| 100% | VAT | 3 | Brain in a ___ (thought experiment) |
| 76% | TROLLEY | 7 | Conveyance in a famous thought experiment |
| 65% | ESP | 3 | Subj. of a thought experiment |
| 63% | IDEATED | 7 | Performed in a think tank |
| 61% | SCHRODINGERSCAT | 15 | Thought experiment in quantum physics |
| 61% | KITE | 4 | Tool in a legendary experiment |
| 61% | SOLUTE | 6 | Substance in a chemistry experiment |
| 61% | LABRAT | 6 | Rodent in a maze experiment |
| 61% | POTATO | 6 | Battery in a science experiment |
| 59% | IGOR | 4 | Obtainer of an abnormal brain in a 1974 movie |
| 59% | NEURALLY | 8 | In a way relating to the brain |
| 57% | RUMINATE | 8 | Engage in a reflective thought cycle |
| 57% | THESEUS | 7 | Ship of __; thought experiment in identity study |
| 56% | SLIT | 4 | Cut in a famous quantum-mechanics experiment |
| 56% | SENTENCE | 8 | A complete thought in writing |
| 55% | EGO | 3 | A conscious thinking subject, in metaphysics |
| 54% | REFRAMES | 8 | Looks at in a new way, like a thought |
| 54% | LAB | 3 | Room in a school where chemistry experiments are done |
| 54% | MUSHROOM | 8 | Brain __, a delicacy in parts of Scandinavia |
| 54% | IDEA | 4 | Thought generated in a brainstorm |
| 54% | DELIRIOUS | 9 | Thinking in a confused way; extremely happy |
| 54% | SCHRODINGERSCAT | 15 | Quantum mechanics thought experiment in which contradictory states exist simultaneously |
| 53% | IMPLANT | 7 | Microchip in a sci-fi character's brain, e.g. |
| 53% | SOLUTE | 6 | Dissolved substance in a chemistry experiment |
| 53% | REGARD | 6 | Think about in a particular way |
| 53% | REPLAN | 6 | Think over, in a way |
| 53% | MUSER | 5 | Thinking type, in a way |
| 52% | CHESSBOXER | 10 | Participant in a hybrid sport that requires both brains and brawn |
| 52% | ESSAY | 5 | Think piece in a newspaper or magazine |
| 51% | LAVA | 4 | What baking soda and vinegar simulate, in a classic science fair experiment |