Through a series of demonstrations using plastic rulers, bits of paper, electroscope, foam cups, and balloons, show that neutral matter can be charged. Describe how the matter becomes charged, by the addition or subtraction of electrons. Discuss the makeup of the atom and that it is the electrons which have the ability to migrate. Illicit that the force of gravity is easily overcome by the force of the charged particles and stress that the charges are not permanent like gravity, but will dissipate over time. Introduce the concept of distance effect on the attraction/repulsion of charged particles, and that the effect of the charge is dependent on the distance. Review that like charges repel while unlike charges attract.