Related Clues:
- It's sometimes fuzzy
- Clear thinking
- Sudoku solving skill
- Aristotle subject
- Aristotelian subject
- Sound reasoning
- Bill Nye is known as "The ___ Guy"...
- Social __
- "Nova" subject
- Holmes specialty
- Journal with an annual 'Breakthrough of the Year' award
- Physics, e.g.
- Fair subject
- Poirot's forte
- Paleontology or archaeology, e.g.