After freezing, the water molecules are further apart than they were as liquid water. As solid ice, the molecules are further apart, arranged in an orderly pattern, and not able to slide past each ...

When the gas is cooled, the vapour condenses to make it a liquid again. Cool that liquid down even more, and it will freeze to make ... and boiling points. For example, sodium chloride (table ...

It turns out that any material, no matter what it is made of, can exist in one of three forms: solid, liquid or gas. These are categories ... at the everyday scale. Freezing, boiling, condensing ...