From the density formular I know when water and ice have same mass, ice has bigger density than the water,and that also means ice has smaller volume than water. However, in the wearthing chapter,i got confuse about why after the water becomes the ice,the volume of the ice is bigger than the water, and then the ice break up. It has some conflict with the density fomular?

-- XiuLan Liu (Liu@oswego.edu), November 03, 2002