| A | B |
|---|
| genius | a person who can imagine, create and do more things faster than other people |
| laboratory | a special room in which scientists work |
| mechanics | people who work on machines |
| closet | a place where people put their clothes |
| lightbulb | a glass object inside a lamp that produces light |
| naps | when a person sleeps for a short time |
| telegraph | a system for sending messages over long distances |
| hired | employed someone to work in a job |
| motion pictures | movies |
| wax paper | paper with candle wax on it |
| fire alarms | electronic devices that alert people to smoke and fire |
| chemist | a person who studied chemistry |
| phonograph | an old invention to play records |
| invention | a new machine |
