1. géométrie   biology   botany   psychology   geometry   Hint Half-n-half Clue   2. histoire   geometry   chemistry   trigonometry   history   Half-n-half Clue   3. astronomie   calculus   history   geography   astronomy   Half-n-half Clue   4. philosophie   zoology   philosophy   biology   trigonometry   Half-n-half Clue   5. calcu   history   geometry   calculus   geology   Half-n-half Clue   6. physique   geology   physics   geometry   history   Half-n-half Clue   7. psychologie   psychology   chemistry   geometry   zoology   Half-n-half Clue