Chapter 12 - What if it Finishes?, NCERT Textbook of CBSE Class 5 EVS (Environmental Science) Class 5 Notes | EduRev

EVS Class 5

Class 5 : Chapter 12 - What if it Finishes?, NCERT Textbook of CBSE Class 5 EVS (Environmental Science) Class 5 Notes | EduRev

 Page 1


110 Looking Around
A bus journey
Today, we were going on a school trip to the Adalaj stepwell
(baoli), about eighteen kilometres from Ahmedabad. We began
counting the vehicles on the road. Some of us counted the
bicycles, others counted the buses, cars, and motorcycles. Abraham,
who was counting bicycles, soon got bored. There were hardly any
bicycles on this highway.
Screeeech! The driver suddenly braked at the red light. It was a big
crossing, and we could see
the traffic lined up on
all sides. Honk, honk,
the sound of loud
horns, and smoke
coming out of the
vehicles! May be that
is why a little boy in a
rickshaw was
coughing so much.
I smelt something,
familiar. I remembered
this smell – it came
from Baba’s tractor in the village.
Teacher’s Note : Examples of familiar highways can help children see the
difference between various kinds of roads. Discussion with children could involve
listening to their own experiences about the noise made by vehicles and the ill
effects of smoke.
12. What if it Finishes...?
110
Page 2


110 Looking Around
A bus journey
Today, we were going on a school trip to the Adalaj stepwell
(baoli), about eighteen kilometres from Ahmedabad. We began
counting the vehicles on the road. Some of us counted the
bicycles, others counted the buses, cars, and motorcycles. Abraham,
who was counting bicycles, soon got bored. There were hardly any
bicycles on this highway.
Screeeech! The driver suddenly braked at the red light. It was a big
crossing, and we could see
the traffic lined up on
all sides. Honk, honk,
the sound of loud
horns, and smoke
coming out of the
vehicles! May be that
is why a little boy in a
rickshaw was
coughing so much.
I smelt something,
familiar. I remembered
this smell – it came
from Baba’s tractor in the village.
Teacher’s Note : Examples of familiar highways can help children see the
difference between various kinds of roads. Discussion with children could involve
listening to their own experiences about the noise made by vehicles and the ill
effects of smoke.
12. What if it Finishes...?
110 What if it Finishes...? 111
Teacher’s Note : The term ‘oil’ can be used for petrol, diesel and crude oil. Discuss
with children about various minerals which are mined from deep inside the earth.
Look at the picture and write
 What are the different kinds of vehicles that you can see?
 What do you think they need as fuel?
 Which of the vehicles do you think give off smoke? Put a
red mark on those.
Tell
 Do you ride a bicycle? If yes, where all do you go on it?
 How do you come to school?
 How do your family members go to work from home?
 What problems can we have from smoke coming out of
vehicles?
On the petrol pump
After sometime our bus
stopped at a petrol pump.
There was a long queue. It
seemed as if we would have
a long wait. We all got down
from the bus and started
looking around the petrol
pump. We saw many large
boards and posters.
Petrol Pump
Petrol
Pump
Page 3


110 Looking Around
A bus journey
Today, we were going on a school trip to the Adalaj stepwell
(baoli), about eighteen kilometres from Ahmedabad. We began
counting the vehicles on the road. Some of us counted the
bicycles, others counted the buses, cars, and motorcycles. Abraham,
who was counting bicycles, soon got bored. There were hardly any
bicycles on this highway.
Screeeech! The driver suddenly braked at the red light. It was a big
crossing, and we could see
the traffic lined up on
all sides. Honk, honk,
the sound of loud
horns, and smoke
coming out of the
vehicles! May be that
is why a little boy in a
rickshaw was
coughing so much.
I smelt something,
familiar. I remembered
this smell – it came
from Baba’s tractor in the village.
Teacher’s Note : Examples of familiar highways can help children see the
difference between various kinds of roads. Discussion with children could involve
listening to their own experiences about the noise made by vehicles and the ill
effects of smoke.
12. What if it Finishes...?
110 What if it Finishes...? 111
Teacher’s Note : The term ‘oil’ can be used for petrol, diesel and crude oil. Discuss
with children about various minerals which are mined from deep inside the earth.
Look at the picture and write
 What are the different kinds of vehicles that you can see?
 What do you think they need as fuel?
 Which of the vehicles do you think give off smoke? Put a
red mark on those.
Tell
 Do you ride a bicycle? If yes, where all do you go on it?
 How do you come to school?
 How do your family members go to work from home?
 What problems can we have from smoke coming out of
vehicles?
On the petrol pump
After sometime our bus
stopped at a petrol pump.
There was a long queue. It
seemed as if we would have
a long wait. We all got down
from the bus and started
looking around the petrol
pump. We saw many large
boards and posters.
Petrol Pump
Petrol
Pump
112 Looking Around
• Petrol and diesel will not
last forever. Save it for
your children.
• Make every drop go a
long way.
• Switch off the engine
when you stop the car.
We could not understand why it was written that petrol and
diesel will not last forever. We thought of asking an uncle who
works at the petrol pump.
Abraham : Uncle, from where do we get petrol and diesel?
Uncle (who works at the petrol pump) : From deep, deep
down under the ground.
Manju : But how does it get made there?
Uncle: It is formed naturally, but very slowly. It is not made by
a human being or a machine.
Abraham : Then we don't need to buy it. We can take it out
ourselves using a borewell, like we pump out water!
Uncle : It is not found everywhere, but only at a few places in
our country. We need big machines to pump it out and clean it.
Petrol: Rs 47.74 per litre
Diesel: Rs 35.21 per litre
Rate
Date 06-06-2007
Page 4


