Rub a pvc rod with a paper towel to get a negative charge. Place the charged rods onto the rotating stands to show that unlike charges attract and like charges repel. Be careful to use the correct paper towel when rubbing each rod, as shown in the photo above. Note that after each rod has been rubbed with the paper towel an equal and opposite charge will reside on the paper towel. So be sure to keep the towel away from the rod after it has been rubbed.
Paper towels are in the dispenser by the sink.
It will spontaneously crack without mercy and become destroyed. Use a dry or slightly damp paper towel to wipe the acrylic clean. Hold the rods parallel to make them rotate with greater force, as shown in the photo below. Hold the rods together parallel, with their surfaces held close together, as shown above. This demo can be done traditionally using cats fur and rubber, and shrink wrap plastic and glass.