| 01 | Energy | 86.8 |
| 02 | Evolution by natural selection | 70.9 |
| 03 | correlation vs. causation | 67.4 |
| 04 | Theory of Relativity | 62.7 |
| 05 | The scientific method | 61.4 |
| 06 | uncertainty | 60.6 |
| 07 | Quantum Mechanics Basics | 59.4 |
| 08 | ecosystems | 52.5 |
| 09 | Probability and Statistics | 52.3 |
| 10 | Atomic Theory | 47.7 |
| 11 | Chemical bonding and reactions | 46.7 |
| 12 | Entropy and the Second Law of Thermodynamics | 45.3 |
| 13 | plate tectonics | 43.7 |
| 14 | Systems Thinking | 41.7 |
| 15 | Homeostasis and feedback | 39.4 |
| 16 | The Periodic Table | 39.2 |
| 17 | Genetics and DNA | 35.4 |
| 18 | Cell Theory | 35.4 |
| 19 | Scientific models and theories | 31.5 |
| 20 | Mass Conservation | 29.0 |
| 21 | falsifiability | 29.0 |
| 22 | Conservation Laws | 29.0 |
| 23 | Momentum | 29.0 |
| 24 | Matter and atoms | 25.6 |
| 25 | DNA | 22.3 |
| 26 | Laws of thermodynamics and entropy | 22.3 |
| 27 | RNA | 22.3 |
| 28 | The Central Dogma of Molecular Biology | 22.3 |
| 29 | Proteins | 22.3 |
| 30 | Forces, motion, and fields | 22.2 |