LESSON LESSON INTRODUCTION Get Ready Before you begin, decide if you agree or disagree with each of these statements. As you view this presentation, see if you change your mind about any of the statements. What do you think? 3 Energy Resources

Get Ready LESSON LESSON INTRODUCTION Do you agree or disagree? Nuclear power plants release many dangerous pollutants into the air as they transform nuclear energy into electric energy. Thermal energy from within Earth can be transformed into electric energy at a power plant. 3 Energy Resources

Key Concepts/Essential Questions LESSON LESSON INTRODUCTION 3 Energy Resources What are nonrenewable energy resources? What are renewable energy resources? Why is it important to conserve energy?

Vocabulary Watch out for these words! LESSON LESSON INTRODUCTION nonrenewable energy resource fossil fuel renewable energy resource inexhaustible energy resource 3 Energy Resources

LESSON LESSON INTRODUCTION 3 Energy Resources Extracting Energy? Look at the photo at the beginning of the lesson. Where does the electric energy come from when you turn on the lights in your home? The answer to that question depends on where you live. Different energy resources are used in different parts of the United States.

LESSON Most of the energy we use can be traced back to the sun. Food, fuel, wood A little bit comes from inside the Earth. 3 Where does energy we use come from?

LESSON the remains of ancient organisms. nonrenewable resources. petroleum (oil), coal, natural gas. a contributor to global warming because they release CO 2 (carbon dioxide) when burned. 3 Fossil Fuels are…

LESSON Can be refined (made into) gasoline, fuel oil, diesel, and kerosene Used mostly for powering cars and heating also used to make plastic 3 Petroleum

LESSON Burned in electric power plants to produce electricity Gives off less pollution 3 Natural Gas

LESSON Used to heat buildings used to produce steel and concrete Most (90%) is burned in electric power plants to produce electricity Gives off pollution that forms acid rain 3 Coal

LESSON 3 Coal-Burning Power Plant Chemical PE Thermal Energy Mechanical Energy Electrical Energy

LESSON used in electrical power plants to produce electricity. nonrenewable. cleaner because it doesn’t release air pollution. dangerous if the nuclear waste is not disposed of properly. 3 Nuclear Energy is…

LESSON 3 Nuclear Power Plant Nuclear Energy Thermal Energy Mechanical Energy Electrical Energy

LESSON 3 Hydroelectric Power Plant Potential energy Kinetic energy Mechanical Energy Electrical Energy

LESSON 3 Wind Farms

LESSON 3 Solar Power

LESSON 3 Geothermal Power

LESSON 3 Tidal Power

LESSON Using less energy resources, especially those that are nonrenewable Results in reduced CO 2 emissions (page 167) 3 Energy Conservation

Lesson Review LESSON LESSON WRAP-UP Do you agree or disagree? Nuclear power plants release many dangerous pollutants into the air as they transform nuclear energy into electric energy. 3 Energy Resources Disagree. Nuclear power plants do not release pollutants into the air as they transform nuclear energy into electric energy.

Lesson Review LESSON LESSON WRAP-UP Do you agree or disagree? Thermal energy from within Earth can be transformed into electric energy at a power plant. 3 Energy Resources Agree. Hot water and steam from inside Earth can be piped to Earth’s surface where they spin turbines attached to an electric generators.

Key Concept/Essential Question Review LESSON LESSON WRAP-UP What are nonrenewable energy resources? 3 Energy Resources A nonrenewable energy resource is an energy resource that is available in a limited amount and can be used up.

Key Concept/Essential Question Review LESSON LESSON WRAP-UP What are renewable energy resources? 3 Energy Resources A renewable energy resource is replaced in nature as fast as, or faster than, it is used.

Key Concept/Essential Question Review LESSON LESSON WRAP-UP Why is it important to conserve energy? 3 Energy Resources Conserving energy, such as turning off lights when they are not needed, is one way to reduce the rate at which energy resources are used.