Condensation is the change of physical state of matter from gaseous phase into liquid phase. It is a process in which water vapor (gaseous form) in the air changes into liquid water when it touches a cooler surface. When water in the air comes in contact with a cold surface, it condenses to form water droplets. This phenomenon is known as condensation. The reverse of condensation is evaporation.

The water are evaporated by the sun and then the water vapour is changed into clouds.

Condensation: The Process of Changing Water Vapor into Water

Introduction:
Condensation is the process through which water vapor, which is the gaseous state of water, is converted back into liquid water. This occurs when the temperature of the surrounding air decreases. Condensation is an essential part of the water cycle and plays a crucial role in various natural phenomena, such as cloud formation, dew formation, and precipitation.

Explanation:
Condensation occurs when warm, moist air comes into contact with a cooler surface. The warm air contains water vapor, which is invisible to the naked eye. As the air cools down, it loses its ability to hold all the water vapor, causing the excess water vapor to condense into tiny water droplets.

Key Points:
Here are some key points to understand the process of condensation in more detail:

1. Temperature Change:
- Condensation occurs when there is a decrease in temperature.
- When warm air comes into contact with a cooler surface or air, it cools down, leading to condensation.

2. Formation of Water Droplets:
- As the air cools, the water vapor molecules slow down and come closer together.
- This causes the water vapor to change into liquid water droplets.

3. Cloud Formation:
- Condensation is responsible for the formation of clouds in the atmosphere.
- When warm, moist air rises and encounters cooler air at higher altitudes, the water vapor condenses to form clouds.

4. Dew Formation:
- During the night, when the temperature drops, the ground and other surfaces cool down.
- The moisture in the air condenses on these cooler surfaces, forming dew droplets.

5. Precipitation:
- Condensation is also involved in the formation of precipitation, such as rain, snow, sleet, or hail.
- When water droplets in the clouds continue to grow and become too heavy to be supported by the air, they fall to the ground as precipitation.

Conclusion:
Condensation is the process by which water vapor changes back into liquid water. It occurs when warm, moist air comes into contact with a cooler surface or air. Understanding condensation is essential for comprehending natural phenomena like cloud formation, dew formation, and precipitation.