1. géométrie   chemistry   calculus   astronomy   geometry   Hint Half-n-half Clue   2. biologie   psychology   geography   biology   philosophy   Half-n-half Clue   3. géographie   astronomy   calculus   geography   zoology   Half-n-half Clue   4. géologie   zoology   trigonometry   biology   geology   Half-n-half Clue   5. botanique   botany   trigonometry   geology   geography   Half-n-half Clue   6. histoire   geography   history   botany   chemistry   Half-n-half Clue   7. algèbre   algebra   geometry   astronomy   philosophy   Half-n-half Clue