1. calcolo   algebra   physics   calculus   botany   Hint Half-n-half Clue   2. geologia   geology   biology   chemistry   calculus   Half-n-half Clue   3. botanica   physics   botany   geography   astronomy   Half-n-half Clue   4. psicologia   biology   algebra   geography   psychology   Half-n-half Clue   5. filosofia   geography   history   philosophy   geology   Half-n-half Clue   6. geometria   philosophy   geometry   algebra   geology   Half-n-half Clue   7. storia   history   geology   botany   astronomy   Half-n-half Clue