on January 27, 2022, 9:30 AM
Class 1 Science Chapter 9 We Need Air in English Medium updated for new academic session 2024-25 free PDF download. Here a Student of Class 1 know the importance of Air we use. The entire chapter is prepared using simple terms of Science definition and explanation. All the Student of Grade 1 can understand easily.
Class 1 Science Chapter 9 Solutions
Class 1 Science Chapter 9 We Need Air Solutions
NCERT Books for Class 1
Air:
Air is all around us. All living things need air. We cannot see air but we can feel it when it moves.
Wind:
Fast moving air is called the wind. The wind makes leaves and branches of the trees move. A strong wind can even uproot trees. Fast and strong wind cause a storm.
Take a balloon Air fills up the space inside the balloon. See how it become bigger and bigger. So, we can say that air takes up space.
Air has Weight
Take an empty balloon and weigh it, fill the same balloon with air. Air you will see air is heavier than empty balloon, this shows that air has weight.
Air has many Uses
Air is very useful in our daily life. People, animals and plants need air to breathe. Air helps boat to sail. It helps gliders to move.
Wind moves the blades of a windmill. Air keeps the fire burning. Air is needed for lighting a fire and to keep it burning. Air can be filled into footballs, swimming tubes, cycles and motor vehicle tyres.
Important Points:
1. We cannot see air but we can feel it.
2. Moving air is called wind.
3. Air has weight. It occupies space.
4. Moving air is called wind.
5. Air is necessary for burning also.
6. Air and wind are useful to us.
Select the correct option from MCQs:
1. All _____________ things need air.
(a) Dead
(b) Plastic
(c) Living
2. We need air for _____________.
(a) Running
(b) Breathing
(c) Dancing
3. _____________ is necessary for burning.
(a) Air
(b) Water
(c) Fuel
4. Fast moving air is called _____________.
(a) Wind
(b) Storm
(c) Cyclone
1. C
2. B
3. A
4. B
Fill in the blanks with the given words: (feel, force, wind, breath, air space, weight)
1. We can ____ air.
2. Moving air is called _____.
3. Fire also need _____ to burn.
4. All living things need air to ____.
5. Air occupies ____, _____ and ____.
Answers:
1. Feel
2. Wind
3. Air
4. Breath
5. space, weight and force
Match the following:
| Column-1 | Column-2 |
|---|---|
| 1. Air | (a) moving air |
| 2. wind | (b) air takes up space |
| 3. balloon | (c) fast and strong wind |
| 4. storm | (d) all around us |
Answers:
1. D
2. A
3. B
4. C
How can we prepare Class 1 Science chapter 9 easily?
This chapter is about air and need of that. Practically we can feel it. Try to stop breathing for short. In summer season we run fan, which provide air flow. There are so many other uses of air.
Is Class 1 Science chapter 9 interesting?
Student can collect list of uses of air either in normal life or industrial as well as commercial. Innovation on air/wind base machines is an interesting subject.
How much important Class 1 Science chapter 9 is?
Chapter has two aspects one how important is air for us, because without air we could not breath this is first and most essential thing for all living species. There are so many other uses of wind energy. This chapter is useful.
