fossil fuels

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

What are the three types of fossil What are the three types of fossil fuels?fuels?

Petroleum

Natural Gas

Coal

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

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

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

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

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

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

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?