1. こうこがく   archeology, archaeology   ornithology   cosmetology   calligraphy   Hint Half-n-half Clue   2. じんるいがく   entomology   accountancy   sociology   anthropology   Half-n-half Clue   3. せんせいがく   rheology   calligraphy   astrology   aeronautics   Half-n-half Clue   4. のうしょ、のうひつ   sociology   calligraphy   archeology, archaeology   aeronautics   Half-n-half Clue   5. こんちゅうがく   entomology   aeronautics   seismology   radiology   Half-n-half Clue   6. けいざいがく   economics   etiology, aetiology   rheology   astrology   Half-n-half Clue   7. ちょうるいがく   archeology, archaeology   ornithology   accountancy   entomology   Half-n-half Clue