We recently finished a specialty unit on Electricity and Magnetism. The kids got to learn all kinds of cool things.
They learned about static electricity
How to make a compass from a needle, magnet and cork
Everyone got involved.
They made an electromagnet (which promptly started to smoke and get really hot!)
We walked in our neighborhood to look at the power transfer station and the transformers.
And we talked about how power gets from the power plant to our home over these big transmission lines that we can see from our house.
And finally, we bought a set of Snap Circuits so they could learn about how various electronics worked.
It has over 100 different things they can build and learn from, so we expect hours and hours of fun. :)