Energy and interesting URL's
Morgan, S. (2002) Alternative energy sources. Oxford: Heinemann. p 26
Did you know silicon is a semi-conductor? In a cell - a photovoltaic cell - the thin layers of silicon on the outside walls, create electrical charges only when light hits the cell. The greater the intensity of light, the greater amount of electricity is produced. The glass type cover that covers the cell prevents the light from being reflected away from the cell.
Click on the search term to discover more information e.g. photosysthesis.
You Tube Enlightenment - The Cell
Voyage inside the cell
Full Version Inner Life of a Cell
Cells, Tissues, Organs and Systems
lists different types of alternative energy sources
TIMELINE p.58 outlines improvements in utilizing energy sources
GLOSSARY p.60 has definitions of terms in alphabetical order.
INTERESTING WEBSITES listed on p.63.
INDEX Use index to find a further search