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friday, december. 4th, 2015 Get out: Foldable Homework Pen-or-Pencil

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Presentation on theme: "friday, december. 4th, 2015 Get out: Foldable Homework Pen-or-Pencil"— Presentation transcript:

1 friday, december. 4th, 2015 Get out: Foldable Homework Pen-or-Pencil Table of contents- Concept Attainment Quiz / Project I can- Show understanding of the different pros, cons, and definitions of Alternative Energy Sources. Do Now – write down which energy source you think the world should adopt as its primary source for energy, and explain why to somebody near you.

2 Hand Signals in Class “Talking Time-Out” – Please give your attention to the teacher by looking at the teacher, making this signal with your hands, and being quiet. “One” In sign language, indicates you have a question. Please hold this up, and remain silent. I will call on you when its appropriate, or once I’ve finished with instructions. “Two” In sign language, indicates you need to use the restroom. Please hold this up, remain at your seat. and remain silent. I will call on or motion to you to retrieve the pass and quietly exit the classroom.

3 Alternative Energy Project
Points of Interest Due Friday, December 11th Must have all 5 items present and clearly identifiable to receive a 100%. The pictures can be hand drawn as long as it is clearly understandable. Prefer a printed picture, which you can do in the library. If you bring me a flash drive with the picture on it I can also print it for you. Brochure / PowerPoint / Poster Other mediums are available if you get it approved prior. Must have your parents signature at the bottom upon turning in.

4 Cons – Nuclear Higher capital costs due to safety, emergency, containment, radioactive waste. Heated waste water from nuclear plants harm aquatic life. Potential nuclear proliferation issue. Cons – Hydroelectric Power Environmental impact by changing the environment. Hydroelectric Dams are expensive to build. Dams may be affected by drought. Potential for floods. Cons – Biomass Source must be near usage to cut transportation costs. Emits some pollution as gas/liquid. Increases nitrogen oxides, an air pollutant emission. Uses some fossil fuels in conversion. Cons – Geothermal Geothermal fields found in few areas around the world. Well could eventually be depleted. Expensive start-up costs. Cons – Wind Output is proportional to wind speed. Not feasible for all geographic locations. High initial investment and ongoing maintenance costs. Extensive land use. Can be unsightly and noisy Can pose a threat to birds. Cons – Solar High initial investment Dependent on sunny weather Supplemental energy may be needed in low sunlight areas. Requires large physical space for PV cell plants. Limited availability of polysilicon for producing panels

5 Pros – Nuclear Power No greenhouse gases Very efficient at transforming energy into electricity compared to coal plants Uranium reserves are abundant Refueled yearly Pros – Hydroelectric Power No emissions Reliable Capable of generating large amounts of power Output can be regulated to meet demand Pros – Biomass Abundant supply Fewer emissions than fossil fuel supplies It can be used in diesel engines Automotive engines can easily converted to run on biomass fuel. Pros – Geothermal Produces about 1/6 the CO2 that a power plant using natural gas emits. Efficient Minimal environmental impact Pros – Wind Affordable Little disruptions of ecosystems Relatively high output Pros – Solar Non-polluting Most abundant energy source available Systems last years


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