Chapter 12 evs What if it finishes

CLASS 5 SUBJECT SOCIAL SCIENCES

WORKSHEET CHAPTER (WHAT IF IT FINISHES)

Q1. LOOK AT THE PICTURE AND ANSWER:--

1.       What are the different kinds of vehicles that you can see?

Ans: - I can see bus, car, motorcycle, scooter, auto-rickshaw, cycle etc.

2.       What do you think they need as fuel?

Ans: Cycle does not need any fuel, but all other vehicles shown here need petrol or diesel as fuel.

Q2. TELL:-

1.       Do you ride a bicycle? If yes, where all do you go on it?

Ans: Yes, I go to school, playground and market on the bicycle.

2.       How do your family members go to work from home?

Ans: My father goes to his office by his bike, my mother goes to her school by auto-rickshaw and I and my brother go to school by bus.

3.       What problems do we have from smoke coming out of vehicles?

Ans: The smoke can cause cough, headache, breathing problem and other lung diseases.

Q3. FIND OUT:-

1.       Which states of India have oil fields?

Ans: Assam, Gujarat, Maharashtra, and Andhra Pradesh have oil fields.

2.       Besides oil, what else is found deep inside the earth?

Ans: Besides oil, coal, iron, copper, gold, diamond, silver and many more minerals are found deep inside the earth.

Q4. WRITE:-

1.       What all can vehicles run on?

Ans: Vehicles can run on petrol, diesel, CNG, LPG, solar energy and battery.

2.       What kind of problems will we face, if the number of vehicles keeps on increasing? For example, more traffic on the road. Talk to your elders and write about it.

Ans: If the number of vehicles keep on increasing it would cause air pollution, road accidents, noise pollution and traffic jam.

3.       Manju said, “Why doesn’t everyone use a bus? What do you think, why don’t people travel by buses?

Ans: Buses are overcrowded so people usually avoid these. Rather they prefer to go by their own vehicle which is convenient and timesaving.

4.       Suggest some ways to deal with the problems arising out of the growing number of vehicles.

Ans: There are a few ways   for dealing with the problem:

a.       People should prefer public transport.

b.       People should pool their car i.e. sharing car.

Q5. FIND OUT AND WRITE:-

How much oil?	Scooter	Car	tractor
How much petrol/diesel can be filled at a time?	10 liters	40-50 liters	40-50 liters
How far can it go on one liter of petrol/diesel?	40-50 km.	15-20 km.	10-12 km.

Q6. FIND OUT:--

1.       Why are the prices of petrol and diesel going up?

Ans: Petrol and diesel are fossil fuel. They take thousands of years to renew.

So the production of this fossil fuel is limited, whereas the consumption is increasing very fast.

That is why the prices of the petrol and diesel are going up.

Q6. SEE THE POSTER AND WRITE:-

1.       Where all is oil used?

Ans: Oil is used:-

1.       To run machines.

2.       To run automobiles and aero planes.

3.       To dry clean clothes.

4.       To make plastic and paints.

5.       To make kerosene, LPG, natural gas and grease.

2.       Where is diesel used?

Ans: Diesel is used as fuel for cars, buses, trucks, generators and machines in factories.

Q7. THINK AND DISCUSS:-

1.       What would happen if you don’t get petrol or diesel for a week in your village or town?

Ans: If we don’t get petrol or diesel for a week, the life will become standstill. No vehicle other than cycle can run. Factories will stop working. No generator can run in case of power cut.

2.       Suggest some ways to save oil.

Ans: There are some ways to save oil:

a.       Use public transport instead of personal vehicle.

b.       Prefer walking or cycling if you need to go short distances.

c.       Switch off the engine of vehicle on red lights.

d.       Use solar energy.

e.       Cook daals and vegetables in pressure cooker or covered lid.

f.        Soak pulses and rice before cooking.

Q8. DISCUSS:-

1.       Have you ever collected dry wood or made cow dung cakes? How are they made?

Ans: Yes, once I went to Arunachal Pradesh with my friend. There I went to collect wood with her family to make bonfire at night.

I have never made cow dung cakes but have seen some ladies in nearby village making them. Hay is mixed with cow dung and shape of cake is given.

It is then sun dried.

2.       Do you know anyone who collects dry wood or leaves to be used for lighting a chulha?

Ans: Yes, my maid usually collects dry wood and leaves for lightening chulha.

