Why Does Ice Float?

Ice cubes float in your drink but wait, isn't solid supposed to be heavier

than liquid? Water is weird in the best way. When it freezes,

it breaks the usual rules of density. In liquid water, molecules move freely

and stay close together. But as it freezes, they lock into

a shape that takes up more space. More space means less density so

the ice becomes lighter than the liquid it came from. This small trick

of physics keeps lakes from freezing solid. Ice forms on top,

acting like a blanket and protecting life below. So next time your ice floats