NCERT Solutions for Class 4 EVS Chapter 12

NCERT Solutions for Class 4 EVS Chapter 12 - Changing Times

NCERT Solutions for Class 4 EVS Chapter 12 provide students with the most reliable study material for this chapter. Also, for last-minute exam preparations, NCERT Solutions are considered one of the best resources. These NCERT Solutions for Class 4 EVS Chapter 12 are prepared by the highly experienced teachers at Vedantu, in a simple, easy-to-understand manner. These NCERT Solutions provide a comprehensive study guide for students. They can learn the answers given in the NCERT Solutions PDF to get a clear understanding of the topics covered in this chapter. This will help them secure good marks in the exam.

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Question and Answers

1. Talk to any one of your grandparents or any other elderly person. Find out, when she or he was eighty-nine years old –

a. Where did she or he live? Name that place. 

Ans: When I spoke with my grandma, she informed me that she used to live in Jabalpur when she was 8-9 years old.

b. From what material was her or his house-made? 

Ans: Her home was constructed of bricks, cement, and other materials.

c. Did they have a toilet in their house? If not, where was it? 

Ans: They did, in fact, have a toilet in their home.

d. In which part of the house was food cooked?

Ans: In her home, she had a wide-open kitchen. Only there was food prepared.

e. A lot of mud was used when Chetandas' house was made. Why?

Ans: Chetandas' house was built with a lot of mud since it is an insulator and protects the dwelling from cold and heat.

2. The people who used the toilets did not clean them. Discuss.

Ans: People who used the restrooms did not clean them because they thought it was a low-value chore, which is incorrect. 

3. Is there a toilet in your house? Who cleans it?

Ans: Yes, there is a toilet in my residence. It is cleaned by my mother and father.

4. What materials have been used in making your house?

Ans: Bricks, cement, iron rods, sand, and other materials were utilised to construct my home.

5. Find out the material from which your friend's house is made? Is there any difference? Write about it.

Ans: My Shimla friend's house is composed of wood, glass, iron, and other materials.

6. What kind of house do you think Chetandas' grandchildren will live in?

Ans: The grandchildren of Chetandas will dwell in a house composed of bricks, cement, iron, and other materials.

7. Where would you like to live when you grow up? What kind of house would you like?

Ans: I'd prefer to live somewhere cold, like Shimla or Kashmir. I'd like to live in a vast house built of wood, glass, stones, iron, and other natural materials.

8. You had written about the things that your grandparent’s house was made of. Have some of that material been used in your house? Name them.

Ans: Yes, some of these materials, such as bricks and cement iron, were utilised in my home as well.

9. People are given names according to the work they do. For example, a person who works with wood is called a carpenter

In your place, what do you call a person who works with wood?

Ans: A person who works with wood in my area (Punjab) is known as a 'tarkhan.'

10. What kind of work is being done by different people here?

(Image will be uploaded soon)

Ans: A building construction needs many kinds of people. Every worker or labourer is given a certain job seeing his/her capability. In the image provided in the question, various people are engaged in construction activity.



Person called

Rooftop Construction



Fitting of electric wires

Drill Machine Screwdriver


Cement and sad mixing



Fitting of pipes

Pipe-cutter Wrench



11. What tools are they shown using in the picture? Write them in the given table.



Work done

Tools Used

What is the person called?


Carry brick, stones, cement etc.

Large Bowl, wheel cart



Electrical fittings

Wires, screwdriver



Taps, Pipeline fittings

Cutters, screwdrivers



Mixing cement and sand

Hammer, iron pans


12. With your teacher or someone from home, go to a place where a building is being constructed. Talk to the people working there and find out answers to these questions.

a. What is being built there? 

Ans:  A huge structure is being constructed there.

b. How many people are working there? 

Ans: There were 50 persons employed there.

c. What kind of work are they doing? 

Ans: Many people work as masons, labourers, and engineers.

d. How many men and women are there? 

Ans: There are ten women and four males present.

e. Are any children working there? What are they doing? 

Ans: No, there are no youngsters working there.

f. How much money do these people get paid daily? Ask from any three different people. 










g. Where do these people live?

Ans: These people are living in temporary rooms or tents near the construction site.

h. What are the materials being used for making the building? 

Ans: Bricks, cement, sand, iron, and other materials are utilised to construct the structure

i. Try and guess how many trucks of bricks and bags of cement will be used for making the buildings

Ans: The building will be constructed with 10 trucks of bricks and 50 bags of cement.

13. How does the material reach the building site? (By truck, handcart, any other vehicle) List them.

Ans: Trucks transport materials to the construction site.

Water is transported through tanks

Cement, bricks and sand is transported through trucks

Small quantity bricks or sand are moved by handcart.

14. Find out the price of

One bag of cement __________ 

One brick _________ 

One truck of sand __________

Ans: Cost of one bag of cement- 300/- 

Cost of one brick – 65/- 

Cost of one truck of sand- 25000/-

15. Over the sixty years, different materials were used at different times in Chetandas’ house. List these in the correct order.

(Image will be uploaded soon)

Ans: Then,





Cow dung 




Baked bricks 

Marble chips 

Coloured tiles 

Lintel Cement 

Cement Marble

NCERT Solutions Class 4 EVS Changing times- Free PDF Download

The last-minute revision for Class 4 EVS Chapter 12 is now easy for students as NCERT Solutions Class 4 EVS Chapter 12 is available in PDF format on Vedantu.  All students can download these NCERT Solutions for free from Vedantu and refer to them offline. Our subject experts have covered all the questions and answers given in the exercise of Class 4 EVS Chapter 12 in these NCERT Solutions. They have drafted these solutions keeping in mind a holistic approach to learning this chapter for the young students of Class 4.

