a gas that makes up 78% o Earth's atmosphere

water in its gas state

to pass form one place to another

the change of state from a liquid to a solid

a gas that makes up 21% of Earth's atmosphere

the change of state from a gas to a liquid

a measure of how hot or cold matter is

Gold melts at 80 degrees Celsius

Water is the only liquid that evaporates

Heat causes liquids to evaporate

An ice cube left out of the freezer in a cup will never melt.

We see condensed water as clouds, fog, and dew.

A pebble will never melt

Materials all melt at the same temperature

Water vapor condenses both outside and inside

Water melts at 0 degrees Celsius and freezes at 0 degrees Celsius