Acknowledgements

Grateful acknowledgement is made to the following sources:

Photographs and images

Resource 1 : A careful look at the torch bulb: Adapted from Umthamo 3, University of Fort Hare Distance Education Project

Resource 3 : Lighting a bulb – templates and discussion: Adapted from Umthamo 3, University of Fort Hare Distance Education Project

Electric bell: http://www.bbc.co.uk/ science/ [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] (Accessed 2008)

Text

Eight feared electrocuted in Imo,from Charles Ogugbuaja, Owerri: Adapted from The Guardian, http://www.guardiannewsngr.com/ news/ article17/ 230107 (Accessed 19/06/07)

Every effort has been made to contact copyright holders. If any have been inadvertently overlooked the publishers will be pleased to make the necessary arrangements at the first opportunity.