1. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 QOD : What is one benefit (pro) and one drawback (con) to using wind power to generate electricity? Solar power

2. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 #3.20 Aim: How does the sun make energy?

3. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 2. The mass lost transforms into energy (like in fission, in nuclear power) Fusion 1. The sun turns hydrogen into helium

4. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 Solar power 1 square meter on earth gets ~ 1 kilowatt (17 light- bulbs) of energy The sun’s energy is so strong that if only 0.1% of the earth (New Mexico + South Dakota) were covered in solar panels, we would have enough electricity for the whole world.  A map of the world showing kilowatt hours per region

5. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 How do we collect solar power? Two main ways… 1.Passive 2. Active

6. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 1. Passive solar energy collection = direct absorption of sunlight. Ex: materials chosen that absorb heat well, South-facing windows Ex: buildings designed with windows covered in deciduous plants

7. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 2. Active solar energy collection = using technology to focus, move, or store solar energy.

8. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 Is solar power renewable or non- renewable?

9. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 Passive or active? 1.With your group-mates, read about the different ways people are using solar power to take care of their energy needs. 2.For each example discuss whether you think it is active or passive solar energy collection. 3. Answer the questions on your CW

10. #3.20 Aim: How does the sun make energy? Agenda QOD (5) Lesson: solar power (15) Activity: passive and active solar (15) Summary (5) HW #27 Summary… Do you think you could implement any of these examples where you live?