| A | B |
|---|
| skyscraper | very tall buildings |
| invention | something made for the first time |
| Elisha Otis | created a safe elevator by inventing brakes |
| Henry Bessemer | invented a way to turn iron into steel |
| Andrew Carnegie | produced large amounts of steel |
| Thomas Edison | invented the light bulb |
| William le Baron Jenney | built the first skyscraper |
| Home Insurance Company Building | the first skycraper built |
| Alexander Graham Bell | invented the telephone AND started a school for deaf children |
| compare | to tell how things are alike |
| contrast | to tell how things are different |
| Jane Addams | started Hull House |
| Louis Pasteur | French scientist who discovered germs |
| pasteurization | the process that makes foods safe by stopping germs from growing in them |
| Charles Drew | found a way to save blood and started the American Red Cross Blood Program |
| vaccine | a shot made from dead or weakened germs of a disease |
