Fossil fuels
Transcript of Fossil fuels
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ObjectivesObjectives
Identify the three types of fossil fuels
Relate the three types of fossil fuels to where they are used everyday
Discuss the origin and characteristics of the three main types of fossil fuels
Discuss ideas for the conservation of fossil fuels
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What are the three types of fossil What are the three types of fossil fuels?fuels?
Petroleum
Natural Gas
Coal
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How were fossil fuels formed?How were fossil fuels formed?
Dead plants and animals
Covered with layers of mud, mud, volcanic ash, and other things collected on the earth’s surface
Happens over many years through great pressure, heat, and bacteria
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PetroleumPetroleum
Petroleum (hydrocarbons) must be separated to make use of their energy
Separated by a process called fractional distillation
Certain petroleum substances boil at specific temperatures and can be removed at those temperatures
Gasoline: between 40-180 C, asphalt: between 405-515 C
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Natural GasNatural Gas Usually found in the same
places as petroleum under the surface of the earth
Made mostly of methane (CH4)
Used for things like gas stoves or gas heating for homes
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CoalCoal
Solid fossil fuel made from the remains of plants
Found by mines, sometimes at the earth’s surface, but usually about 100 meters underground
Lackawanna Coal Mine near Scranton
Must be cleaned and purified before using it as a fuel
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DangersDangers Petroleum: when it is burned, it produces CO
Dangerous, odorless gas
Natural Gas: when it is burned, it produces CO2
One of the key components that warms the earth’s atmosphere
Coal: if not cleaned properly, can cause acid rain
Can contaminate water sources and be dangerous if you have too much of it
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ConservationConservation
All fossil fuels are non-renewable resources
They cannot be replaced after they are used
It is possible that the United States will run out of petroleum within the 100 years
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What are some things that we can do What are some things that we can do to save our fossil fuels?to save our fossil fuels?