| OOLOGY | Scientific study of eggs (6) |
| COCKATOOOOLOGY | The study of eggs from certain parrot relatives? |
| OPTICS | Scientific study of the behaviour of light (6) |
| BOTANY | Scientific study of the structure, ecology, distribution, classification and economic importance of plants (6) |
| SKYLAB | Station's scientific study of television by 1970s spacers? (6) |
| GEOLOGY | Scientific study of the structure of the earth, especially by examination of its rocks (7) |
| GERONTOLOGY | Scientific study of process of growing old (11) |
| PHYSIOLOGY | Scientific study of the normal functioning of organisms (10) |
| ASTROPHYSICS | Scientific study of the observation of celestial bodies (12) |
| CHEMISTRY | The scientific study of the structure of substances (9) |
| ETHNOGRAPHY | Branch of anthropology dealing with the scientific study of different human cultures and groups (11) |
| ASTRONOMY | Derived from the Greek meaning "law of the stars", the scientific study of celestial objects and the universe (9) |
| HYETOLOGY | Scientific study of the origin, structure, and other features of rainfall (9) |
| CYTOLOGY | Scientific study of the structure, functions etc. of plant and animal cells (8) |
| ROCKETRY | Scientific study of pile of stones in Thailand? Quite the opposite |
| ANTHROPOLOGY | Scientific study of humans and their way of life (12) |
| METALLURGY | The scientific study of the properties and uses of hard substances such as gold and iron (10) |
| OOLOGIST | Person involved in the collection or scientific study of bird eggs (8) |
| ENTOMOLOGY | Scientific study of insects, of which Reverend William Kirby is generally considered the founder (10) |
| MYCOLOGY | Branch of botany concerned with the scientific study of fungi (8) |
