| 01 | The scientific method | 65.1 |
| 02 | logic | 52.5 |
| 03 | Cause and effect | 51.6 |
| 04 | Mathematics | 44.0 |
| 05 | language | 42.2 |
| 06 | symbolic communication | 27.7 |
| 07 | numbers | 26.2 |
| 08 | Evolution | 25.3 |
| 09 | Writing | 25.1 |
| 10 | Heliocentrism | 24.6 |
| 11 | Empiricism | 23.0 |
| 12 | Evidence | 23.0 |
| 13 | abstraction | 22.6 |
| 14 | history.com | 21.4 |
| 15 | Evolution by natural selection | 21.3 |
| 16 | Atomism | 20.7 |
| 17 | inference | 20.3 |
| 18 | measurement | 17.7 |
| 19 | falsifiability | 17.5 |
| 20 | Universal Laws | 16.9 |
| 21 | Proof | 16.9 |
| 22 | Classification | 15.8 |
| 23 | time.com | 15.4 |
| 24 | symbols | 14.4 |
| 25 | Information | 14.0 |
| 26 | Computation | 13.8 |
| 27 | relativity | 13.8 |
| 28 | Probability and uncertainty | 13.6 |
| 29 | uncertainty | 13.5 |
| 30 | The scientific method, empiricism, and rational inquiry | 13.4 |