 0⤊ 1⤋
the molecules expand causing ice to crack
2006-08-25 02:51:42 · answer #6 · answered by Anonymous · 0⤊ 0⤋
thermal stress cause crake.surface layers expand while interior layer is cold ano do not expand . we say this thermal stress.
2006-08-25 02:56:55 · answer #7 · answered by eshaghi_2006 3 · 0⤊ 0⤋