| Electricity is a form of energy, a result of the | | | | What are conductors? They are what carry |
| existence of electrical charge. Its theory and | | | | electric charges. Most conductors have many free |
| inseparable effect is probably the most accurate | | | | electrons. A metal doorknob is an example of a |
| and complete of all scientific theories. Because of | | | | conductor. Objects that generally do not conduct |
| it, invention of motors, generators, telephones, | | | | charges are called insulators. |
| radio and television, medical gadgets, computers | | | | During a thunderstorm in 1752, Benjamin Franklin |
| and nuclear-energy systems have taken place. | | | | flew a kite that had a metal tip connected to a |
| However, the many terms and definitions of | | | | silk string that acted as a conductor. A key was |
| electricity make it quite hard to pick up by | | | | then attached to the string at a point near the |
| students. So here's an outline that can be used by | | | | ground. When Franklin touched the key it sparked |
| anyone who might have a hard time lecturing | | | | and he could feel the electricity. Note that the |
| about it. | | | | next two who tried this extremely dangerous |
| What do a TV picture and lightning have in | | | | experiment were killed. |
| common? They are caused by tiny electrically | | | | There is also a massive buildup of electrons in a |
| charged particle called electrons. This flow or | | | | cloud. You see lightning when the electrons are |
| movement of electrons is what we call as | | | | finally discharged or released to the ground. |
| electricity. Electrical charges cause television sets | | | | Where does electrical energy come from? When |
| to work and telephones to ring. | | | | you plug in an electric fan, you are not really using |
| What is static electricity? All matter is made of | | | | electricity. Instead you are using electric power. |
| atoms and tiny particles held together by electric | | | | The source of this power is a generator. Large |
| forces. Inside each atom are positively charged | | | | generators supply huge quantities of electric |
| protons and negatively charged electrons. They | | | | power to your community. |
| are attracted to each other. A buildup of positive | | | | When teaching, your goals must be straight |
| or negative charges is known as static electricity. | | | | forward. Create an outline if you have to. It gives |
| Example: When you brush your hair on a dry day, | | | | you a general flow of what you want to teach |
| you may see sparks or hear a breaking sound. | | | | and allows you to check for loopholes and |
| This happens because when you brush, many | | | | problems along the way. To prevent |
| free electrons gather in your hair. Your brush | | | | misunderstandings, ask lots of questions. As |
| does not have as many negative charges, so the | | | | teachers, your role is to ensure you are |
| charges from your hair get transferred to the | | | | effectively feeding the right information to your |
| brush. | | | | students. |