Electricity

http://thefusebox.northernpowergrid.com/page/circuitbuilder.cfm
http://scienceofeverydaylife.discoveryeducation.com/views/other.cfm?guidAssetId=D1507F6E-09C3-4E7B-B1E9-16708E402009
http://www.physics-chemistry-interactive-flash-animation.com/electricity_electromagnetism_interactive/components_circuits_association-series_parallel.htm
http://www.bbc.co.uk/schools/ks2bitesize/science/physical_processes/
http://www.brainpop.com/technology/energytechnology/energysources/
http://www2.scholastic.com/browse/article.jsp?id=2847
http://teacher.scholastic.com/dirt/circuits/whatcirc.htm
http://www.thetech.org/exhibits/online/topics/1xa_flash.html
http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/electricity/circuitsact.shtml
http://www.bbc.co.uk/bitesize/ks2/science/physical_processes/changing_circuits/play/
http://www.sciencekids.co.nz/gamesactivities/circuitsconductors.html