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Home » » What is Science?

What is Science?



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

Importaint Links
 

What is Science?

What is science? - Understanding Science

Earth Science - Research, Policy and Education‎

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