Energy Resources: Section 1-Fossil Fuels

Oil is usually found:

-Deep underground, -2 souces near the surface are tar sands and oil shale.

Combustion (or burning)

-Process of combining hydrocarbons with oxygen at high temperatures. -It releases light and heat energy.

Uses for fossil fuels:

Sources of energy for industry, transportation and homes.

Oil--Liquid fossil fuel

Called oil or petroleum. Oil is found in areas once covered by oceans.

Petrochemicals

Useful substances that come from oil and natural gas. Examples: plastics, fabrics, medicines, building materials

3 main fossil fuels are:

1. Coal 2. Oil 3. Natural Gas

4 types of coal:

1. Peat: soft, gives off smoke, but not alot of energy. 2. Lignite: called brown coal, has a woody texture and is low in energy.

Coal,continued

3. Bituminous : called soft coal, found deep in the earth, is the most abundant. 4. Anthracite: hard coal, brittle, made from pressure on bituminous coal. Is almost pure carbon.

Fossil fuels...

Are going to run out! Conservation is the best way to provide energy for the future.

Fossil Fuels

Formed hundreds of millions of years ago, from remains of dead plants and animals.

Natural Gas

Found in oil deposits. It is less dense than oil, so found above the oil.

Crude Oil

Must be refined to remove impurities.

Hydrocarbons

Substances that contain hydrogen and carbon.

Fossil fuels pollute

the air with sulfur and sulfur dioxide.