1. géographie   algebra   biology   chemistry   geography   Hint Half-n-half Clue   2. trigonométrie   zoology   trigonometry   botany   history   Half-n-half Clue   3. calcu   astronomy   geography   geology   calculus   Half-n-half Clue   4. géométrie   physics   biology   trigonometry   geometry   Half-n-half Clue   5. chimie   trigonometry   chemistry   zoology   history   Half-n-half Clue   6. géologie   astronomy   philosophy   geology   physics   Half-n-half Clue   7. histoire   zoology   history   chemistry   physics   Half-n-half Clue