class 5 EVS Chapter 12- what if it finishes

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WHAT IF IT FINISHES…?

VEHICLES

To understand the importance of fuel
in our daily life.
To recognize that fuel is a non-
renewable natural resource
To understand that money cannot buy
biofuels once it is over
We have to use it sensibly
OBJECTIVES OF THE LESSON

Fuel
Fuel is any material that is capable of
releasing energy when its chemical or
physical structure is altered.

HOW IT RELEASES ENERGY ?
Fuel releases its energy either
through chemical means, such as
burning, or nuclear means, such as
nuclear fission or nuclear fusion. An
important property of a useful fuel is
that its energy can be stored to be
released only when needed, and that
the release is controlled in such a way
that the energy can be harnessed to
produce work.

Let us look at two common types of
fuel in our daily life, i.e Petrol & Diesel

WHAT IS PETROL ?
Petrol is basically used as a fuel in
engines especially automobiles.
Petrol contains aliphatic hydrocarbons
along with iso-octane, toluene,
benzene etc. Along with that it may
also contain ethanol .It is basically a
refined substance as it is refined.

PETROL

OIL REFINERY

What is diesel ?
Diesel is a fuel derived from
petroleum but heavier than
gasoline/petrol. Used to power diesel
engines which burn this fuel using the
heat produced when air is
compressed.

Let us look at some pictures of petrol pump.

Today and tomorrow of a filling station

Petrol pump

Various types of fuels available for filling

Sources of petrol and diesel
Petrol is made from crude oil. Crude oil is
made up off fossil fuel which is made up of
prehistoric tree's , plants, and maybe
animals but mainly the green life, this then
is compressed on top of each other, after
billions of years the amount is epic. And
this then becomes what we called today as
crude oil, then it is refined into petrol/diesel
in different types of grades.

Now let us look at some of the pictures at
how petrol and diesel are used up

To ride an auto, you have to sweat it out.

OUR PAST & ALSO OUR FUTURE

May be someday we have to ride a
Bull’s Bike

Or enjoy a horse driven car.

Let us face the stark reality
The pictures depicted clearly
indicates that the life on this earth will
change if the existing fuels are used
up. These are only some indications
of what situation will mankind face if it
finishes.

If it finishes…..!
Many industrial units will be closed.
Many people will be out of
employment.
All the means of transport &
communication will be affected.
The world will be going back to the
era of carts & bullocks
Development & growth of mankind
will be halted

Consequences
We have pointed out only a few
instances of the impact of life on this
world if petrol or diesel finishes.

What can we do?
In order to save ourselves from such
a situation, we have to make
ourselves aware of the effects of NO
PETROL OR NO DIESEL.

Spread awareness
A campaign should be launched to
check the unwanted or unnecessary
misuse of the fuels in our daily life.
We have to start immediately before it
is too late.

ONGC KAZAKH OIL FIELD

Alternate source of energy

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