Key+Words


 * Plugging into the Sun**
 * Fossil Fuel**


 * Green house gases**


 * Combustion**


 * Chemical Compound**


 * Element**


 * Chemical Reaction**


 * Chemical Equation**

**Do you turn off the Lights?**
 * Electric Charge -** Parts of an atom. Atoms are composed of electrons that have negative electric charges, protons that have positive electric charges, and neutrons that have neutral electric charges.


 * Electric Force** - Force that causes charged materials or objects to repel or attract each other.


 * Static Charge** - An object's excess of positive or negative charge.


 * Static Electricity** - Occurs due to an imbalance of positive or negative charges.


 * Charging by Friction** - When two neutral objects rub together, electrons are transferred from one object to the other so that they become charged.


 * Charging by Conduction** - When a charged object touches a neutral object and the neutral object becomes charged.


 * Charging by Induction** - When a charged object is brought close to a neutral object, electrons in the neutral object can move to new positions so that the neutral object becomes temporarily charged. (The areas of charge cause by induction are called induced charges).


 * Charge polarization or Electrically polarized** - When "centers of charge" are moved.


 * Static discharge** - Loss of static charge


 * Grounding** - Connecting a charged object to a much larger conducting material. Through grounding, a charged object will return to a neutral state.