| What's the Correct Order? | Choices |
| 1. (1492) | The Americas |
| 2. (John Walker 1827) | Friction Matches |
| 3. (Charles Goodyear 1844) | Play Doh |
| 4. (William Morton 1846) | Pacemaker |
| 5. (Oil workers c. 1850s) | Vaseline |
| 6. (Henri Becquerel 1896) | Radioactivity |
| 7. (Alexander Fleming 1928) | Penicillin |
| 8. (Percy Spencer 1954) | Vulcanized rubber |
| 9. (Noah and Cleo McVicker 1956) | Anesthesia |
| 10. (Wilson Greatbatch 1962) | Microwave |