She uses these things as fuel in her kitchen.

3.       Who cooks food in your family? What about other families in your area?

Ans: My mother cooks food in our family. In most of the families in our area, ladies cook food for the family.

4.       If they cook food using wood or upla (cow dung cakes), what difficulties do they face due they face due to smoke?

Ans: If they cook food using wood or upla, they may suffer from cough, headache, breathing problem and lung diseases.

5.       Can Durga use anything else instead of wood? Why not?

Ans: yes, she can use cow dung instead of wood because if she uses wood trees will be cut. And she cannot buy kerosene oil or LPG because she is very poor.

6.       In year 1976, out of 100 how many houses used uple and wood?

Ans: 84 houses.

7.       Which was the fuel least used in 1976?

Ans: Electricity.

8.       In 1976 LPG and kerosene were used in 10 houses and in 1996 it increased to 18. This means that in twenty years their use increased by 80 %.

9.       Out of 100 how many houses were using electricity in 1996?

Ans: Out of 100, only 5 houses were using electricity in 1996.

10.   Which fuel was used the least in 1996? What percentage of houses used in the year 1976?

Ans: Coal was used the least in 1996. 5% of houses used it in the year 1976.

Q9. FIND OUT FROM YOUR ELDERS:-

1.       When they were young, what was they then used to cook food at home?

Ans: When they were young, they used coal for cooking. They also used cow dung cakes and firewood for cooking.

2.       In the past 10 years use of which cooking fuel has increased in your area? Use of which fuel has decreased?

Ans: in the past 10 years, the use of LPG and electricity has increased and the use of firewood and cow dung cakes has decreased.

3.       Guess the use of which fuel would increase and which would decrease?

Ans: I think the use of LPG and electricity will increase and wood, coal, and upla will decrease.

Q10. WHAT WE HAVE LEARNT:-

1.       Imagine that a company has given you a chance to design a new vehicle like mini bus? What kind of vehicle would you design? Write about it. Draw a picture and colour it.

Ans: If I would be given a chance to design a new vehicle, I would like to design an eco-friendly vehicle that can be run on solar power. My vehicle would easily be driven by children, elderly and disabled.  

2.       While making the design, what did you plan to take care of:

a.       Old people

b.       Children

c.       Those who cannot see.

Ans: I would take care of the following things:

a.       Low floor, seat belts

b.       Closed doors grills on windows

c.       Sensors at gates and grab handles near seats.

GRAPH:-

 Q1. In year 1976, out of 100, how many houses used uple and wood?

Ans: 84 houses.

Q2. Which was the fuel used the least in 1976?

Ans: Electricity.

Q3.  In 1976, LPG and Kerosene were used in 10 houses and in 1996 this increased to 18 this means that in twenty years their use increased by 80%.

Q4. Out of 100, how many houses were using electricity in 1996?

Ans: 5 houses.

Q5. Which fuel was used the least in 1996? What percentage of the houses used it in the year 1976?

Ans: Coal was used the least in 1996. In 1976 it was used in 5% of houses.

FIND OUT FROM YOUR ELDERS:-

Q1. When they were young what was used to cook food at home?

Ans: When they were young, coal, firewood and cow dung cakes were used for cooking at home.

Q2. In the past 10 years use of which cooking fuel has been increased in your area? Use of which fuel has been decreased?

Ans: In the last 10 years use of LPG and electricity has been increased and the use of coal, cow dung cake and wood have been decreased.

Q3. Guess the use of which fuel would increase and which decrease in the next 10 years?

Ans: In the next 10 years, use of LPG and electricity will increase and the use of cow dung cake, firewood and coal will decrease.

WHAT WE HAVE LEARNT:-

Q1. Imagine that a company has given you a chance to design a new vehicle like mini bus. What kind of vehicle would you design? Write about it.

Ans: If I were given such a chance I would like to design a vehicle which is:

1.       Ecofriendly.

2.       Run on solar energy.

3.       Disabled friendly.

4.       Easy driven.

Q2. While making the design, what did you plan to take care of?

1.       Old people

2.       Children

3.       Those who cannot see

Ans:

1.        Low floor, seat belt

2.       Low floor, closed door, grills windows

3.       Tactile sensors at gates and on grab handles near seats.