Fact 1: Condensing means changing from a gas into a liquid by reducing heat energy.

Fact 2: Condensation involves molecules joining together with the release of water.

Given the two facts above, answer the question "What results in changing from a gas into a liquid by reducing heat energy?" with the following options: 
- exposure to cold
 - degrees celcius
 - molecules joining together
 - rain or sun shine
 - Warm air moving into cold air
 - molecules separating
 - molecules becoming nothing
 - molecules exploding


 

   molecules joining together      