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Evaporation and Condensation Video Lecture | Crash Course for Class 6

FAQs on Evaporation and Condensation Video Lecture - Crash Course for Class 6

1. What is evaporation?
Ans. Evaporation is the process by which liquid water turns into water vapor or gas. This occurs when the molecules in the liquid gain enough energy, usually from heat, to break free from the surface and enter the air as vapor. Evaporation happens at any temperature, not just when water boils.
2. What factors affect the rate of evaporation?
Ans. Several factors influence the rate of evaporation, including temperature, surface area, humidity, and air movement. Higher temperatures increase the energy of water molecules, leading to faster evaporation. A larger surface area allows more molecules to escape, while lower humidity levels and increased air movement can also enhance the evaporation process.
3. What is condensation?
Ans. Condensation is the process by which water vapor in the air cools down and changes back into liquid water. This occurs when the air temperature drops, causing the water vapor to lose energy and form tiny droplets of water, which can be seen as dew on grass or fog in the air.
4. How do evaporation and condensation work together in the water cycle?
Ans. Evaporation and condensation are crucial components of the water cycle. Water evaporates from bodies of water, such as lakes and oceans, into the atmosphere. As the water vapor rises and cools, it condenses into clouds. When the droplets in the clouds become heavy enough, they fall back to the ground as precipitation (rain, snow, etc.), completing the cycle.
5. Why is evaporation important for the environment?
Ans. Evaporation plays a vital role in regulating temperature and maintaining the water cycle in the environment. It helps cool surfaces, such as lakes and rivers, and is essential for the formation of clouds, which bring rain. Additionally, evaporation helps in transporting moisture, which is crucial for plant growth and maintaining ecosystems.
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