1. astronomy   seibutsugakushya   tenbungakushya   rekishika   kagaku   Hint Half-n-half Clue   2. philosophy   kikagaku   tetsugaku   kagaku   doubutsugaku   Half-n-half Clue   3. geology   rekishika   kagaku   sankakuhou   chishitsugaku   Half-n-half Clue   4. physics   shinrigaku   sankakuhou   butsurigaku   tetsugaku   Half-n-half Clue   5. calculus   bisekibungaku   chishitsugaku   shyokubutsugaku   shinrigaku   Half-n-half Clue   6. psychology   shinrigaku   chirigaku   tetsugaku   chishitsugaku   Half-n-half Clue   7. geography   sankakuhou   chirigaku   shinrigaku   seibutsugakushya   Half-n-half Clue