How does vapor form into a cloud?

Vapor forms into a cloud through a process called condensation. When warm, moist air rises, it cools as it ascends, leading to a decrease in temperature. As the air cools, the water vapor it contains reaches its dew point and condenses into tiny water droplets or ice crystals, which cluster together to form clouds. These droplets are small enough to remain suspended in the air, creating the visible cloud structure.