| A | B |
| atom | smallest part of an element that still has the properties of the element |
| proton | particle in the atom with a positive electrical charge |
| neutron | particle in the atom with a neutral (no) electrical charge |
| electron | particle in the atom that has a negative electrical charge |
| static electricity | buildup of electric charges on a surface produced by transferring charges from one material to another |
| lightning | visible flash created from the discharge of the current between areas of opposite charges; between clouds or from cloud to ground |
| discharge | sudden movement of electric charges from one object to another object |
| repel | push away |
| attract | move towards |
| insulator | material that does not let charges flow through it easily (rubber, plastic, glass) |
| conductor | material that lets charges flow through it easily ( metals) |
| matter | anything that has mass and takes up space |
| electric charge | amount of electricity in or on an object |