What is science ?




What is science?

Science Definition 


Ananda Sigdel | Class 11 |  National school of Sciences

The word science comes from the Latin “scientia,” meaning knowledge. 


How do we define science? According to Webster’s New Collegiate Dictionary, the definition of science is “knowledge attained through study or practice,” or “knowledge covering general truths of the operation of general laws, esp. as obtained and tested through scientific method [and] concerned with the physical world.” 

What does that really mean? Science refers to a system of acquiring knowledge. This system uses observation and experimentation to describe and explain natural phenomena. The term science also refers to the organized body of knowledge people have gained using that system. Less formally, the word science often describes any systematic field of study or the knowledge gained from it. 

What is the purpose of science? Perhaps the most general description is that the purpose of science is to produce useful models of reality. 

Most scientific investigations use some form of the scientific method. You can find out more about the scientific method here. 

Science as defined above is sometimes called pure science to differentiate it from applied science, which is the application of research to human needs. Fields of science are commonly classified along two major lines: 
– Natural sciences, the study of the natural world, and 
– Social sciences, the systematic study of human behavior and society. 

The Different Fields of Science 

This is just a partial listing of some of the many, many different possible fields of study within science. Many of the fields listed here overlap to some degree with one or more other areas. 

Natural Sciences 
Biology 
Anatomy 
Astrobiology 
Biochemistry 
Bioinformatics 
Biophysics 
Botany 
Cell biology 
Developmental biology 
Ecology 
Entomology 
Epidemiology 
Evolution (Evolutionary biology) 
Freshwater Biology 
Genetics 
Immunology 
Marine biology 
Microbiology 
Molecular Biology 
Morphology 
Neuroscience 
Physical anthropology 
Physiology 
Population dynamics 
Structural biology 
Taxonomy 
Toxicology 
Virology 
Zoology 

Chemistry 
Analytical chemistry 
Biochemistry 
Computational chemistry 
Electrochemistry 
Inorganic chemistry 
Materials science 
Organic chemistry 
Polymer chemistry 
Physical chemistry 
Quantum chemistry 
Spectroscopy 
Stereochemistry 
Thermochemistry 

Physics 
Acoustics 
Astrodynamics 
Astronomy 
Astrophysics 
Biophysics 
Classical mechanics 
Computational physics 
Condensed matter physics 
Cryogenics 
Dynamics 
Fluid dynamics 
High Energy Physics 
Materials physics 
Mechanics 
Nuclear physics 
Optics 
Particle physics 
Plasma physics 
Polymer physics 
Quantum mechanics 
Solid State physics 
Thermodynamics 

Earth Science 
Environmental Science 
Geodesy 
Geography 
Geology 
Hydrology 
Meteorology 
Oceanography 
Paleontology 
Seismology