1. だいすうがく   chemistry   algebra   calculus   psychology   Hint Half-n-half Clue   2. びせきぶんがく   geometry   calculus   geology   biology   Half-n-half Clue   3. しんりがく   geometry   algebra   zoology   psychology   Half-n-half Clue   4. ちしつがく   algebra   history   geometry   geology   Half-n-half Clue   5. てんぶんがくしゃ   astronomy   calculus   algebra   chemistry   Half-n-half Clue   6. せいぶつがくしゃ   physics   philosophy   trigonometry   biology   Half-n-half Clue   7. しょくぶつがく   biology   geology   botany   algebra   Half-n-half Clue