Which step involves water changing from a liquid to a gas

Water changing from liquid to gas is caused by heat. When water is heated, the molecules begin to vibrate faster and spread out further, this results in the water changing from liquid to a steam.

There are two steps: condensation and precipitation. Condensation - First, the water vapor condenses. Condensation is the change of water from gas form to liquid form. When water vapor in the atmosphere loses heat and cools down, condensation happens.