When I rub this balloon on a jumper, it becomes negatively charged. Holding it near this uncharged wall, it repels the electrons near the surface, leaving a slight positive charge, which allows it ...

Water falls on Earth every day as rain, and now scientists seem to have found a way of using it to create renewable ...

This leaves an area of positive charge in the desk near the plastic. The negative plastic and the positive area of the desk attract. When the balloon is rubbed on hair or clothes, electrons move onto ...

6. Rub the end of the balloon on your hair or shirt. Pulling the tape from the roll causes electrons to be stripped off the tape, giving both strips a positive charge. When two objects have the same ...