Science is a word that can be used to talk about three different ideas, which are not very different from each other:

  1. It is about getting knowledge or making the knowledge better. Making the knowledge better is done using a process called research.
  2. Education is about teaching knowledge to people.
  3. Science can also be used to talk about all the knowledge known so far.

Today, research uses the scientific method. Scientific research is used to increase knowledge by creating hypotheses based on knowledge earlier known, and then testing those hypotheses using experiments. The word science can also refer to the large amount of knowledge that has been found using this process, so far.

People who study and research science and try to find out everything about it are called scientists. Scientists study things by looking at them very carefully, by measuring them, and by doing experiments and tests. Scientists try to explain why things act the way they do, and predict what will happen.

Scientific methodEdit

The "scientific method" is the name given to the methods used by scientists to find knowledge.

The main features of the scientific method are:

  • The scientific method is a "trial and error" method. (Scientists try something to see if it works or not.)
  • The scientific method depends on data.
  • The product of the scientific process is something called a "theory".

Most people accept the scientific method as the most reliable way to get knowledge about nature, the  universe, and the human body.

Other features of scienceEdit

Not everyone completely agrees about how science works. Some philosophers and scientists say that scientific theories are only accepted as long as they are the best explanation for the data that exists, and when theories no longer explain the data, they are discared and replaced. other people say that sometimes scientists will make a theory better rather than discard it, or that they will keep on using the theory hoping that it will be made better eventually.

Science is a way to get knowledge by discarding what is not true.

Scientists must be very careful to make explanations that fit well with what they observe and measure. They comete to provide better explanations. An explanation might be interesting or pleasing, but if it does not agree with what other scientists really see and measure, they will try to find a better explanation.

Before a scientific article is published, other scientists read the article and decide whether the explanations make sense from the data. This is called peer review. After articles are published, other scientists will also check if the same experiments, observations or tests produce the same data again. Peer review and repeating experiments are the only way to be sure the knowledge is correct.

Science makes models of nature, models of our universe, and medicine. There are many different sciences with their own names. However, it is not right to say "science says" any one things. Science is a process, not just the facts and rules believed at one time.

Some types of scienceEdit

Biological sciencesEdit

  • Biology
    • Anatomy
    • Astrobiology
    • Biochemistry
    • Biogeography
    • Biological engineering
    • Biophysics
    • Behavioral neuroscience
    • Biotechnology
    • Botany
    • Cell biology
    • Conservation biology
    • Cryobiology
    • Developmental biology
    • Ecology
    • Ethnobiology
    • Ethology
    • Evolutionary biology
    • Genetics
    • Gerontology
    • Immunology
    • Limnology
    • Marine biology
    • Microbiology
    • Molecular biology
    • Neuroscience
    • Paleontology
    • Parasitology
    • Physiology
    • Radiobiology
    • Soil biology
    • Systematics
    • Toxicology
    • Zoology

Physical sciencesEdit

  • Physics
    • Classical physics
    • Modern physics
    • Applied physics
    • Computational physics
    • Atomic physics
    • Nuclear physics
    • Particle physics
    • Experimental physics
    • Theoretical physics
    • Condensed matter physics
    • Mechanics
    • Classical mechanics
    • Quantium mechanics
    • Continuum mechanics
    • Rheology
    • Solid mechanics
    • Fluid mechanics
    • Plasma physics
    • Thermodynamics
    • General relativity
    • Special relativity
    • String theory
    • M-theory
    • Tachyonic field
  • Chemistry
    • Acid-base reaction theories
    • Alchemy
    • Analytical chemistry
    • Astrochemistry
    • Biochemistry
    • Crystallography
    • Environmental chemistry
    • Food chemistry
    • Geochemistry
    • Green chemistry
    • Inorganic chemistry
    • Materials science
    • Molecular physics
    • Nuclear chemistry
    • Organic chemistry
    • Photochemistry
    • Physical chemistry
    • Radiochemistry
    • Solid-state chemistry
    • Stereochemistry
    • Supramolecular chemistry
    • Surface science
    • Theoretical chemistry
  • Astronomy
    • Astrophysics
    • Cosmology
    • Galactic astronomy
    • Planetary geology
    • Planetary science
    • Stellar astronomy
  • Earth Science
    • Meteorology
    • Geology
    • Oceanography
    • Climatology
    • Ecology
    • Environmental science
    • Geodesy
    • Geomorphology
    • Geophysics
    • Glaciology
    • Hydrology
    • Limnology
    • Paleoclimatology
    • Paleoecology
    • Palynology
    • Physical geography
    • Pedology
    • Edaphology
    • Space science

Social sciencesEdit

  • Anthropology
  • Archaeology
  • Criminology
  • Demography
  • Economics
  • Education
  • Human geography
  • International relations
  • Law
  • Linguistics
  • Political science
  • Psychology
  • Sociology

Formal sciencesEdit

  • Mathematics
  • Mathematical logic
  • Mathematical statistics
  • Computer science

Applied sciencesEdit

  • Engineering
    • Aerospace
    • Agricultural
    • Biomedical
    • Chemical
    • Civil
    • Computer
    • Electrical
    • Fire protection
    • Genetic
    • Industrial
    • Mechanical
    • Military
    • Mining
    • Nuclear
    • Operations research
    • Robotics
    • Software
  • Healthcare sciences
    • Biological engineering
    • Dentistry
    • Epidemiology
    • Health care
    • Medicine
    • Nursing
    • Pharmacy
    • Social work
    • Veterinary medicine

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