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Aim: What are the pros and cons of hydropower?

Aim: What are the pros and cons of hydropower?. Hydropower Pros and cons. QOD : Listen to the song by Woody Guthrie and read the lyrics. What is this song about?. Aim: What are the pros and cons of hydropower?.

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Aim: What are the pros and cons of hydropower?

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  1. Aim: What are the pros and cons of hydropower? Hydropower Pros and cons QOD: Listen to the song by Woody Guthrie and read the lyrics. What is this song about?

  2. Aim: What are the pros and cons of hydropower? Aim: What are the pros and cons to generating electricity from hydropower?

  3. Aim: What are the pros and cons of hydropower? Objectives • SWBATlist and explain the pros and cons of hydroelectric power 3

  4. Aim: What are the pros and cons of hydropower? Pros 1. Dams are relatively inexpensive to operate. • Yet, they are very expensive to build. 2. Dams generate clean power • Hydropower is renewable and doesn’t emit greenhouse gases or other air pollutants* *What kinds of energy do you think were used to build this dam?

  5. Aim: What are the pros and cons of hydropower? Pros, continued 3. Dams improve quality of life • prevent flooding*, create jobs, and provide cheap electricity, irrigation, and drinking water

  6. Aim: What are the pros and cons of hydropower? Cons 1. Dams alter river habitats in many ways upstream: flooding downstream:not enough water

  7. Aim: What are the pros and cons of hydropower? Cons, Continued 2. Natural cycles are disrupted - floodplains don’t receive nutrients from sediments because they get trapped behind dams

  8. Aim: What are the pros and cons of hydropower? Cons, Continued 3. Temperature of the water is changed  aquatic populations go extinct

  9. Aim: What are the pros and cons of hydropower? Imagine you are a fish trying to get upstream of the Hoover dam…

  10. Aim: What are the pros and cons of hydropower? Cons, Continued 4. Dams prevent anadromous fish from laying eggs.  No fish ladder!  Fish ladder 

  11. Aim: What are the pros and cons of hydropower? What do you think: do the pros outweigh the cons?

  12. Aim: What are the pros and cons of hydropower? Modern Trends • In the US, the era of large dam construction is probably over. • Not so in developing countries (Brazil, China, India). • Micro-hydropower :electricity produced in a small stream without having to build a big dam 12

  13. Aim: What are the pros and cons of hydropower? Micro-hydropower • Much cheaper to build. • Can be used in remote areas 13

  14. Aim: What are the pros and cons of hydropower? Dams and salmon • We will read the article about dams and salmon together. • 2. Discuss questions and answers.

  15. Aim: What are the pros and cons of hydropower? What are the pros and cons of hydropower? Should we use it?

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