Chapter Introduction Lesson 1 Sources of Energy Lesson

Sources of Energy Essential Question • What are the ways electricity can be produced?

Sources of Energy Renewable resources Nonrenewable resources Inexhaustible resources Fossil fuels Alternative energy source

• Renewable resources are materials from the environment that people use that can

• Nonrenewable resources are materials from the environment that people use that cannot

• Inexhaustible resources is an energy source that cannot be used up.

• Fossil fuels are a fuel formed from the decay of ancient forms

What are alternative energy sources? • Alternative energy source is a source of energy

• Nuclear energy is the energy contained in the nucleus of an atom.

• Geothermal energy is heat from below the Earth’s surface.

• Hydroelectricity is electricity generated by running water.

People and the Environment Essential Question • How does using natural resources affect the

People and the Environment Pollution Monetary costs Smog Nonmonetary costs Acid rain Cost-effectiveness Thermal

• Pollution is a harmful change to the environment.

• Smog is a mixture of smoke and fog, formed when smoke and

• Acid rain is acid that is formed when the sulfur and nitrogen

Thermal pollution is the addition of warm water into a stream or lake that

Monetary cost is the cash value of energy use: examples include the cost of

Nonmonetary cost is the environmental consequences of energy use; examples include the generation of

Cost-effectiveness is a measure determined by comparing the costs and the consequences of different

Saving Resources Conservation Reduce Biomass Reuse Hydrogen fuel Recycle

Conservation is saving, protecting, or using natural resources wisely.

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Chapter Introduction Lesson 1 Sources of Energy Lesson 2 People and the Environment Lesson 3 Saving Resources Chapter Wrap-Up

Sources of Energy Essential Question • What are the ways electricity can be produced?

Sources of Energy Renewable resources Nonrenewable resources Inexhaustible resources Fossil fuels Alternative energy source Nuclear energy Geothermal energy Hydroelectricity

• Renewable resources are materials from the environment that people use that can be replaced relatively quickly.

• Nonrenewable resources are materials from the environment that people use that cannot be replaced.

• Inexhaustible resources is an energy source that cannot be used up.

• Fossil fuels are a fuel formed from the decay of ancient forms of life.

What are alternative energy sources? • Alternative energy source is a source of energy other than the burning of fossil fuel.

• Nuclear energy is the energy contained in the nucleus of an atom.

• Geothermal energy is heat from below the Earth’s surface.

• Hydroelectricity is electricity generated by running water.

People and the Environment Essential Question • How does using natural resources affect the environment?

People and the Environment Pollution Monetary costs Smog Nonmonetary costs Acid rain Cost-effectiveness Thermal pollution

• Pollution is a harmful change to the environment.

• Smog is a mixture of smoke and fog, formed when smoke and fumes collect in moist, calm air.

• Acid rain is acid that is formed when the sulfur and nitrogen gases produced by burning fossil fuels combine with water vapor in the air and then fall to Earth as rain.

Thermal pollution is the addition of warm water into a stream or lake that is normally cold.

Monetary cost is the cash value of energy use: examples include the cost of heating a home or the large amount of money used to clean up an oil spill.

Nonmonetary cost is the environmental consequences of energy use; examples include the generation of pollution and long-term health problems caused for people.

Cost-effectiveness is a measure determined by comparing the costs and the consequences of different ways of doing something.

Saving Resources Conservation Reduce Biomass Reuse Hydrogen fuel Recycle

Conservation is saving, protecting, or using natural resources wisely.