| A | B |
|---|
| proton | positively charged particle |
| opposite charges | attract |
| same charges | repel |
| conductor | metal |
| insulator | rubber eraser |
| electron | negatively charged particle |
| neutron | no charge |
| matter | everything that takes up space |
| atom | smallest part of matter |
| circuit | path that electrons flow through |
| current | the movement of electrons along a path |
| static discharge | occurs when electrons jump |
| switch | opens and closes a circuit |
| open circuit | will not light a lightbulb |
| closed circuit | will light a light bulb |
| semi conductor | electrons flow through, but not very well |
