Inflate both balloons.
Rub one balloon on the wool mitten and the other against a smooth wall.
Darken the room.
Hold a balloon in each hand and slowly move the balloons close together.
1. Why do the balloons have to be rubbed on separate things?
2. What does the wool mitten do to the balloon?
3. What does the smooth wall do to the balloon?
4. What happens when the balloons are rubbed together?