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NCERT Solutions for Class 4 EVS Chapter 12: Changing Times

Get latest NCERT Solutions for class 4 EVS Chapter 12 - Changing Times. Read these solutions for better understanding of the concepts and strengthen your basics.

Aug 14, 2019 17:06 IST
NCERT Solutions for Class 4 EVS Chapter 12: Changing Times

Class 4 EVS NCERT Solutions for chapter 12 - Changing Times are available here in detailed form. These NCERT solutions have been designed by subject experts to bring the most accurate and simple solutions for students so that they can easily understand the concepts used and become efficient to apply the same in other similar problems. Here, you will find solutions for all questions given on various pages of NCERT Class 4 EVS Chapter 12. All these solutions can also be downloaded in PDF format which you can use later during your course period.

NCERT Solutions for Class 4 EVS

Chapter 12 - Changing Times

Find out and Write

NCERT Page No. 98

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

(a) Where did she or he live?

(b) From what material was her or his house made?

(c) Did they have a toilet in their house?

(d) In which part of the house was food cooked?

(e) A lot of mud was used when Chetandas’ house was made. Why?

Answer.

(a) He lived in a village.

(b) His house was made of mud, straw, wood, rope and bamboo sticks.

(c) No, they did not have a toilet in their house.

(d) They had a separate kitchen to cook food.

(e) A lot of mud was used when Chetandas’ house was made because mud protects the house from cold and heat.

NCERT Page No. 100

Chetandas tells that people from the basti used to come to clean the toilets and take away the waste. They were not allowed to enter the house.

(a) The people who used the toilets did not clean them. Discuss.

(b) Is there a toilet in your house? Who cleans it?

Answer.

(a) The people who used the toilets did not clean them because they thought it to be a dirty and an inferior task.

(b) Yes, there is a toilet in our house. We clean itourselves.

NCERT Page No. 101-102

(a) What material have been used in making your house?

(b) Find out the material from which your friend’s house is made? Is there any difference? Write about it.

(c) What kind of house do you think Chetandas grandchildren will live in?

(d) Where would you like to live when you grow up? What kind of house would you like?

(e) You had written about the things that your grandparent’s house was made of. Has some of those material been used in your house? Name them.

(f) 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?

Answer.

(a) Cement, bricks, sand, iron rods, wood, tiles, etc., have been used in making our house.

(b) My friend’s house is made of cement, bricks, sand, iron rods, wood, tiles, etc. Yes, there is one difference that they have marble flooring in their house but floor of our house is made of tiles.

(c) Chetandas’ grandchildren will live in the houses made of cement, steel, concrete, wood, etc. Their house will have modern structures.

(d) I would like to live in a city where I can easily get all primary facilities like education, medical and jobs. I would like to live in a big pucca house.

(e) Out of the material used in my grandparent’s house, only wood is used in my house.

(f) A person who works with wood is called carpenter.

NCERT Page No. 103

1. Now, look at the picture and fill in the table. 

  • What kind of work is being done by different people here?
  • What tools are they shown using in the picture? Write them in the given table.

Work

Tool

What is the person called

1. ________

________

________

2. ________

________

________

3. ________

________

________

4. ________

________

________

Do you know people who do these type of work? Talk to them and find out about their work. Discuss it with your friends.

Answer.

Work

Tool

What is the person called

1. Construction of roof top

Trowel

Mason

2. Mixing of cement and sand

Spade

Labourer

3. Fitting of electric wires

Drill machine

Screw driver

Electrician

4. Fitting of pipes

Pipe-cutter

Pliers

Wrench

Plumber

Note: Students can talk to any of these persons who they know and note down their views and comments on their work.

2. 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?

(b) How many people are working there?

(c) What kind of work are they doing?

(d) How many men and women are there?

(e) Are any children working there? What are they doing?

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

(g) Where do these people live?

(h) What are the material being used for making the building?

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

Answer.

(a) A large multi-storey building is being built there.

(b) More than 200 people are working there.

(c) Some people are working to mix the cement and sand. Some other are welding the iron rods used to make pillars. A few people are carrying the construction material from one place to other. Masons are plastering the walls with cement. There are some people who are operating different machines and cranes.

(d) About 150 men and 50 women are working there.

(e) No, children are not working there.

(f) Different people are paid differently according to their work.

Mason – Rs 1000

Labour – Rs 300 - Rs 500

Carpenter – Rs 300

Crane driver – Rs 1500

(g) Some people live in the tents near the construction place and some other come from their homes in the nearby places.

(h) Cement, sand, iron rods, wood, bricks, concrete, etc., are being used for making the building.

(i) About 1000 trucks of bricks and 50,000 bags of cement will be used for making the building.

NCERT Page No. 104

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

Answer.

All the materials reach the building site by trucks or tempos.

2. Find out the price of

One bag of cement __________________________

One brick               __________________________

One truck of sand  __________________________

Answer.

Prices of different materials are given below:

One bag of cement – Rs 340/-

One brick –   Rs 5.00/-        

One truck of sand – Rs 6000/-

NCERT Page No. 105

3. Ask a few other questions and write their answers.

Answer.

A few other questions and their answers can be as follow:

  • Questions: How are iron rods used for constructing buildings?
  • Answer: Iron rods are used to construct pillars and ceilings of buildings. Iron rods give strength to the building.
  • Question: What is the use of cranes at construction sites?
  • Answer: Cranes are used to lift and move materials and supplies during construction.

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

Answer.

Students may download all the NCERT solutions for Class 4 EVS chapter 12 in PDF format so that they may get access to these solutions in offline mode. Link to download the solutions is given below:

Download CBSE Class 4 EVS NCERT Solutions for Chapter 12

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