Liquid gold is poured into molds and cools to become solid bars. The gold is .
Liquid nitrogen becomes a gas when it is poured out of its container. The nitrogen is
.
Solid iron is heated to high temperatures so that it becomes a liquid. The iron is
.
Water vapor in the air becomes tiny liquid droplets that form fog. The water is
.
In a very cold cryogenic freezer, solid oxygen forms on the walls from the oxygen gas in the air. The oxygen is
.
In the high desert, snow changes to water vapor without becoming liquid water. The snow is
.