Visit this webpage and click on Voltage, Current, Resistance. You will make electric circuits on line and you can put an ammeter or voltmeter in order to check your answers in circuits you solved before. http://gwydir.demon.co.uk/jo/elect/index.htm
We are going to review what we have learnt in this link: http://www.andythelwell.com/blobz/.
This web page has information about electric circuits and activities.