Water expands as its temperature drops below 4ºC, and so is less dense than water above this
temperature. This is why ice floats. Things that float displace the amount of liquid they float in
so that the mass of the volume of liquid displaced is equal to the mass of the floating object. This
means that when an ice cube melts while floating in a glass of water at constant temperature, the
depth of the water in the glass will not change. Explain then, why global warming and the feared melting of icebergs, is connected with rising sea level.
2006-10-23
00:16:29
·
7 answers
·
asked by
alan_warr
2