Branches of Science is important topic for many competitive exams. Here we provide the list of important science branches that have to be asked in all competitive exams like UPSC,SSC,RRB,APPSC/TSPSC and other state public service exams. Aspirants who are preparing competitive exams must know about branches of science. Aspirants go through below table and study.
The List of Important Science Fields:
| SL NO | Branch of Science | Deals |
| 1. | Acarology | Science that deals with the study of mites and ticks |
| 2. | Accidence | Study of Grammar |
| 3. | Acology | Science that deals with the remedies or therapeutics |
| 4. | Acoustics | Science of sound |
| 5. | Adenology | Science that deals with the study of glands |
| 6. | Aedoeology | Study of generative organs |
| 7. | Aerobiology | Study of airborne organisms |
| 8. | Aerodynamics | Science of movement in a flow of air or gas |
| 9. | Aerology | Study of the atmosphere |
| 10. | Aeronautics | Study of navigation through air or space |
| 11. | Agriology | The comparative study of primitive peoples |
| 12. | Agrobiology | Study of plant nutrition |
| 13. | Agrology | Study of agricultural soils |
| 14. | Agronomy | Science that deals with the production of crops |
| 15. | Agrostology | Study of grasses |
| 16. | Alethiology | Study of truth |
| 17. | Algedonics | Science that deals with pleasure and pain |
| 18. | Algology | Science that deals with the study of algae |
| 19. | Anaesthesiology | Study of anesthetics |
| 20. | Anatomy | Study of internal structure of the body |
| 21. | Andragogy | Theory and practice of education of adults |
| 22. | Anemology | Study of wind |
| 23. | Angiology | Study of blood flow and lymphatic system |
| 24. | Anthropology | Study of human societies, cultures and their development |
| 25. | Aphnology | Science of wealth |
| 26. | Apiology | Study of bees |
| 27. | Arachnology | Scientific Study of spiders |
| 28. | Archaeology | Study of ancient and recent human past through material remains/ Study of ancient civilizations from the ruins of old buildings and monuments. |
| 29. | Archology | Science of the origins of government |
| 30. | Arctophily | Practice of collecting teddy bears |
| 31. | Areology | Study of planet Mars |
| 32. | Aretaics | The ethical theory which excludes all relations between virtue and happiness (The science of virtue) |
| 33. | Astacology | The study of crayfish |
| 34. | Astheniology | Study of diseases of weakening and aging |
| 35. | Astrogeology | Study of extraterrestrial geology |
| 36. | Astrology | Art of prediction by analyzing the effect of heavenly bodies upon the destiny of man. |
| 37. | Astrometeorology | Study of effect of stars on climate |
| 38. | Astronomy | Study of celestial bodies |
| 39. | Astrophysics | Study of behavior of interstellar matter |
| 40. | Astroseismology | Study of oscillations in stars |
| 41. | Autecology | Study of individual organism and individual species |
| 42. | Autology | Scientific study of oneself |
| 43. | Axiology | Science of the ultimate nature of value |
| 44. | Bacteriology | Study of bacteria |
| 45. | Barodynamics | Science of the support and mechanics of bridges |
| 46. | Barology | Study of gravitation |
| 47. | Bibliography | Study of books |
| 48. | Bibliotics | Scientific study of handwriting,documents to determine authenticity |
| 49. | Biochemistry | The study of the chemical of physio-chemical process and products involved in the life phenomena of plants and animals. |
| 50. | Bioecology | Study of interaction of life in the environment |
| 51. | Biology | Study of life and organisms |
| 52. | Biometrics | Study of biological measurement |
| 53. | Bionomics | Study of organisms interacting in their environments |
| 54. | Botany | Study of plants |
| 55. | Bromatology | Study of food |
| 56. | Brontology | Scientific study of thunder |
| 57. | Cacogenics | Study of racial degeneration |
| 58. | Caliology | Study of bird’s nests |
| 59. | Calology | Study of man’s beauty |
