Air - Class 2 Science - New St. Mery English School

Air is all around us, even though we cannot see it. We need air to breathe and stay alive. Every plant, animal, and human being needs air. Air helps us to speak, fly kites, dry clothes, and move boats and windmills.

Air is made of different gases, and it gives us oxygen to breathe. Without air, life on Earth would not be possible. Even fire needs air to burn.

In this chapter, we will learn what air is, where we find it, and why it is so important for us. Let us explore the wonderful world of air and see how it helps us every day! 🌈 

Air - Class 2 Science - New St. Mery English School

What is Air?

Ans:- Air is a mixture of gases that surrounds the Earth and is necessary for all living things to breathe.

Features of Air

Air is all around us.
We cannot see air, but we can feel it.
Air helps us to breathe.
Plants, animals, and humans need air to live.
Air helps birds fly and helps fire burn.

What does air contain?

Ans:- Air contains many gases, water vapour, smoke, dust particles and germs

Write three properties of air.

Ans:- The three properties of air are

1- Air supports burning.

2- Air occupies space.

3- Air has weight.

How many types of air according to movement?

Ans:- There are four types of air according to movement.

1- Still air

2- breeze

3- wind

4- storm

What is still air?

Ans:- When air does not move, It is called still air.

What is breeze?

Ans:- gentle moving air is called breeze. It is soft and pleasant.

What is wind?

Ans:- Fast moving air is called wind.

What is storm?

Ans:- Very fast and strong air along with rain and thunder is called storm. It is very harmful.

Writ four uses of air?

The four uses of air are

1- We need air to breathe.

2- We need air for burning fire.

3- We need air to inflate balloons and tyres.

4- We need air for drying clothes.

What does make the air dirty?

Ans:- Smoke, germs and dust make the air dirty.

Why do we need fresh and clean air?

Ans:- If we breathe dirty air, We fall sick. To stay healthy, We need fresh and clean air.

How can we keep air clean?

Ans:- We can keep air clean by following ways

1- We should plant more and more trees.

2- Factories should be built away from the city to reduce the smoke in the air.

3- We should use public transport like bus, trains. It helps to reduce air polution.