When I take ice out of the freezer and put it in water why does the ice crack it always does it?
Thanks:)

Drastic change in temperature splits the bonds between water molecules

Well yes it is the drastic change in temp but the bonds split at boiling. It cracks because there is a sudden expansion in the volume of the cube when it hits the water.

I'm not sure about the expansion, ballenger. Surely if anything it shrinks.

When you freeze water it expands, and when you put it into the warm watter it gets larger and creates a vacuum, thus sucking in air quickly, but to get the air inside little cracks have to form to let it through... obviously

What gets larger??

I think he is saying the ice cube gets larger which is roughly what I was saying. As water temp lowers it's volume decreases but then increase to more than the original state just as it frezes. When the cube is dropped into a warmer liquid the ice crystals expand and fracture.

I still don't get it. Water shrinks with increasing temp up to 4 deg C, right?