2/12/15 IN: What are three renewable resources, and three non-renewable resources? Can you name a renewable resource that we use faster than it can be renewed?

Terms and Objectives  TERMS: *ENERGY RESOURCE *FOSSIL FUEL *PETROLEUM *NATURAL GAS *COAL *STRIP MINING *ACID PRECIPITATION *SMOG  OBJECTIVES: *Classify the different forms of fossils *Explain how fossil fuels are obtained

Where do humans get useful energy? Energy Resources – natural resources that humans use to produce energy.

Remember…  There are many types of renewable and nonrenewable energy resources and all of the energy released from these resources ultimately comes from the sun.

Where do humans get useful energy?  The energy resources on which humans currently depend the most are fossil fuels.

What are fossil fuels? Fossil Fuels – nonrenewable energy resources that form in the Earth’s crust over millions of years from the buried remains of once-living organisms.

How do fossil fuels work?  Energy is released from fossil fuels when they are burned.  There are many types of fossil fuels, which exist as liquids, gases, and solids, and humans use a variety of methods to obtain and process them which can sometimes have negative effects on the environment.

Liquid Fossil Fuels Petroleum – crude oil, an oily mixture of flammable organic compounds from which liquid fossil fuels and other products, such as asphalt, are separated.

What is separated from petroleum?  Gasoline  Jet Fuel  Kerosene  Diesel Fuel  Fuel Oil

Gaseous Fossil Fuels Natural Gas – a gaseous fossil fuel. Most natural gas is used for heating and for generating electricity.

Components of Natural Gas  Methane Fuel  Butane Fuel for camp stoves  Propane Heating fuel and as a cooking fuel

Solid Fossil Fuels Coal – a solid fossil fuel formed underground from buried, decomposed plant material.

Importance of Coal  Coal, the only fossil fuel that is a rock, was once the leading source of energy in the United States.  People burned coal for heating and transportation.

How do petroleum and natural gas form?  All fossil fuels form from the buried remains of ancient organisms.

How does coal form?  Coal forms underground over millions of years from decayed swamp plants.

 The higher the carbon content, the cleaner the material burns.

Where are fossil fuels found?

How do humans obtain fossil fuels?  Drilling

How do humans obtain fossil fuels?  Strip mining

Problems with Coal  People began to use coal less because burning coal often produces large amounts of air pollution and because better energy resources were discovered.

Problems with Coal  Acid precipitation Rain or snow that has a high acid content due to air pollutants.

Problems with Coal  Coal Mining can be hazardous to those who are working them, they can lower water tables, pollute the water supplies, and cause the overlying earth to collapse.

Problems with Petroleum  Oil Spills

Problems with Fossil Fuels Smog – a photochemical fog produced by the reaction of sunlight and air pollutants.

Dealing with Fossil Fuel Problems  Car pool  Use mass transit systems  Use alternative energy resources

 OUT: What are the three basic types of fossil fuels?