ELECTRICAL CHARGES

There are two types of electrical charge: positive and negative. Negative charges can move from one place or object to another.

-If an object has more positive than negative charges, it is positively charged.
-If an object has more negative than positive charges, it is negatively charged.
-If an object has the same number of positive and negative charges, it is neutral.


Objects with opposite charges attract each other, and objects with the same charges repel each other.

If we rub an object with something made from a different material, we make electrical charges move, creating static electricity.


For example, if you rub a balloon onto your hair, negative charges move from tour hair onto the balloon. Your hair becomes positively charged and the balloon becomes negatively charged. You can stick the balloon to your hair, and your hair stands on end.