1. zoologia   zoology   astronomy   chemistry   botany   Hint Half-n-half Clue   2. filosofia   geometry   philosophy   calculus   geology   Half-n-half Clue   3. física   botany   physics   algebra   biology   Half-n-half Clue   4. química   chemistry   physics   trigonometry   astronomy   Half-n-half Clue   5. trigonometria   astronomy   trigonometry   botany   physics   Half-n-half Clue   6. psicologia   psychology   geology   geometry   calculus   Half-n-half Clue   7. álgebra   algebra   history   biology   physics   Half-n-half Clue