| 60. | Cambistry | Science of international exchange |
| 61. | Campanology | Art of r practice of bell ringing |
| 62. | Cardiology | Study of heart |
| 63. | Caricology | Study of sedges(plant) |
| 64. | Carpology | Study of seeds and fruits |
| 65. | Cartography | Science of making maps |
| 66. | Cartophily | Hobby of collecting cigarette cards and picture cards |
| 67. | Catacoustics | Science of echoes and reflected sounds |
| 68. | Catechectics | Art of teaching by question and answer |
| 69. | Cetology | Study of whales and dolphins |
| 70. | Chalcography | Art of engraving on copper or brass |
| 71. | Chemistry | Study of properties of substances |
| 72. | Chrematistics | Study of wealth; political economy |
| 73. | Climatology | Study of climate |
| 74. | Clinology | Study of aging or individual decline after maturity |
| 75. | Codicology | Study of manuscripts and their interrelationship |
| 76. | Coleopterology | Branch of entamolgy Study of beetles and weevils |
| 77. | Cometology | Study of comets |
| 78. | Cosmetology | Study of cosmetics |
| 79. | Cosmology | Study of the universe |
| 80. | Craniology | Study of skulls |
| 81. | Criminology | Study of crime |
| 82. | Cryobiology | Study of life under cold climate |
| 83. | Cryptology | Science of secret writing or Study of codes |
| 84. | Ctetology | Branch of biology that deals with the origin and development of of acquired characteristics |
| 85. | Cytology | Study of living cells |
| 86. | Dactyliology | Study of rings |
| 87. | Dactylography | Study of fingerprints |
| 88. | Dactylology | Study of sign language |
| 89. | Demography | Study of Population |
| 90. | Demology | Study of human behaviour |
| 91. | Dendrochronology | Study of tree rings |
| 92. | Dendrology | Study of trees |
| 93. | Dermatoglyphics | Study of skin patterns and fingerprints |
| 94. | Dermatology | Study of skin |
| 95. | Desmology | Study of ligaments |
| 96. | Diagraphics | Art of making diagrams or drawings |
| 97. | Diplomatics | Science of deciphering ancient writings and texts |
| 98. | Ecclesiology | Study of church affairs |
| 99. | Ecology | Study of environment |
| 100. | Economics | Study of material wealth |
| 101. | Edaphology | Study of soils |
| 102. | Egyptology | Study of ancient Egypt |
| 103. | Ekistics | Study of human settlement |
| 104. | Electrochemistry | Study of relations between electricity and chemicals |
| 105. | Electrostatics | Study of static electricity |
| 106. | Embryology | Study of embryos (womb) |
| 107. | Endemiology | Study of local diseases |
| 108. | Endocrinology | Study of glands |
| 109. | Entomology | Study of insects |
| 110. | Epistemology | Study of grounds of knowledge |
| 111. | Eremology | Study of deserts |
| 112. | Ergology | Study of effects of work on humans |
| 113. | Ergonomics | Study of people at work |
| 114. | Eschatology | Study of death; final matters |
| 115. | Ethnogeny | Study of origins of races or ethnic groups |
| 116. | Ethnology | Study of cultures |
| 117. | Ethnomethodology | Study of everyday communication |
| 118. | Ethology | Study of natural or biological character |
| 119. | Ethonomics | Study of economic and ethical principles of a society |
| 120. | Etymology | Study of origins of words |
| 121. | Euthenics | Science concerned with improving living conditions |
| 122. | Fluviology | Study of watercourses |
| 123. | Floriculture | Study of flower yielding plants |
| 124. | Folkloristics | Study of folklore and fables |
| 125. | Gastroenterology | Study of stomach,intestines |
| 126. | Genealogy | Study of descent of families |
| 127. | Genesiology | Study of reproduction and heredity |
| 128. | Genethlialogy | Art of casting horoscopes |
| 129. | Geochronology | Study of measuring geological time |
| 130. | Geogeny | Science of the formation of the earth’s crust |
| 131. | Geogony | Study of formation of the earth |
| 132. | Geography | Study of surface of the earth and its inhabitants |
| 133. | Geology | Study of earth’s crust |
