This is a great way to promote higher thinking and problem solving while reviewing properties of conductors and insulators.
PowerPoint includes refresher guided notes on what conductors and insulators are before student do the activity.
I print out the Riddle pages from the powerpoint 4 per page and cut them apart and tape them around the room.
Student then must go around the room and using the clues figure out what the object is and then decide if it's a conductor or insulator.
Then as a class we review the answers to the riddles
My 6th grade classes really enjoyed this
For my AIG class they weren't allowed to talk during the activity and my EC students where given a list of all the answer words as help.