1. しんりがく   history   trigonometry   chemistry   psychology   Hint Half-n-half Clue   2. さんかくほう   zoology   chemistry   trigonometry   biology   Half-n-half Clue   3. どうぶつがく   psychology   history   zoology   astronomy   Half-n-half Clue   4. だいすうがく   calculus   philosophy   chemistry   algebra   Half-n-half Clue   5. てつがく   geography   philosophy   geometry   zoology   Half-n-half Clue   6. ちしつがく   psychology   geography   geology   philosophy   Half-n-half Clue   7. ぶつりがく   calculus   astronomy   physics   botany   Half-n-half Clue