This lecture introduce on Condensed Water Vapor. Condensation is the change of water from its gaseous form (water vapor) into liquid water. Condensation generally occurs in the atmosphere when warm air rises, cools and looses its capacity to hold water vapor. As a result, excess water vapor condenses to form cloud droplets. This lecture briefly focus on what is water evaporates, and the water vapor condenses onto dust particles. This is how freezing rain and hail are different and how they are alike.