| 134. | Geomorphogeny | Study of the origins of land forms |
| 135. | Geoponics | Study of agriculture |
| 136. | Geophysics | Science dealing with the properties of matter and energy which brings about changes in the earth’s surface. |
| 137. | Geotechnics | Study of increasing habitability of the earth |
| 138. | Geratology | Study of decadence and decay |
| 139. | Gerocomy | Study of old age |
| 140. | Gerontology | Study of the growing old |
| 141. | Glaciology | Study of ice ages and glaciations |
| 142. | Glossology | Study of language; study of the tongue |
| 143. | Glyptography | Art of engraving on gems |
| 144. | Gnomonics | Art of measuring time using sundials |
| 145. | Gnosiology | Study of knowledge; philosophy of knowledge |
| 146. | Graminology | Study of grasses |
| 147. | Grammatology | Study of systems of writing |
| 148. | Graphemics | Study of systems of representing speech in writing |
| 149. | Gromatics | Science of surveying |
| 150. | Gynaecology | Study of women’s physiology |
| 151. | Gyrostatics | Study of rotating bodies |
| 152. | Haemataulics | Study of movement of blood through blood vessels |
| 153. | Hagiology | Study of saints |
| 154. | Halieutics | Study of fishing |
| 155. | Hamartiology | Study of sin |
| 156. | Harmonics | Study of musical acoustics |
| 157. | Hedonics | Part of ethics or psychology dealing with pleasure |
| 158. | Heliology | Science of the sun |
| 159. | Helio therapy | Use of sun-baths healing diseases |
| 160. | Helioseismology | Study of sun’s interior by observing its surface oscillations |
| 161. | Helminthology | Study of worms |
| 162. | Hematology | Study of blood |
| 163. | Heortology | Study of religious feasts |
| 164. | Hepatology | Study of liver |
| 165. | Heraldry | Study of coats of arms |
| 166. | Heresiology | Study of heresies |
| 167. | Herpetology | Study of reptiles and amphibians |
| 168. | Hierology | Science of sacred matters |
| 169. | Hippiatrics | Study of diseases of horses |
| 170. | Hippology | Study of horses |
| 171. | Histology | Study of the tissues of organisms |
| 172. | Histopathology | Study of changes in tissue due to disease |
| 173. | Historiography | Study of writing history |
| 174. | Historiology | Study of history |
| 175. | Homiletics | Art of preaching |
| 176. | Hoplology | Study of weapons |
| 177. | Horography | Art of constructing sundials or clocks |
| 178. | Horology | Science of time measurement |
| 179. | Horticulture | Study of gardening |
| 180. | Hydrobiology | Study of aquatic organisms |
| 181. | Hydrodynamics | Study of movement in liquids |
| 182. | Hydrogeology | Study of ground water |
| 183. | Hydrography | Study of investigating bodies of water |
| 184. | Hydrokinetics | Study of motion of fluids |
| 185. | Hydrology | Study of water resources |
| 186. | Hydrometeorology | Study of atmospheric moisture |
| 187. | Hydropathy | Study of treating diseases with water |
| 188. | Hydrophonics | Detection of sound under water. |
| 189. | Hydroponics | Study of raising of plants on water, without the help of soil. |
| 190. | Hyetology | Science of rainfall |
| 191. | Hygiastics | Science of health and hygiene |
| 192. | Hygienics | Study of sanitation; health |
| 193. | Hygiology | Study of cleanliness |
| 194. | Hygrology | Study of humidity |
| 195. | Hygrometry | Science of humidity |
| 196. | Hymnography | Study of writing hymns |
| 197. | Hypnology | Study of sleep; study of hypnosis |
| 198. | Hypsography | Science of measuring heights |
| 199. | Iamatology | Study of remedies |
| 200. | Iatromathematics | Archaic practice of medicine in conjunction with astrology |
| 201. | Ichnography | A ground plan f a building |
| 202. | Ichnology | Science of fossilized footprints |
| 203. | Ichthyology | Study of fish |
| 204. | Iconography | Study of drawing symbols |
| 205. | Iconology | Study of icons; symbols |
| 206. | Ideogeny | Study of origins of ideas |
| 207. | Immunogenetics | Study of genetic characteristics of immunity |
| 208. | Immunology | Study of immunity |
