1. By Natalie Hoover, Jazmin Devlin, Claire Diesman, Ellen Lucchesi Photovoltaic (PV) Cells

2. What does PV stand for? What does a photovoltaic cell use to make energy?

3. The First Photovoltaic Cell In the early 1880s, Charles Fritts invented the first PV cell by putting a layer of selenium on a metal plate and coating it with gold leaf. Sunlight + Selenium = Electricity History

4.  Who created the PV cells that were used to make the sunball?

5. What is the name for sunlight particles? What is a common element and semi-conductor used in solar panel construction?

6.  Based on what they knew about black materials capturing the sun's heat energy, they couldn't see how a cell that wasn't black could use the sun's light to make electricity.

7.  What is designed to supply electricity at a certain voltage?  What is the name of the process in which photovoltaic cells convert light into energy?

8. Solar energy is converted into electricity directly in these cells. It contains to plates, one rich in electrons and one rich in a known substance called selenium. How it is used

9. What form of energy do solar panels turn sunlight into? What is captured for electricity when light hits PV cells on a solar panel?

10. It is used in designing and engineering in replacement of everyday energy lighting systems such as solar electric products. Some use it in satellites When it is used

11. What did NASA use solar panels for?

12.  It is used on top of buildings for electricity substitutes.  The sun ball also has a significantly lower cost than normal solar panels. Where its used

13.  To save energy in the growing modern environments.  Used to power calculators and watches. Why its used

14. Solar cube/sun ball Semiconductors are similar to those used in computer chips. Systems; solar hot water, solar electricity, passive solar heating and day lighting, and space heating and cooling New and Advanced Technology

15.  http://www.fsec.ucf.edu/en/consumer/solar_electricity/ basics/how_pv_cells_work.htm http://www.fsec.ucf.edu/en/consumer/solar_electricity/ basics/how_pv_cells_work.htm  http://www.nrel.gov/learning/re_photovoltaics.ht ml http://www.nrel.gov/learning/re_photovoltaics.ht ml  http://science.nasa.gov/science-at- nasa/2002/solarcells/ http://science.nasa.gov/science-at- nasa/2002/solarcells/  http://inventors.about.com/library/inventors/blso lar3.htm http://inventors.about.com/library/inventors/blso lar3.htm  http://pesn.com/2006/02/01/9600228_Sun_Ball_ Released/ http://pesn.com/2006/02/01/9600228_Sun_Ball_ Released/References

16. References  Practical Photovoltaics Electricity From Solar Cells by Richard J. Komp, PHD  Green from the Ground up by David Johnston and Scott Gibson  Environmental Science by Pearson  Solar Electricity Handbook - 2011 Edition by Michael Boxwell  Electricity from Sunlight: An Introduction to Photovoltaics by Paul A. Lynn