Is Air Present Everywhere Around Us

Introduction:

  • Air is an essential component of our environment.
  • It surrounds us everywhere, even though we can’t always see it.

Air in Different Environments:

  • Air exists in various forms and compositions depending on the environment.
  • In cities, air may contain pollutants from vehicles and industries, affecting its quality.
  • In rural areas or natural environments, air tends to be cleaner and fresher.

Air Is Present Everywhere Around Us

  1. Air can be found all around us (though we cannot see it).
  2. Even containers and vessels that appear to us to be empty are filled with air. An empty bottle, for example, is not empty; it contains air. Even when we turn
    an empty bottle upside down, there is still air inside. We can demonstrate that air occupies space and that even an empty bottle contains air.
  3. Plants need air for photosynthesis, which produces oxygen and helps maintain the balance of gases in the atmosphere.

Uses of air in atmosphere in daily activities

1. The moving air helps us to fly a kite and makes our clothes dry faster.
2. The husk is separated from the wheat grains during winnowing by the moving air.
3. Children often play with a ‘Firki’ (wind—vane) that rotates when the moving air passes over its top. Children hold it in their hands and sometimes adjust the direction of the firki with moving air or blow air on its top to make it rotate.

4. Wind helps us in many ways like moving wind-mills, generating energy, pollination, cooling of
temperature,

How Do We Feel the Air?

Though we cannot see the air, we can feel its presence when it moves. Moving air is called wind. Some of
the ways we can feel air are:

  1. In the rustling of leaves when the wind blows.
  2. In fluttering of the pages when the fan is switched on.
  3. On our face and arms when we move or sit under a moving fan.
  4. When the branches of a tree sway in the wind.
  5. In the forward-backward movement of clothes that are left to dry.

Importance of Clean Air:

  • Clean air is essential for human health and well-being.
  • Pollution and contaminants in the air can lead to respiratory problems, allergies, and other health issues.
  • It’s important to take measures to reduce air pollution and preserve the quality of the air we breathe.

Let’s practice!