Evaporation And Condensation

key notes :

Evaporation:

  1. Definition: Evaporation is the process by which a liquid changes into a gas.
  2. Example: When you leave a puddle of water in the sun, it dries up because of evaporation.
  3. Factors affecting evaporation:
    • Temperature: Higher temperatures make evaporation happen faster.
    • Surface area: Larger surface areas allow for more evaporation.
    • Wind: Wind can help speed up evaporation by carrying away the water vapor.
  4. Evaporation in daily life: It happens when clothes dry on a sunny day, when water boils, or when a wet surface dries.

Condensation:

  1. Definition: Condensation is the process by which a gas changes into a liquid.
  2. Example: When warm, moist air comes into contact with a cold surface like a glass of cold water, water droplets form on the outside of the glass.
  3. Factors affecting condensation:
    • Temperature: Cold temperatures make condensation happen faster.
    • Humidity: High humidity levels increase the likelihood of condensation.
  4. Condensation in daily life: It happens when you see dew on grass in the morning, when steam from hot water forms water droplets on a mirror, or when clouds form in the sky.

The Water Cycle:

  1. The water cycle is the continuous movement of water on Earth through evaporation, condensation, and precipitation.
  2. Water evaporates from oceans, lakes, and rivers, forms clouds through condensation, and falls back to Earth as rain, snow, or hail through precipitation.
  3. The water cycle helps maintain Earth’s water balance and is essential for life on our planet.

Importance of Evaporation and Condensation:

  1. Weather: These processes play a crucial role in weather patterns and the formation of clouds and precipitation.
  2. Water Conservation: Understanding evaporation and condensation helps us conserve water by using it efficiently.
  3. Climate: They also influence climate patterns by regulating the distribution of heat and moisture in the atmosphere.

Summary:

  • Evaporation is the process of turning liquid into gas, while condensation is the process of turning gas into liquid.
  • They are important natural processes that affect our weather, water cycle, and daily life.
  • Learning about evaporation and condensation helps us better understand the world around us and how to conserve resources.

Let’s practice!