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Soil
is
essential
for
life
on
Earth.
It
is
needed
for
food,
air,
clothing
and
so
much
more.
Discussion
topics
include
the
terms
'soil',
'dirt',
and
'sediment',
factors
affecting
the
formation
of
soils,
soil
horizons,
and
the
twelve
orders
of
soils.
In
a
hands-on
activity,
students
will
collect
soil
samples
from
three
different
locations,
use
online
resources
to
determine
texture
and
particle
makeup,
...
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