| 209. | Immunopathology | Study of immunity to disease |
| 210. | Insectology | Study of insects |
| 211. | Irenology | Study of peace |
| 212. | Kalology | Study of beauty |
| 213. | Karyology | Study of cell nuclei |
| 214. | Kinematics | Study of motion |
| 215. | Kinesics | Study of gestural communication |
| 216. | Kinesiology | Study of human movement and posture |
| 217. | Kinetics | Study of forces producing or changing motion |
| 218. | Koniology | Study of atmospheric pollutants and dust |
| 219. | Ktenology | Science of putting people to death |
| 220. | Kymatology | Study of wave motion |
| 221. | Labeorphily | Collection and study of beer bottle labels |
| 222. | Larithmics | Study of population statistics |
| 223. | Lepidopterology | Study of butterflies and moths |
| 224. | Leprology | Study of leprosy |
| 225. | Lexicology | Study of words and their meanings |
| 226. | Lexigraphy | Art of definition of words |
| 227. | Lichenology | Study of lichens |
| 228. | Limnobiology | Study of freshwater ecosystems |
| 229. | Limnology | Study of bodies of fresh water |
| 230. | Linguistics | Study of language |
| 231. | Liturgiology | The science or art of conducting public worship |
| 232. | Magirics | Art of cookery |
| 233. | Magnanerie | Art of raising silkworms |
| 234. | Magnetics | Study of magnetism |
| 235. | Malacology | Study of molluscs |
| 236. | Malariology | Study of malaria |
| 237. | Mamlogy | Study of mammals |
| 238. | Mariculture | Study of production marine culture |
| 239. | Mechanics | Study of action of force on bodies |
| 240. | Meconology | Study of or treatise concerning opium |
| 241. | Melittology | Study of bees |
| 242. | Metallography | Study of the structure and constitution of metals |
| 243. | Metallurgy | Study of alloying and treating metals |
| 244. | Metaphysics | Study of principles of nature and thought |
| 245. | Metapsychology | Study of nature of the mind |
| 246. | Meteorology | Study of weather and climate |
| 247. | Metrics | Study of versification |
| 248. | Metrology | Science of weights and measures |
| 249. | Microbiology | Study of microscopic organisms/microbes |
| 250. | Momilogy | Study of Mummies |
| 251. | Morphology | Study of plants external structure |
| 252. | Muscology | Study of mosses |
| 253. | Museology | Study of museums |
| 254. | Mycology | Study of fungus |
| 255. | Mylogy | Study of Muscles |
| 256. | Myrmecology | Study of ants |
| 257. | Mythology | Study of myths,fables,tales |
| 258. | Naology | Study of church or temple architecture |
| 259. | Neonatology | Study of newborn babies |
| 260. | Neossology | Study of nestling birds |
| 261. | Nephology | Study of clouds |
| 262. | Nephrology | Study of the kidneys |
| 263. | Neurobiology | Study of anatomy of the nervous system |
| 264. | Neurology | Study of nervous system |
| 265. | Neuropsychology | Study of relation between brain and behaviour |
| 266. | Neurypnology | Study of hypnotism |
| 267. | Neutrosophy | Study of the origin and nature of philosophical neutralities |
| 268. | Nidology | Study of nests |
| 269. | Nomology | Science of the laws; especially of the mind |
| 270. | Noology | Science of the intellect |
| 271. | Nosology | Study of diseases |
| 272. | Nostology | Study of senility |
| 273. | Numerology | Study of numbers |
| 274. | Numismatics | Study of coins |
| 275. | Obstetrics | Study of pregnancy, childbirth and the postpartum period |
| 276. | Oceanography | Study of oceans |
| 277. | Odontology | Study of teeth |
| 278. | Oenology | Study of wines |
| 279. | Oikology | Science of housekeeping |
| 280. | Olfactology | Study of the sense of smell |
| 281. | Ombrology | Study of rain |
| 282. | Oncology | Study of tumors |
| 283. | Oneirology | Study of dreams |
| 284. | Onomasiology | Study of words and expressions having similar or associated concepts |
| 285. | Onomastics | Study of history and origin of proper names |
| 286. | Ontology | Science of pure being; the nature of things |
