Circuit
Links
http://www.myschoolhouse.com/courses/O/1/68.asp
http://www.hantsfire.gov.uk/circuits
http://scifiles.larc.nasa.gov/text/kids/Problem_Board/problems/electricity/circuits2.html
http://science.howstuffworks.com/environmental/energy/circuit.htm
http://users.stargate.net/~eit/kidspage.htm
worksheet
http://www.bbc.co.uk/schools/podsmission/electricity/annie02.shtml
Game
http://www.sciencekids.co.nz/gamesactivities/circuitsconductors.html