Why does ice float on liquid water?

Water in a solid state is less dense than when in a liquid state.

Water in a solid state is more dense than when in a liquid state.

The oxygen atom makes it float.

The hydrogen atom makes it float.

Question

Why does ice float on liquid water? 



Water in a solid state is less dense than when in a liquid state. 



Water in a solid state is more dense than when in a liquid state. 



The oxygen atom makes it float. 



The hydrogen atom makes it float.

anonymous · Answer

I'm pretty sure its A.

australopithecus · Answer

Yes it is A, because the way in which water hydrogen bonds in ice and water http://www.uic.edu/classes/bios/bios100/lectures/02_15_hydrogen_bonding-L.jpg