110 Looking Around
A bus journey
Today, we were going on a school trip to the Adalaj stepwell
(baoli), about eighteen kilometres from Ahmedabad. We began
counting the vehicles on the road. Some of us counted the
bicycles, others counted the buses, cars, and motorcycles. Abraham,
who was counting bicycles, soon got bored. There were hardly any
bicycles on this highway.
Screeeech! The driver suddenly braked at the red light. It was a big
crossing, and we could see
the traffic lined up on
all sides. Honk, honk,
the sound of loud
horns, and smoke
coming out of the
vehicles! May be that
is why a little boy in a
rickshaw was
coughing so much.
I smelt something,
familiar. I remembered
this smell – it came
from Baba’s tractor in the village.
Teacher’s Note : Examples of familiar highways can help children see the
difference between various kinds of roads. Discussion with children could involve
listening to their own experiences about the noise made by vehicles and the ill
effects of smoke.
12. What if it Finishes...?
110 What if it Finishes...? 111
Teacher’s Note : The term ‘oil’ can be used for petrol, diesel and crude oil. Discuss
with children about various minerals which are mined from deep inside the earth.
Look at the picture and write
 What are the different kinds of vehicles that you can see?
 What do you think they need as fuel?
 Which of the vehicles do you think give off smoke? Put a
red mark on those.
Tell
 Do you ride a bicycle? If yes, where all do you go on it?
 How do you come to school?
 How do your family members go to work from home?
 What problems can we have from smoke coming out of
vehicles?
On the petrol pump
After sometime our bus
stopped at a petrol pump.
There was a long queue. It
seemed as if we would have
a long wait. We all got down
from the bus and started
looking around the petrol
pump. We saw many large
boards and posters.
Petrol Pump
Petrol
Pump
112 Looking Around
• Petrol and diesel will not
last forever. Save it for
your children.
• Make every drop go a
long way.
• Switch off the engine
when you stop the car.
We could not understand why it was written that petrol and
diesel will not last forever. We thought of asking an uncle who
works at the petrol pump.
Abraham : Uncle, from where do we get petrol and diesel?
Uncle (who works at the petrol pump) : From deep, deep
down under the ground.
Manju : But how does it get made there?
Uncle: It is formed naturally, but very slowly. It is not made by
a human being or a machine.
Abraham : Then we don't need to buy it. We can take it out
ourselves using a borewell, like we pump out water!
Uncle : It is not found everywhere, but only at a few places in
our country. We need big machines to pump it out and clean it.
Petrol: Rs 47.74 per litre
Diesel: Rs 35.21 per litre
Rate
Date 06-06-2007
What if it Finishes...? 113
Find Out
 Which states of India have oil fields?
 Besides oil, what else is found deep inside the earth?
They discuss further...
Divya : Is petrol going to finish? The poster said that petrol is not
going to last forever.
Uncle : It does not get made as fast as we take it out. It takes lakhs of
years for it to be formed under the earth.
Abraham : How will vehicles run if the oil finishes?
Manju : On CNG. I had seen on TV that vehicles which run on CNG
give less smoke.
Uncle (laughing) : That too comes from below the earth. It is also
limited.
Divya : Electricity can be used to run vehicles. I have seen an
electric bicycle.
Abraham : We will have to do something. Or else, how will we travel
when we grow up?
Divya : If fewer vehicles run on the road my dadi (grandmother)
would be happy. She says, “Look! vehicles line up like ants. What
will you do when you grow up?”
Manju : See, only one or two people are sitting in these cars. Why
doesn’t everyone use a bus?
Abraham : That will save petrol. One bus can carry many people.
Manju : When I grow up I will invent a car that runs on sunlight.
Then we won't have to worry about it getting finished.  We can use
it as much as we want!
Teacher’s Note : Different uses of solar energy can be discussed. The concept of
‘energy’ is abstract for children of this age but they can begin thinking of it in terms
of strength, power, etc. Encourage children to think which resources are limited
and why.
Page 5


