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FOSSIL
FUELS
Fossil Fuels are some of the most important energy
sources in our world today. They are responsible for
everything from heating our houses to fueling our
automobiles. Coal, oil or petroleum, and natural gas
are considered the three basic fossil fuels. They
are created by the fossilization of plants and animals.
What Are Fossil Fuels?
natural gas
coal
petroleum
(oil/gasoline)
Fossil Fuels
All the energy in oil, gas, and
coal originally came from the
sun, captured through
photosynthesis. In the same
way that we burn wood to
release energy that trees
capture from the sun, we burn
fossil fuels to release the
chemical energy that ancient
plants captured from the sun.
We can think of this energy
as having been deposited in a
natural solar power bank over
millions of years.
One major problem is that we
are withdrawing oil, gas, and
coal from our natural bank of
solar power without making
any significant deposits. Fossil
fuels take millions of years to
form and are not renewable
within a human life span.
Therefore, once we consume all
the available deposits there will
be none left for future
generations.
Withdrawals Without any New Deposits
What are some ways we
depend on fossil fuels?
The idea behind the use of fossil fuels for energy is
combustion, more commonly called burning. Combustion is
the chemical process where molecules containing carbon are
exposed to oxygen and heat, which creates a chain reaction,
producing more heat to continue fueling the reaction. The
process of combustion runs our cars, the heat in our houses, the
machines in our factories, and lots of other things.
Coal Electricity
Fossil fuel energy is a finite resource. While there are still large
supplies of coal, oil, and natural gas, the demand is increasing as
the amount of new supplies being found is decreasing. Worldwide
energy use has been increasing and is projected to keep on
increasing as shown in this graph, especially the demand for oil.
What can we do?
What can we do?

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Fossil fuels

  • 2. Fossil Fuels are some of the most important energy sources in our world today. They are responsible for everything from heating our houses to fueling our automobiles. Coal, oil or petroleum, and natural gas are considered the three basic fossil fuels. They are created by the fossilization of plants and animals. What Are Fossil Fuels? natural gas coal petroleum (oil/gasoline)
  • 3. Fossil Fuels All the energy in oil, gas, and coal originally came from the sun, captured through photosynthesis. In the same way that we burn wood to release energy that trees capture from the sun, we burn fossil fuels to release the chemical energy that ancient plants captured from the sun. We can think of this energy as having been deposited in a natural solar power bank over millions of years.
  • 4. One major problem is that we are withdrawing oil, gas, and coal from our natural bank of solar power without making any significant deposits. Fossil fuels take millions of years to form and are not renewable within a human life span. Therefore, once we consume all the available deposits there will be none left for future generations. Withdrawals Without any New Deposits
  • 5. What are some ways we depend on fossil fuels?
  • 6. The idea behind the use of fossil fuels for energy is combustion, more commonly called burning. Combustion is the chemical process where molecules containing carbon are exposed to oxygen and heat, which creates a chain reaction, producing more heat to continue fueling the reaction. The process of combustion runs our cars, the heat in our houses, the machines in our factories, and lots of other things.
  • 8. Fossil fuel energy is a finite resource. While there are still large supplies of coal, oil, and natural gas, the demand is increasing as the amount of new supplies being found is decreasing. Worldwide energy use has been increasing and is projected to keep on increasing as shown in this graph, especially the demand for oil.
  • 10. What can we do?