Earlier this week I shared a short video explanation of how light bulbs work. To extend that lesson you might want to take a look atElectric Circuits from Hyperstaffs. On the Electric Circuits site your students can learn about the power sources used by common household products and then safely experiment with the creation of electric circuits. Electric Circuits presents students with a circuit to construct by using virtual power sources and switches.
See on www.freetech4teachers.com