1. kagenteikouki   rheology   accountancy   etiology, aetiology   ornithology   Hint Half-n-half Clue   2. jishingaku   etiology, aetiology   archeology, archaeology   rheology   seismology   Half-n-half Clue   3. chyouruigaku   seismology   ornithology   aeronautics   entomology   Half-n-half Clue   4. keizaigaku   rheology   radiology   choreography   economics   Half-n-half Clue   5. koukogaku   etiology, aetiology   theology   archeology, archaeology   seismology   Half-n-half Clue   6. shyakaigaku   anthropology   sociology   entomology   etiology, aetiology   Half-n-half Clue   7. ingakankeigaku   etiology, aetiology   cosmetology   telegraphy   aeronautics   Half-n-half Clue