| 287. | Oology | Study of eggs |
| 288. | Ophiology | Study of snakes |
| 289. | Ophthalmology | Study of eye diseases |
| 290. | Optics | Study of light |
| 291. | Optometry | Science of examining the eyes |
| 292. | Orchidology | Study of orchids |
| 293. | Ornithology | Study of birds |
| 294. | Orology | Study of mountains |
| 295. | Orthoepy | Study of correct pronunciation |
| 296. | Orthography | Study of spelling |
| 297. | Orthopterology | Study of cockroaches, grasshoppers |
| 298. | Osmics | Scientific study of smells |
| 299. | Osphresiology | Study of the sense of smell |
| 300. | Osteology | Study of bones |
| 301. | Otology | Science that deals with the study of the ear |
| 302. | Otorhinolaryngology | Study of ear, nose, and throat |
| 303. | Paedology | Study of children behaviour |
| 304. | Paedotrophy | Art of raising children |
| 305. | Paidonosology | study of children’s diseases; |
| 306. | Palaeoanthropology | Study of early humans |
| 307. | Palaeobiology | Study of fossil plants and animals |
| 308. | Palaeoclimatology | Study of ancient climates |
| 309. | Palaeolimnology | Study of ancient fish |
| 310. | Palaeolimnology | Study of ancient lakes |
| 311. | Palaeontology | Study of fossils |
| 312. | Paleo-osteology | Study of ancient bones |
| 313. | Parapsychology | Study of unexplained psychic phenomena |
| 314. | Parasitology | Study of parasites |
| 315. | Paroemiology | Study of proverbs |
| 316. | Pathology | Study of disease |
| 317. | Patrology | Study of early Christianity |
| 318. | Pedagogics | Study of teaching |
| 319. | Pedology | Study of soils |
| 320. | Pelology | Science that deals with the study of mud |
| 321. | Penology | Study of crime and punishment |
| 322. | Petrology | Study of rocks |
| 323. | Pharmacology | Study of drugs |
| 324. | Pharyngology | Study of the throat |
| 325. | Philately | Study of postage stamps |
| 326. | Philosophy | Science of knowledge or wisdom |
| 327. | Phoniatrics | Study and correction of speech defects |
| 328. | Phonology | Study of speech sounds |
| 329. | Photobiology | Study of effects of light on organisms |
| 330. | Phraseology | Study of phrases |
| 331. | Phycology | Study of algae and seaweeds |
| 332. | Physics | Study of properties of matter and energy |
| 333. | Physiography | The study of the physical features of the earth |
| 334. | Physiology | Study of processes of life |
| 335. | Piscatology | Study of fishes |
| 336. | Pisciculture | Art of rearing fish. |
| 337. | Pisteology | science or Study of faith |
| 338. | Planetology | Study of planets |
| 339. | Pneumatics | Study of mechanics of gases |
| 340. | Podology | Study of the morphology and feet |
| 341. | Polemology | Study of war |
| 342. | Potamology | Study of rivers |
| 343. | Protistology | Study of protists |
| 344. | Proxemics | Study of man’s need for personal space |
| 345. | Psalligraphy | Art of paper-cutting to make pictures |
| 346. | Psephology | Study of election results and voting trends |
| 347. | Pseudology | Art or science of lying |
| 348. | Pseudoptics | Study of optical illusions |
| 349. | Psychobiology | Study of biology of the mind |
| 350. | Psychogenetics | Study of internal or mental states |
| 351. | Psychology | Study of mind |
| 352. | Psychopathology | Study of mental illness |
| 353. | Psychophysics | Study of link between mental and physical processes |
| 354. | Pteridology | Study of ferns and related plants |
| 355. | Pyretology | Study of fevers |
| 356. | Pyrgology | Science that deals with the study of towers |
| 357. | Pyroballogy | Study of artillery (weapon) |
| 358. | Pyrography | Study of woodburning |
| 359. | Quinology | Study of quinine |
| 360. | Raciology | Study of racial differences |
| 361. | Radiology | study of X-rays and their medical applications |
| 362. | Rhabdology | Art of computing using numbering rods |
| 363. | Rhochrematics | Science of inventory management and the movement of products |
| 364. | Rhinology | Science that deals with the study of the nose |
