| A | B |
| Alexander Graham Bell | Invented the telephone |
| Thomas Edison | Invented the light bulb |
| Albert Einstein | His work led to atom bomb |
| Wright Brothers | Invented the airplane |
| Samuel Morse | Invented telegraph |
| Bessemer Process | A new process to make steel. |
| Free Enterprise | People free to start own business |
| Industrial Revolution | Industries made goods cheaper and faster. |
| First challenge for the Wright brothers | They knew nothing about flying. |
| Why rural areas didn't get phones. | Since one line only served two customers, it was too expensive |
| Challenge for Wright brothers at Kitty Hawk | The plane would not take off. |
| Replaced the telegraph in sending messages. | Telephone, internet, short wave radio. |
| I have not failed. I found 10,000 ways that didn't work | When I knew it wouldn't work, I tried another way. |