1. ちりがく   geography   trigonometry   history   psychology   Hint Half-n-half Clue   2. てんぶんがくしゃ   calculus   astronomy   botany   chemistry   Half-n-half Clue   3. しんりがく   geometry   history   calculus   psychology   Half-n-half Clue   4. れきしか   philosophy   geography   psychology   history   Half-n-half Clue   5. ぶつりがく   physics   philosophy   chemistry   geometry   Half-n-half Clue   6. かがく   calculus   botany   chemistry   geology   Half-n-half Clue   7. ちしつがく   biology   geography   geology   history   Half-n-half Clue