| A | B |
| atom | very tiny parts that make up matter |
| proton | posotive electric charges within the nucleus of an atom |
| neutron | a particle in the nucleus that has no electric charge |
| electron | a particle with a negative electric chargethat moves around the nucleusof an atom. |
| electricity | a form of energy caused by the movment of electrons from one objects to another. |
| static electricity | the positive or negotiveelectric charges in an object |
| current electricity | the flow of electrons through substances |
| kilo | one thousandth of a base unit |