Samacheer Kalvi Class 3 Science Term 3 Chapter 3 Air Question Answer
Samacheer Kalvi Class 3 Science Term 3 Chapter 3 Air Question Answer Solution in this page. Students of Tamilnadu Board will get here Air Chapter’s Exercise Question Answer Solution with Additional Questions and Answer.
a.) Write true or false from the following statements.
1.) Air occupies space but has no weight. False
2.) Air is colorless. True
3.) Air has definite shape. False
b.) If we fill air in the …ball.., it will change its shape.
c.) Clean air is required for good health.
Sl. No Actions Inhalation/exhalation
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1 ) Air moves out of the lungs Exhalation
2) Air goes into the lungs Inhalation
3) Chest raises up Inhalation
4) Chest raises down Exhalation
Match the following,
a.) Breeze- Gentle wind
b.) Strom- Strong wind
c.) Gale- Very strong wind
Fill in the blanks,
1.) Gentle air is called ….breeze..
2.) We get electricity from the wind using …windmill…
3.) The air that flows from the land towards the sea is ….land breeze..
4.) Sea breeze is the air moving from..sea.. towards land.
What will you do during disaster?
a.) I will not watch TV when it rains heavily.
b.) I will follow the warning.
c.) I will not stand under a tree when heavy wind blows.
I.) Fill in the blanks using the given words.
(air, weight, raises, lungs, inhale)
1.) Air has _________ .
2.) Things need __________ for burning.
3.) The process by which we breathe in air is known as ________.
4.) The organ that helps us to breathe is __________.
5.) When we breathe in air, the chest _________ up.
Answer
1.) Weight
2.) Air
3.) Inhale
4.) Lungs
5.) Raises
II.) Write ‘T’ if True and ‘F’ if False.
1) Air is nowhere.
2.) Air fills the empty space.
3.) Clouds move because of the movement of air.
4.) A very strong wind is called gale.
5.) We release oxygen during breathing.
Answer
1.) F
2.) T
3.) T
4.) T
5.) FIII. Circle the odd one and answer the question.
1.) Balloon, Cycle tube, Football, Cricket ball
Why is it different from the rest?
2.) Kite, Balloon, Stone, Feather,
Why _________ differs from the rest?
Ans- Stone
IV.) Answer the following.
1.) What are the properties of air?
2.) Write the use of windmill.
3.) What is breathing?
4.) Write the processes involved in breathing.
5.) Write the types of wind based on the speed of air.
6.) Differentiate between land breeze and sea breeze.
Answer
1.) Properties of air,
It has no definite shape and color.
It has weight.
It occupies space.
It is invisible.
2.) Windmill is used to generate electricity.
3.) All living things need air for their survival. The cycle process of inhalation and exhalation is called breathing.
4.) Human breath in and without through lungs. Inhalation is the process of taking the air inside and exhalation is the process of relaxing the air outside. This cycle process is called breathing.
We take Oxygen and release carbon dioxide gas while breathing. When we breathe in our chest raise up and when breathe out our chest lowers down.
5.) There are three types of wind based on the speed of air.
Breeze
Storm
Gale
6.) Difference between land breeze and sea breeze,
Sea breeze
It blows from the sea towards the land.
Sea breeze blows during day time.
Land breeze
It blows from the land towards the sea.
It blows during night time.
Additional Questions & Answers-
1) Write the correct statement.
1) Air is not a natural resource.
2) We can live without air.
3) Air has no weight.
4) Air is visible.
5) Air cannot flow everywhere.
Ans-
1) Air is a natural resource.
2) We cannot live without air.
3) Air has weight.
4) Air is invisible.
5) Air can flow everywhere.
2) Write the answer in one line.
1) Strom – Strong wind is called Strom.
2) Gale – A very strong wind is called Gale.
3) Breeze – A gentle wind is called Breeze.
4) Wind – Moving air is called Wind.
5) Anemometer – Speed of the wind is measured using an instrument called Anemometer.
3) Make Sentences-
1) Air- We cannot survive without air.
2) Breeze- What an amazing breeze!
3) Breathing- We takes oxygen and release carbon dioxide while breathing.
4) Health- Clean air is required for good health.
5) Weight- Air has weight.