This term means ';compacted and heavy';;ice is less ____ than liquid water.?

Ice is less compact or less dense than liquid water.This term means ';compacted and heavy';;ice is less ____ than liquid water.?
Dense?This term means ';compacted and heavy';;ice is less ____ than liquid water.?
ice is less dense than water because the density of water is 1gram per cubic centimeter and the densitys of and ice cube is about .43 grams per cubic centimeter