Enter the Blobz Guide to Electric Circuits. – developed by Andy Thelwell at Staffordshire University. This is an excellent starter for youngsters to learn electricity.
This was a Tutor that started with the early-web means after Y2K times. This also used flash very creatively to make a web multimedia interactive tutor.
You can learn about battery, wire, switch and flow of electronics and the basic concepts that make electrical and electronic circuits. This is both useful for children and older people unfamiliar with electrons and their antics.