| 365. | Sarcology | Study of fleshy parts of the body |
| 366. | Sedimentology | Study of sediment |
| 367. | Seismology | Study of earthquakes |
| 368. | Selenodesy | Study of the shape and features of the moon |
| 369. | Selenology | Study of the moon |
| 370. | Semantics | Study of meaning |
| 371. | Semantology | science of meanings of words |
| 372. | Semasiology | Study of meaning; semantics |
| 373. | Semiology | Study of signs and signals |
| 374. | Semiotics | Study of signs and symbols |
| 375. | Sericulture | Study of skill worm breeding. |
| 376. | Serology | Study of serum |
| 377. | Serpentology | Study of snakes |
| 378. | Silviculture | Study of forestry |
| 379. | Sociobiology | Study of biological basis of human behavior |
| 380. | Sociology | Study of society |
| 381. | Somatology | science of the properties of matter |
| 382. | Sorology | Study of lizards |
| 383. | Spectrology | Study of ghosts |
| 384. | Speleology | Study and exploration of caves |
| 385. | Sphagnology | Study of peat moss |
| 386. | Stasiology | Study of political parties |
| 387. | Statics | Study of bodies and forces in equilibrium |
| 388. | Stemmatology | Study of relationships between texts |
| 389. | Stoichiology | Science of elements of animal tissues |
| 390. | Stratigraphy | Study of geological layers or strata |
| 391. | Symptomatology | Study of symptoms of illness |
| 392. | Synecology | Study of ecological communities |
| 393. | Synectics | Study of processes of invention r problem solving |
| 394. | Syntax | Study of sentence structure |
| 395. | Teleology | Study of final causes; analysis in terms of purpose |
| 396. | Taxonomy | Study of Classification of organisms |
| 397. | Telmatology | Study of swamps |
| 398. | Thalassography | science of the sea |
| 399. | Thanatology | Study of death and its customs |
| 400. | Thaumatology | Study of miracles |
| 401. | Theology | Study of religion; religious doctrine |
| 402. | Theriogenology | Study of animals’ reproductive systems |
| 403. | Thermodynamics | Study of relation of heat to motion |
| 404. | Thermokinematics | Study of motion of heat |
| 405. | Thermology | Study of heat |
| 406. | Therology | Study of wild mammals |
| 407. | Thremmatology | Science of breeding domestic animals and plants |
| 408. | Threpsology | Science of nutrition |
| 409. | Tonetics | Study of pronunciation |
| 410. | Topology | Study of places and their natural features |
| 411. | Toxicology | Study of poisons |
| 412. | Traumatology | Study of wounds and their effects |
| 413. | Tribology | Study of friction and lubricants |
| 414. | Trichology | Study of hair and its disorders |
| 415. | Trophology | Study of nutrition |
| 416. | Tsiganology | Study of gypsies |
| 417. | Uranography | Describing and mapping the stars |
| 418. | Uranology | Study of the heavens(astronomy) |
| 419. | Urenology | Study of rust molds |
| 420. | Urology | Study of urine; urinary tract |
| 421. | Venereology | Branch f medical science that deals with the diagnosis and treatment of
sexually transmitted diseases |
| 422. | Vermeology | Study of worms |
| 423. | Vexillology | Study of flags |
| 424. | Victimology | Study of victims |
| 425. | Vinology | Scientific study of wine and winemaking |
| 426. | Virology | Study of viruses |
| 427. | Vulcanology | Study of volcanoes |
| 428. | Xylography | Art of making engraving on wood |
| 429. | Zenography | Study of the planet Jupiter |
| 430. | Zoogeography | Study of geographic distribution of animals |
| 431. | Zoogeology | Study of fossil animal remains |
| 432. | Zoology | Study of Animal kingdom |
| 433. | Zoonosology | Study of animal diseases |
| 434. | Zoophytology | Study of plant-like animals |
| 435. | Zoosemiotics | Study of animal communication/Signs of animals |
| 436. | Zymology | Science that deals with fermentation |
| 437. | Zymurgy | Science that deals with the branch of chemistry dealing with brewing, winemaking and distilling |
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