1. physique   biology   physics   botany   zoology   Hint Half-n-half Clue   2. géographie   botany   geography   astronomy   physics   Half-n-half Clue   3. botanique   botany   history   psychology   geometry   Half-n-half Clue   4. géologie   history   chemistry   geology   philosophy   Half-n-half Clue   5. calcu   history   biology   geology   calculus   Half-n-half Clue   6. géométrie   geography   philosophy   biology   geometry   Half-n-half Clue   7. psychologie   chemistry   psychology   botany   algebra   Half-n-half Clue