One type of static electricity is the lightning in a thunder and lightning storm. clouds become negatively charged as ice crystals inside the clouds rub up against each other. meanwhile, on the ground, the positive charge increases. the clouds get so highly charged that the electrons jump from the ground to the cloud, or from one cloud to another cloud. this causes a huge spark of static electricity in the sky that we call lightning. which simple experiment could be conducted to show an example of how lightning is created? a) rub a balloon so it picks up extra electrons from the sweater or your hair and becomes slightly negatively charged. b) rub a balloon filled with air on a wool sweater or on your hair. then hold it up to a wall. c) connect the positive pole of an electrical source to the negative pole, so you create a circuit. d) walk across a carpet, shuffling your feet and touching something made of metal.