| A | B |
| matter | anyhing that has mass and occurpies space |
| atoms | the building blocks of matter |
| proton | positively charged particle in an atom |
| electron | negatively charged particle in an atom |
| ion | a charged atom |
| battery | a device that produces electricity by converting chemical energy to electrical energy |
| ohm | unit of measure for resistance |
| amp | unit of measure for current |
| static electricity | build up of charge on an object |
| rate at which work is done or energy is used | power |
| one thousand watts | one kilowatt |
| lightning | a huge electric discharge |
| conductor | material which permits electrons to flow freely |
| insulator | materials which do not permit electrons to flow freely |
| fuse | a safety device that contains a thin strip of metal |