Question

why ice floats on water although liquid have low density then water?

Answer 1

Water is one of the substances which expand on cooling(volume of water increases at 4 degrees Celsius). When volume increases, density decreases. So, we can say that there are exceptions to the rule that solids are denser than liquids.

Answer 2

This is because ice is also having small holes that are formed when ice is being freezed from water . These ice holes are more bigger than the water molecules . Due to this reason , ice holes are having trapped air which causes low density of ice and as we know when some ones density is lesser than water , it floats. Thus this is the reason for the ice floating in water .....

Hope it helpssssss