 Scientific
laws or laws
of science are
statements, based on repeated experiments or observations,
that describe or predict a
range of natural
phenomena. The
term law has diverse usage in many cases
(approximate, accurate, broad, or narrow) across all fields of natural
science (physics, chemistry, astronomy, geoscience, biology).
Laws are developed from data and can be further developed through mathematics;
in all cases they are directly or indirectly based on empirical
evidence.
It is generally understood that they implicitly reflect, though they do not
explicitly assert, causal relationships fundamental to reality, and are
discovered rather than invented.
Scientific laws summarize the
results of experiments or observations, usually within a certain range of
application. In general, the accuracy of a law does not change when a new theory
of the relevant phenomenon is worked out, but rather the scope of the law's
application, since the mathematics or statement representing the law does not
change. As with other kinds of scientific knowledge, scientific laws do not
express absolute certainty, as mathematical
laws do.
A scientific law may be contradicted, restricted, or extended by future
observation" Source
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