The document discusses different sources of energy, including fossil fuels. It explains that there are two main types of energy sources: renewable sources that do not run out like sunlight and wind, and non-renewable fossil fuels like coal, natural gas, and petroleum that are formed from ancient living organisms but will eventually be depleted. These fossil fuels are the primary sources of energy currently used worldwide. While fossil fuels are easy to extract and generate large amounts of electricity efficiently, they also emit air and water pollution and contribute to climate change when burned.

1. SOURCES OF ENERGY
FOSSIL FUELS
SCIENCE
6TH GRADE PRIMARY EDUCATION
By Teacher Delia Carmen Dumitru Sopirla

2. ENERGY
 Energy causes the changes we see around
us.
 Our society uses more energy all the
time.
 There are many types of energy, such as
mechanical, chemical, heat and
electrical.
 Energy can be transformed.
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Teacher Delia Carmen Dumitru Sopirla

3. SOURCE OF ENERGY
 Renewable sources of energy do not run out.
Examples are firewood, sunlight and the wind.
 Non-renewable sources of energy run out as
they are used up. Examples are coal, natural
gas or petroleum. Coal, natural gas and
petroleum are called fossil fuels.
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Teacher Delia Carmen Dumitru Sopirla
There are two types
of energy sources: Source:
http://1.bp.blogspot.com/_QXRm8WxqwVE/RtHYpIMVRWI/AAAAAAAAB
0A/bR3Oy4dZUfY/s1600-h/renewable+_energy.gif

4. TYPES OF ENERGY SOURCES
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Teacher Delia Carmen Dumitru Sopirla
Source: http://www.green-the-world.net/images/conventional_renewable_energy_sources.gif

5. SOURCES OF ENERGY: FOSSIL FUELS
 Traditionally, most of our energy comes from
combustible fossil fuels, such as natural gas or
oil/petroleum.
 Two main types of energy are used in everyday
life: electrical energy and combustible
energy or fuel energy such as petrol, diesel
fuel and natural gas.
 The power plants that produce most of our
electrical energy are thermal power plants.
These burn coal, natural gas or petroleum
products.
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Teacher Delia Carmen Dumitru Sopirla

6. SOURCES OF ENERGY: FOSSIL FUELS
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COAL PETROLEUM
NATURAL GAS
Source: https://encrypted-
tbn2.gstatic.com/images?q=tbn:ANd9GcRzRHxeq79v
b7DZ-mlOy217Stb-4YStqawvh9sMYML39qJn2Sgo
Source: https://encrypted-
tbn2.gstatic.com/images?q=tbn:ANd9GcRXf0Ggdv3MTp
QArSXC2gcFtdml4K9EDKmWERRh9sf7tB_T4g0GjA
Source: https://encrypted-
tbn0.gstatic.com/images?q=tbn:ANd9GcRf1dppLDRLma
HNqtZyN8kFSPLZbCChQUmRj7t1eyuah0zzowZo9w
Teacher Delia Carmen Dumitru Sopirla

7. SOURCES OF ENERGY: FOSSIL FUELS
 The fossil fuels are coal, oil/petroleum
and natural gas.
 They are fuels because they release heat
energy when they are burned.
 They are fossil fuels because they
were formed from the remains of
living organisms millions of years ago.
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Teacher Delia Carmen Dumitru Sopirla

8. SOURCES OF ENERGY: COAL
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Teacher Delia Carmen Dumitru Sopirla
Source: https://bridgebizstem.wordpress.com/2012/07/31/energy-sources-in-the-u-s/

9. SOURCES OF ENERGY: PETROLEUM & GAS
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Teacher Delia Carmen Dumitru Sopirla
Source: https://bridgebizstem.wordpress.com/2012/07/31/energy-sources-in-the-u-s/

10. SOURCES OF ENERGY: FOSSIL FUELS
 Fossil fuels such as coal and petroleum
are a non-renewable source of energy.
 Therefore if we use them, they will
eventually run out. Future generations
will not be able to use these sources of
energy.
 Spain, like other countries, uses more
energy from combustible fuels than
any other type of energy.
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Teacher Delia Carmen Dumitru Sopirla

11. SOURCES OF ENERGY: FOSSIL FUELS
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Teacher Delia Carmen Dumitru Sopirla
Source: http://kyivweekly.com.ua/images/338999.jpg
HOW DO WE EXTRACT COAL?

