The Energy Story (Fossil Fuels)

K Warne

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How Coal was Formed

Coal developed from

the ……………….

that died ……….

……………………

ago.

It is often referred to

as a ………………..

From World Book © 2002 World Book, Inc., 233 N. Michigan Avenue,

Suite 2000, Chicago, IL 60601. All rights reserved. World Book photo

Fossil Fuels Plants & animals die buried many

years decompose oil & gas!

From World Book © 2002 World Book, Inc., 233 N. Michigan Avenue,

Suite 2000, Chicago, IL 60601. All rights reserved. World Book photo

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Oil (Petroleum)

Formed from the remains of dead/decaying …………...

Used extensively to make ………., …………. & ……………… compounds (……….. etc)

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Natural Gas

Formed during the decomposition of ………….. ………………..

Often mined in large off shore drilling platforms.

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Fossil Fuels The coal-forming

plants probably grew in ………... As the plants died, they formed a ………… of ………….. on the swamp floor.

This matter …………. into a substance called ……….. which became buried under sand or other mineral matter.

The increasing ..………..of the layers began to change the peat into …….,…….. ………………..

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Problems with fossil fuels All the fossil fuels – took a

very long time to form they are said to be ……………………….

We are using fossil fuels much …………………… than they can be ……………….

We will ………… of fossil fuels.

Conflict/war – results as ……………………………… for

these resources.

Pollution problems are

caused: ……………….. and …………………..

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Fossil Fuels Combustion

Combustion refers to reaction with oxygen.

Coal (carbon)

C + O2 CO2

Oil (hydrocarbon)

C20H42 + O2 ……….. + …………. Natural gas (hydrocarbon – methane)

CH4 + O2 ……….. + ………….

Complete & balance these reactions!

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Fossil Fuels - Alternatives

Nuclear Power

Hydro-electricity (gravitational potential)

Wind Power

Solar Energy

Wave Energy

Biomass

Global warming

Fossil Fuels energy heat

Fossil fuels CO2

CO2 traps heat in the atmosphere

CO2

Acid Rain

Forest damaged by acid rain!

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Hi -

This is a SAMPLE presentation only.

My FULL presentations, which contain loads more slides (with all the gaps filled in) as well as

other resources, are freely available on my resource sharing website:

www.sciencecafe.org.za

(paste into your browser if link above does not work)

Have a look and enjoy!

Keith Warne