Natural
science
is
a
branch
of
science
concerned
with
the
description
,
prediction
,
and
understanding
of
natural
phenomena
,
based
empirical
evidence
from
observation
and
experimentation
.
Mechanisms
such
as
peer
review
and
repeatability
of
findings
are
used
to
try
to
ensure
the
validity
of
scientific
advances
.
Natural
science
can
be
divided
two
main
branches
:
life
science
and
physical
science
.
Life
science
is
alternatively
known
as
biology
,
and
physical
science
is
subdivided
into
branches
:
physics
,
chemistry
,
Earth
science
,
and
astronomy
.
branches
of
natural
science
may
be
further
divided
into
more
specialized
branches
(
also
known
as
fields
)
.
As
empirical
sciences
,
natural
sciences
use
tools
from
the
formal
sciences
,
such
as
mathematics
logic
,
converting
information
about
nature
into
measurements
can
be
explained
as
clear
statements
of
the
"
laws
of
nature
"
.
Modern
natural
science
succeeded
more
classical
approaches
to
natural
philosophy
,
usually
traced
to
Taoists
traditions
in
Asia
and
in
the
Occident
to
ancient
Greece
.
Galileo
,
Descartes
,
Bacon
,
and
Newton
debated
the
benefits
of
using
approaches
which
more
mathematical
and
more
experimental
in
a
methodical
way
.
Still
,
philosophical
perspectives
,
conjectures
,
and
presuppositions
,
often
overlooked
,
remain
necessary
in
natural
science
.
Systematic
data
collection
,
including
discovery
science
,
succeeded
natural
history
,
which
emerged
in
the
16th
century
describing
and
classifying
plants
,
animals
,
minerals
,
and
so
on
.
Today
,
"
natural
history
"
suggests
observational
descriptions
aimed
at
popular
audiences
.
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