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Hypothesis
A hypothesis is an initial statement regarding the cause and effect in a specific situation. It can be tested by experimentation and observation or by statistical analysis of probabilities from data. A useful hypothesis allows predictions by using deductive reasoning.
Sometimes a hypothesis is developed before new knowledge or technology can test it. The ancient Greeks proposed the concept of atoms, but it could only be tested centuries later.
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Occam's Razor
Occam's Razor is a principle of the scientific method. It states that "entities should not be multiplied beyond necessity." It means that where two hypotheses are presented and have equal predictive power, the most simple explanation that fits the available data is the preferred ...
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Scientific paradigms
Once a scientific theory is established, it is difficult to get the scientific community to abandon it.
Science philosopher Thomas Kuhn used the term scientific paradigm to explain a working set of concepts under which science operates. When one paradigm is overtur...
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Model
A model is used when the hypothesis has a known limitation on its validity.
For example, the Bohr model of the atom shows electrons circling the atomic nucleus in a similar way as planets in the solar system. The model is useful for establishing the energies of the quantum ...
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Scientific theory and law
A scientific theory or law represents a hypothesis that has been validated through repeated testing over many years.
- A theory is an explanation for a set of related phenomena, like the theory of evolution.
- The word "law" is oft...
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The difference between a hypothesis and a theory
A hypothesis is often the first step of the scientific method. It is a proposed and still-unproven explanation that can be tested through experiments and observations.
In science, a theory is a widely accepted idea backed by data, observ...
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