Write in one word:

Water in the form of gas

(a)  

Write in one word:

Change of water into water vapour and then to water again

(a)  

Write in one word:

Change of water into water vapour

(a)  

Write in one word:

Cooling of water vapour to water

(a)  

Write in one word:

Blanket of air surrounding the earth

(a)  

Write in one word:

State of the atmosphere at any given time

(a)  

Write in one word:

The force exerted by air

(a)  

Write in one word:

Movement of air from one place to another

(a)  

Write in one word:

Strong winds with rain

(a)  

Write in one word:

The life-giving gas in the air

(a)  

What are the gases present in air?

(a)  

What are the harmful substances that get added to the air?

(a)  

Name the three forms of water.

(a)  

What is the water cycle?

(a)  

What is weather?

(a)  

What causes changes in weather?

(a)  

Name the five seasons of the year.

(a)  

Factories should be built (a)   away from houses.

Air also contains harmful substances like __________ and __________

(a)  

Gases present in air are ___________, _______________ and ____________.

(a)  

97% of water on Earth is (a)   water.

We get ground water from (a)  

Seasons are caused due to ________ of the Earth around the ________

(a)  

Gentle wind is called (a)   .

Days are short during the (a)   season.

When water vapour cools down it forms (a)   .

The heat of the (a)   changes water in rivers, lakes and seas into water vapour.

Clouds are made up of small _______ of water. When these become big, they fall down as _______.

(a)  

(a)   is all around us.

(a)   exists in three forms – liquid, gas and solid.

(a)   is the gas in air that we breathe in.

The solid form of water is called (a)   .

The (a)   season has long days.