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  2. Scientific theory - Wikipedia

    en.wikipedia.org/wiki/Scientific_theory

    As new facts appear, a theory may be revised or new theories may emerge that encompass these additional facts. [39] While American vernacular speech uses "theory" as similar to a "guess" in opposition to a "fact", in science the word "theory" means a model that is expected to explain a wide range of facts. [38]

  3. Fact - Wikipedia

    en.wikipedia.org/wiki/Fact

    Non-fiction books at a Danish library, shelves displaying the word Fakta, Danish for "Facts" A fact is a true datum about one or more aspects of a circumstance. [1] Standard reference works are often used to check facts. Scientific facts are verified by repeatable careful observation or measurement by experiments or other means.

  4. Explanation - Wikipedia

    en.wikipedia.org/wiki/Explanation

    There are many and varied events, objects, and facts which require explanation. So too, there are many different things that can be used to explain something. Aristotle recognized four archetypes of explanation. These were thought, since even more ancient times, to be universal and unique 'kinds' of explanation that comprise all ways of ...

  5. Critical thinking - Wikipedia

    en.wikipedia.org/wiki/Critical_thinking

    Critical thinking is the process of analyzing available facts, evidence, observations, and arguments to make sound conclusions or informed choices. It involves recognizing underlying assumptions, providing justifications for ideas and actions, evaluating these justifications through comparisons with varying perspectives, and assessing their rationality and potential consequences. [1]

  6. Scientific method - Wikipedia

    en.wikipedia.org/wiki/Scientific_method

    The history of scientific method considers changes in the methodology of scientific inquiry, not the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the primacy of ...

  7. Hypothesis - Wikipedia

    en.wikipedia.org/wiki/Hypothesis

    A different meaning of the term hypothesis is used in formal logic, to denote the antecedent of a proposition; thus in the proposition "If P, then Q", P denotes the hypothesis (or antecedent); Q can be called a consequent. P is the assumption in a (possibly counterfactual) What If question.

  8. Theory - Wikipedia

    en.wikipedia.org/wiki/Theory

    The English word theory derives from a technical term in philosophy in Ancient Greek.As an everyday word, theoria, θεωρία, meant "looking at, viewing, beholding", but in more technical contexts it came to refer to contemplative or speculative understandings of natural things, such as those of natural philosophers, as opposed to more practical ways of knowing things, like that of skilled ...

  9. Scientific evidence - Wikipedia

    en.wikipedia.org/wiki/Scientific_evidence

    For example, Karl Popper once wrote that "In the empirical sciences, which alone can furnish us with information about the world we live in, proofs do not occur, if we mean by 'proof' an argument which establishes once and for ever the truth of a theory." [23] [24] Albert Einstein said: The scientific theorist is not to be envied.