NCERT Solutions Class 4 EVS 

Chapter 12 -Changing Times 

NCERT Solutions Class 4 EVS Chapter 12 Changing Times covers an engaging topic. Learning the chapter will help students to understand how a building is constructed. The processes of construction are also well-addressed in this chapter. The chapter includes a lot of fun activities like pictorial representations, matching columns, passages, etc., which helps students to grasp the concept of the chapter easily. The students gain deep knowledge of the concept discussed in this chapter by solving and practising the exercises. Our subject experts have worked hard so that the NCERT Solutions Class 4 EVS Chapter 12 is made discernible and understandable for every student. 

Class 4th EVS Chapter 12 Marks Weightage

Class 4th EVS Chapter 12 is quite an interesting and important chapter covered in the Class 4 syllabus. Thus, choosing to study from our latest NCERT Solutions will help students to understand the chapter and secure good marks in exams. They can download and refer to these NCERT Solutions after going through the chapter for a better understanding. Short answer type questions and long answer type questions are asked from this chapter in the exam.

All the short and long answer type questions, given in the exercise of this chapter are solved in the NCERT Solutions. These solutions are prepared by our experts to make it simpler to revise the chapter as well as learn the answers for the exam.

Why are NCERT Solutions for Class 4  EVS Chapter 12 Important?

  • The precise answers provided in the NCERT Solutions Class 4 Chapter 12 facilitates quite a better grasp for answering questions in the exam among the students.

  • Students get the skill to think out of the box and analyze a question from the examination point of view by referring to these NCERT Solutions Class 4 EVS Chapter 12.

  • These NCERT Solutions have been organized and explained systematically to save the revision time of students so they do not face any difficulty during the exam preparation. 

FAQs (Frequently Asked Questions)

1. The People Who Used the Toilets Did Not Clean them. Discuss.

People from the slum were not allowed to use the toilets. They were just asked to clean the toilets. Chetandas told that the people of the upper caste were using the toilets but they did not want to clean the toilets by themselves because they thought that it is an inferior task. They feel that it is one of the dirty jobs. The people of the slum were called to clear up the toilets properly and perhaps also take away all the waste materials. However, the people of the slum were never allowed to enter the house of the people belonging to the upper caste. 

2.What Kind of House Do You Think Chetandas’s Grandchildren will Live in?

We assume the grandchildren of the Chetandas will live in a skyscraper or in a multi-storeyed building which will have elevators. The multi-storeyed building or the skyscraper is made up of material such as cement, steel, concrete, ceramic tiles, iron rods, bricks, etc. The windows, as well as the doors of the building, are made of glass and aluminum and wood are also used in making doors and windows. They will live in a metropolitan city and their house will be quite strong, modern and well-designed.

3. How can students take advantage of Vedantu’s NCERT Solutions while studying Class 4 EVS Chapter 12 “Changing Times”?

Students can use Vedantu's NCERT solutions for Class 4 EVS Chapter 12 to help them in their studies. Here is how you can use them for exam preparation.

  • Read the NCERT chapter thoroughly.

  • Try solving the NCERT questions yourself first

  • Vedantu also provides added explanations for the chapter if you want clarification on a certain topic.

  • Finally, refer to Vedantu’s solutions for clear and comprehensive answers to NCERT questions.

4. How to download Vedantu’s NCERT Solutions while studying Class 4 EVS Chapter 12 “Changing Times”?

Vedantu's NCERT solutions for Class 4 EVS Chapter 12 can be downloaded in a few simple steps:

  • Visit Vedantu’s page for the NCERT solutions of this chapter.

  • You will be taken to the page containing the NCERT solutions for the required chapter. Scroll down and select the "Download PDF" option.

  • On the following page, you will be provided with the link to download the PDF hassle-free.

  • These solutions are absolutely free and can also be downloaded from the Vedantu mobile app. 

5. What changes has Chetandas seen over the years?

Chetandas is around 70 years old and in the past 60 years, he has seen many changes around himself. When he came to Delhi from Pakistan, he built a simple house using mud and cow dung. As the years progressed, his house underwent several changes. His house was renovated multiple times using materials like iron, cement, wood, unbaked bricks and then baked bricks, tile, lintel, and marble chips. His surroundings changed from simple houses to cemented houses, and then to high-rise buildings.

6. How has the construction of buildings evolved over time?

In the chapter "Changing Times", we see how construction has evolved in the last few decades through the renovation of Chetandas' house. His house in Delhi was initially made with mud and clay. It was then later renovated using cement, iron, wood, and unbaked bricks. A toilet was also added. A few years later, his house was renovated using baked bricks, lintel marble chips, and cement. The kitchen was also expanded. 

7. What is your takeaway from the chapter “Changing Times?”

The chapter "Changing Times" is engaging and intriguing. It gives a glimpse of the ever-changing times to the students. The students learn that with evolving technology, the various construction ways have also evolved swiftly. The students are given a glimpse of how houses used to be in the past, how they are in the present, and how they may be in the future. Students of today can expect their surroundings to change at an even faster rate than they did for Chetandas.

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