Science - If you rub a balloon against your hair, the balloon will steal electrons from your hair. This leaves your hair positively charged and the balloon negatively charged. Your hair will be attracted to the surface of the balloon because opposite charges attract. You will also notice that your hair stands up even if the balloon is not near them. This is because each hair is positively charged and is repelled by the hair next to it. You should also notice that after rubbing the balloon on your hair, you can get the side of your balloon that touched your hair to stick to other things like a wall or ceiling. This happens because the negative charge on the balloon will force some of the electrons in the wall to move to the other side of their atoms.