110 Looking Around
A bus journey
Today, we were going on a school trip to the Adalaj stepwell
(baoli), about eighteen kilometres from Ahmedabad. We began
counting the vehicles on the road. Some of us counted the
bicycles, others counted the buses, cars, and motorcycles. Abraham,
who was counting bicycles, soon got bored. There were hardly any
bicycles on this highway.
Screeeech! The driver suddenly braked at the red light. It was a big
crossing, and we could see
the traffic lined up on
all sides. Honk, honk,
the sound of loud
horns, and smoke
coming out of the
vehicles! May be that
is why a little boy in a
rickshaw was
coughing so much.
I smelt something,
familiar. I remembered
this smell – it came
from Baba’s tractor in the village.
Teacher’s Note : Examples of familiar highways can help children see the
difference between various kinds of roads. Discussion with children could involve
listening to their own experiences about the noise made by vehicles and the ill
effects of smoke.
12. What if it Finishes...?
110 What if it Finishes...? 111
Teacher’s Note : The term ‘oil’ can be used for petrol, diesel and crude oil. Discuss
with children about various minerals which are mined from deep inside the earth.
Look at the picture and write
 What are the different kinds of vehicles that you can see?
 What do you think they need as fuel?
 Which of the vehicles do you think give off smoke? Put a
red mark on those.
Tell
 Do you ride a bicycle? If yes, where all do you go on it?
 How do you come to school?
 How do your family members go to work from home?
 What problems can we have from smoke coming out of
vehicles?
On the petrol pump
After sometime our bus
stopped at a petrol pump.
There was a long queue. It
seemed as if we would have
a long wait. We all got down
from the bus and started
looking around the petrol
pump. We saw many large
boards and posters.
Petrol Pump
Petrol
Pump
112 Looking Around
• Petrol and diesel will not
last forever. Save it for
your children.
• Make every drop go a
long way.
• Switch off the engine
when you stop the car.
We could not understand why it was written that petrol and
diesel will not last forever. We thought of asking an uncle who
works at the petrol pump.
Abraham : Uncle, from where do we get petrol and diesel?
Uncle (who works at the petrol pump) : From deep, deep
down under the ground.
Manju : But how does it get made there?
Uncle: It is formed naturally, but very slowly. It is not made by
a human being or a machine.
Abraham : Then we don't need to buy it. We can take it out
ourselves using a borewell, like we pump out water!
Uncle : It is not found everywhere, but only at a few places in
our country. We need big machines to pump it out and clean it.
Petrol: Rs 47.74 per litre
Diesel: Rs 35.21 per litre
Rate
Date 06-06-2007
What if it Finishes...? 113
Find Out
 Which states of India have oil fields?
 Besides oil, what else is found deep inside the earth?
They discuss further...
Divya : Is petrol going to finish? The poster said that petrol is not
going to last forever.
Uncle : It does not get made as fast as we take it out. It takes lakhs of
years for it to be formed under the earth.
Abraham : How will vehicles run if the oil finishes?
Manju : On CNG. I had seen on TV that vehicles which run on CNG
give less smoke.
Uncle (laughing) : That too comes from below the earth. It is also
limited.
Divya : Electricity can be used to run vehicles. I have seen an
electric bicycle.
Abraham : We will have to do something. Or else, how will we travel
when we grow up?
Divya : If fewer vehicles run on the road my dadi (grandmother)
would be happy. She says, “Look! vehicles line up like ants. What
will you do when you grow up?”
Manju : See, only one or two people are sitting in these cars. Why
doesn’t everyone use a bus?
Abraham : That will save petrol. One bus can carry many people.
Manju : When I grow up I will invent a car that runs on sunlight.
Then we won't have to worry about it getting finished.  We can use
it as much as we want!
Teacher’s Note : Different uses of solar energy can be discussed. The concept of
‘energy’ is abstract for children of this age but they can begin thinking of it in terms
of strength, power, etc. Encourage children to think which resources are limited
and why.
114 Looking Around
Treasure from the earth
It is not easy to find out where oil is, deep down below the earth.
Scientists use special techniques and machines to find this out. Then
through pipes and machines petroleum is pumped up. This oil is a
smelly, thick, dark coloured liquid. It contains many things mixed
in it. To clean and separate these, it is sent to a refinery.  Have you
heard of a ‘refinery’?
It is from this ‘petroleum’ or oil that we get kerosene, diesel, petrol,
engine oil and fuel for aircrafts. Do you know that L.P.G. (cooking
gas), wax, coaltar and grease are also obtained from this?
It is also used in making several other things like plastics and
paints.
I started thinking about saving oil. I remembered that
sometimes Baba keeps the engine of the tractor on, while
doing something else.  At times, the pump in the field is also
left on.  How much oil would be going waste! I thought I will
surely talk to Baba when I get home.
Write
 What all can vehicles run on?
 What kinds of problems will we face, if the number of
vehicles keep on increasing? For example, more traffic on
the road. Talk to your elders and write about it.
 Manju said, “Why doesn't everyone use a bus?” What do
you think, why don’t people travel by buses?
 Suggest some ways to deal with the problems arising out
of the growing number of vehicles.
Teacher’s Note : Discuss about the possible options for reducing the number of
vehicles on the road and also use different news reports related to it.
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