1. zoologia   biology   psychology   philosophy   zoology   Hint Half-n-half Clue   2. calcolo   chemistry   calculus   astronomy   trigonometry   Half-n-half Clue   3. storia   algebra   psychology   botany   history   Half-n-half Clue   4. botanica   philosophy   geology   botany   algebra   Half-n-half Clue   5. psicologia   psychology   geography   chemistry   astronomy   Half-n-half Clue   6. biologia   biology   geography   history   philosophy   Half-n-half Clue   7. chimica   chemistry   zoology   geography   astronomy   Half-n-half Clue