2. Warm Up 1. Turn in your Fracking Debate worksheet and writing assignment to the basket. 2. List 2 things that you learned during the debates that you didn’t know before we started. Time’s Up!

3. Daily Outline  Fracking debate super final!  Burning stuff!  Nuclear energy

4. Nuclear Energy (Uranium)

5. Nuclear Fusion  Combining 2 atoms  Some mass changed into energy  Much more energy than fission  Requirements  High speed collisions  High temperatures  Occurs naturally  Sun/stars  Limits to use  High temperatures  No container  Requires lots of energy  Enormous potential but not yet realistic

6. Warm Up 1. What’s the difference between nuclear fusion and nuclear fission? 2. What are 3 things you know about solar energy? Time’s Up!

7. Nuclear Fission  1 atom to 2  Chain reaction Chain reaction  Where?  Reactors  Power plants  Submarines  Aircraft carriers  Satellites  Generates electricity  Creates nuclear waste

8. Nuclear Fission Advantages (Pros) Disadvantages (Cons)

9. Solar Energy

10. Solar  Where?  Passive  Greenhouses  South-facing windows  Absorbing materials  Solar heat power plants

12. Photovoltaics (active solar)  Movement of electrons  Where?  Buildings  Farms  Space  Schools  Cost

13. Photovoltaics – Active Solar  Advantages  Disadvantages

14. Wind Energy

15. Wind  What is wind?  Indirect sunlight energy  Uneven heating of Earth’s surface = air movement

16. Wind  How is it used?  Wind turbines  Spin blades  Turn turbine  Spin coil in a magnet/generator

17. Wind  Where is it used?  Individually  Farms  Water  Electricity

18. Wind  Designs

19. Wind  Advantages  Disadvantages

20. Windmill Blade Design Challenge!  Your team will research and build a set of windmill blades.  The team who’s blades lift the most washers wins!  Things to consider:  Number of blades  Shape of blades  Length of blades  Angle (pitch) of blades  Spacing from attachment  Homework: Create 2 initial designs for you wind turbine.

21. Windmill Blade Design Challenge!  Today you will…  Build your turbine  Test your turbine  Make modifications  Re-test  Make modifications  Re-test  You have all class to test and modify. You must test at least three times and modify at least twice, but if you have extra time feel free to continue modifying and testing!!