For unit 3, we learned about electricity by
having fun with static electricity
making an electroscope,
testing materials as conductors and building circuits.
We skipped a few things including the uses for static electricity activity, the lightning in your mouth demonstration, and the burglar alarm activity.
A tip for this unit... make sure your batteries are brand new or you'll have trouble getting the circuits to work.
Unit 4 was all about magnetism. We skipped the experiments from lessons 17 and 18 and used the Fun with Magnets kit (scheduled in MFW) instead.
The youngling and padawan LOVED this magnet kit. I'll pull it out again for review when we get to those weeks in the MFW schedule.
We continued in the unit and made our own compass,
and made our own electromagnet.