Do Now for 6/4/12 HW: Complete the Three Level Reading Guide: Electricity Generation (Student sheet 64.1)

D64 Electricity Generation Introduce D64 Video Clip Readings

D64 Electricity Generation Where does the electricity we use in our homes come from? What potential energy was the electricity in your home transformed from? Think about the many sources of electrical energy, and list as many as you can in your notebook.

What do you know about how electricity is generated (made)? When we generate electricity, are we creating energy?

D64 Electricity Generation

D64 Electricity Generation

D64 Electricity Generation Examples of renewable sources of energy: Biomass, Geothermal, Hydro-electric ,Solar thermal, Solar photovoltaic, Tidal Harness, Wind Energy Read about all the different forms of electrical energy generation on page D-54 through 61. Complete the Three Level Reading Guide: Electricity Generation (Student sheet 64.1) from your packet of data tables. Complete for homework.

Do Now for 6/5/12 Take out Three Level Reading Guide HW: Complete Analysis 1 through 4 on page D-62.

D64 Electricity Generation Check and discuss HW. Jigsaw Activity. Complete Analysis 1 through 4 on page D-62.

D64 Electricity Generation Jigsaw Activity: Fill out your part of the Comparing Energy Sources chart. Meet with other students in the room who had the same energy sources you did and compare your information. Add anything to your information that you missed. Return to your lab group and share your information with the rest of the team.

D64 Electricity Generation Complete analysis 1 through 4 for HW Rubrics for questions 3 and 4

Do Now for 12/9/11 Take out your analysis questions for D64 HW: Expanded answers for 3 and 4a and b are due Tuesday.

D64 Electricity Generation Check HW Expanded answers for 3 and 4 (Due tomorrow) Key points Vocabulary Complete 3 and 4

D64 Electricity Generation 1. Which energy sources are: a. renewable? Biomass, geothermal, hydroelectric, solar, tidal, wind b. nonrenewable? Fossil fuels and nuclear energy

D64 Electricity Generation 2. Which type of electrical energy generation do you feel has: a. the most important advantage? Some important advantages of nonrenewable fuels are the high energy output and an established infrastructure. Advantages of renewable energies are reduced environmental damage.

D64 Electricity Generation b. the greatest disadvantage? The greatest disadvantage of a specific nonrenewable energy sources is its environmental harm. Some renewable resources could be considered to have has the greatest disadvantage because of not working in all locations, having lower energy output, and lacking an infrastructure.

D64 Electricity Generation Complete 3 and 4 for tomorrow. Use the Rubric Feedback Forms to guide you.

D64 Electricity Generation – Key Concepts 1. Energy is associated with heat, light, electricity, mechanical motion, sound, nuclei, and the nature of a chemical. 2. In most reactions, energy is transferred into or out of a system. 3. Technological solutions have benefits and consequences.

D64 Electricity Generation – Key Concepts 4. People and societies make decisions based on perceived risks and benefits. 5. Technology influences society through its products and processes. For example, the efficiency of electricity generation impacts the economy and the environment. 6. Science cannot answer all questions, and technology cannot solve all problems or meet all needs.

D64 Electricity Generation - Vocabulary 1. Advantage: A property that, in your opinion, is good. 2. Biomass: Material from living things, such as plants and animals, that is used as a source of fuel. 3. Disadvantage: A property that, in your opinion, is not good. 4. Fossil fuel: A fuel produced by living plant materials that have been buried and changed by heat and pressure under layers within the earth over millions of years of time. Natural gas, petroleum, and coal are examples of fossil fuels.

D64 Electricity Generation - Vocabulary 5. Generator: A machine for making electricity, generally by the circular movement of a turbine, driven by steam or water, connected to a magnet that revolves inside another magnet. When a magnet moves inside another magnet, an electric current results. This current can be transmitted for immediate use, or stored for later use. 6. Hydroelectric power: Energy is generated by moving water which turns the blades of a turbine, which generates electricity. 7. Non-renewable resources: Materials that cannot be easily or quickly replaced by natural systems, such as petroleum, coal, natural gas, and many minerals. 8. Power plant: A facility that transforms energy into electricity and distributes it to the surrounding area.

D64 Electricity Generation - Vocabulary 9. Renewable resource: A source of material that can easily be produced again and again in nature, such as wood, solar and hydroelectric power, and food crops. 10. Solar energy: Energy that comes from the sun. 11. Turbine: Any of many machines that use kinetic energy from moving wind, water, steam, or gas to generate mechanical energy. A turbine is made of paddles, buckets, or blades attached to a wheel that turns to produce mechanical energy. Turbines can be used to drive electric generators that transform the mechanical energy into electrical energy. 12. Wind energy: Energy from the wind that causes a turbine to turn in order to generate electricity.