12. SOURCES OF ENERGY: FOSSIL FUELS
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Teacher Delia Carmen Dumitru Sopirla
Source: http://blogs.smithsonianmag.com/science/files/2012/08/Natural-gas-well.jpg
HOW DO WE EXTRACT NATURAL GAS?

13. SOURCES OF ENERGY: FOSSIL FUELS
Teacher Delia Carmen Dumitru Sopirla
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Source: http://im.rediff.com/money/2012/mar/28vene28.jpg
HOW DO WE EXTRACT PETROLEUM/CRUDE OIL?
Source: http://www.scienceclarified.com/photos/oil-drilling-2893.jpg
Source: https://encrypted-
tbn2.gstatic.com/images?q=tbn:ANd9GcRXf0Ggdv3MTpQArSXC2gcFtdml4K9EDKmWERR
h9sf7tB_T4g0GjA

14. SOURCES OF ENERGY: COAL & PETROLEUM
 Advantages:
 Easy to use. Fossil fuels are very easy to find.
 Efficient. A major advantage of fossil fuels is their capacity to generate
huge amounts of electricity in just a single location. Power plants that
utilize gas are very efficient.
 When coal is used in power plants, they are very cost effective. Coal is
also in abundant supply.
 Transporting oil and gas to the power stations can be made through
the use of pipes making it an easy task.
 Power stations that make use of fossil fuel can be constructed in
almost any location. This is possible as long as large quantities of fuel
can be easily brought to the power plants.
 The technology we use to harness the energy in fossil fuels is well
developed. The main reason for this is that fossil fuels have been used
to power our world for many decades.
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Teacher Delia Carmen Dumitru Sopirla

15. SOURCES OF ENERGY: COAL & PETROLEUM
 Disadvantages:
 Fossil fuels are non-renewable energy resources.
 Unsustainable. Their supply is limited and they will eventually
run out. Fossil fuels do not renew themselves, while fuels such as wood
can be renewed endlessly.
 Emits air pollution. Fossil fuels release carbon dioxide when they
burn, which adds to the greenhouse effect and increases global
warming. Of the three fossil fuels, for a given amount of energy released,
coal produces the most carbon dioxide and natural gas produces the
least.
 Coal and oil release sulfur dioxide gas when they burn, which causes
breathing problems for living creatures and contributes to acid rain.
 Accidents happen. They are not nearly as serious as accidents related
to nuclear power, but on the other hand, fossil fuels will never have the
safety of solar and wind.
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Teacher Delia Carmen Dumitru Sopirla

16. SOURCES OF ENERGY: COAL & PETROLEUM
 Bibliography:
 Santillana Educación S.L., (2011), Textbook: Top Science Teacher’s Book 6 Primary, Madrid: Richmond
Publishing
 http://1.bp.blogspot.com/_QXRm8WxqwVE/RtHYpIMVRWI/AAAAAAAAB0A/bR3Oy4dZUfY/s1600-
h/renewable+_energy.gif
 http://www.green-the-world.net/images/conventional_renewable_energy_sources.gif
 https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcRzRHxeq79vb7DZ-mlOy217Stb-
4YStqawvh9sMYML39qJn2Sgo
 https://encrypted-
tbn2.gstatic.com/images?q=tbn:ANd9GcRXf0Ggdv3MTpQArSXC2gcFtdml4K9EDKmWERRh9sf7tB_T4g0
GjA
 https://encrypted-
tbn0.gstatic.com/images?q=tbn:ANd9GcRf1dppLDRLmaHNqtZyN8kFSPLZbCChQUmRj7t1eyuah0zzowZo
9w
 https://bridgebizstem.wordpress.com/2012/07/31/energy-sources-in-the-u-s/
 http://www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/energy/mainselectricityrev1.shtml
 http://www.alternativeenergysecret.com/fossil-fuels.html
 http://energyinformative.org/fossil-fuels-pros-and-cons/
 http://kyivweekly.com.ua/images/338999.jpg
 http://blogs.smithsonianmag.com/science/files/2012/08/Natural-gas-well.jpg
 http://www.scienceclarified.com/photos/oil-drilling-2893.jpg
 http://im.rediff.com/money/2012/mar/28vene28.jpg
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Teacher Delia Carmen Dumitru Sopirla