1. astronomia   botany   zoology   astronomy   calculus   Hint Half-n-half Clue   2. geografia   geography   zoology   trigonometry   psychology   Half-n-half Clue   3. álgebra   geology   algebra   geometry   psychology   Half-n-half Clue   4. geometria   psychology   chemistry   geometry   geology   Half-n-half Clue   5. química   chemistry   geography   biology   physics   Half-n-half Clue   6. história   history   geography   botany   zoology   Half-n-half Clue   7. zoologia   geology   zoology   algebra   chemistry   Half-n-half Clue