Fossil fuels such as oil, natural gas, and coal are formed from the remains of ancient plants and animals that have been buried deep underground and subjected to heat and pressure over millions of years. The document then discusses how energy from the sun is converted through plants and animals into potential chemical energy, which is eventually stored in fossil fuels after the remains of plants and animals decompose over long periods of time. Modern machines convert the potential energy in fossil fuels like coal back into other forms of energy like electricity through processes like combustion and steam turbines.

1. By Puja

2.  Fossil fuels are natural substances made deep
in the earth from the remains of the ancient
plants and animals.
 Heat and pressure turns decomposing
remains into fuels.
 The fossil fuels are oil, natural gas, petroleum
and coal.

3.  This all stars from
sunlight.
 Sunlight gives
potential energy
to the plants from
which fruits and
vegetables grow.

4.  Animals - Then we and
the animals eat the food
using kinetic energy
converting to chemical
potential energy.
 Plants - The plants
grows using kinetic
energy taking potential
energy from the
sunlight, air and water.

5.  Animals – We and
the animals grow
using kinetic energy
taking chemical
potential energy
from the food we
eat.
 Plants - The plants
die, but still some
potential energy is
left.

6.  Animals – Animals die
but still some potential
energy is left. After
many years the animals
decompose to fossil
fuel.
 Plants – After many
years the plants
decompose to fossil
fuel.

7.  The fossil fuels are been used to generate
electricity.
 The coal is put in a machine called pulverize.
Which uses kinetic energy to crush the coal to
a fine dust. The coal gets potential energy
when it is been crushed.

8.  The pulverized coal is transferred to a
machine called Furnace.
 The furnace is surrounded with tubes filled
with water.
 The furnace burns the coal using kinetic
energy.
 The coal starts heating up using its potential
energy.

9.  The intensity from the burning coal heats the
water by using kinetic energy.
 The water turns into steam getting chemical
potential energy from the heat.

10.  The stem is transferred under pressure and
high speed through large pipe to a machine
called turbines by using kinetic energy.
 The steam gets more potential energy.

11.  The turbine is connected to
a generator that contains
the roller.
 Large electro magnets are
attached to the roller the is
located with copper wires.
 As the generated roller
spines using kinetic energy,
a flow of electrons are
created in the stir. This
produces electricity and
transfers it to us using
transmission lines.