ស្យង់(science)
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
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Chemistry
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Physics
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Earth Science
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