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This
USGS
report
presents
an
overview
of
the
interactions
between
ground
water
and
surface
water
in
a
variety
of
terrains.
It
serves
as
a
general
educational
document
with
the
intention
of
helping
agencies
understand
the
basic
science
involved
in
the
management
and
protection
of
aquifers
and
watersheds.
The
report
describes
the
natural
processes
of
ground
water
and
surface
water
interactions
and
the
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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This
site
is
an
e-paper
that
describes
a
structured
approach
to
inquiry-based
learning
using
the
World
Wide
Web
as
a
primary
information
resource.
Specifically,
the
paper
addresses
an
8-step
process
that
begins
with
an
essential
question
and
ends
with
a
product
produced
by
students,
typically
completed
in
a
cooperative
setting.
The
paper
also
discusses
the
skills
required
by
both
student
and
teacher
...
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Critical
thinking
is
one
of
education's
central
goals
and
most
valued
outcomes,
but
it
can
difficult
to
teach
effectively.
The
Reason!
project
has
developed
the
Reason!Able
software
as
part
of
a
general
method
aimed
at
enhancing
critical
thinking
skills.
This
paper
describes
the
challenges
involved,
the
theoretical
basis
of
the
Reason!
project,
the
Reason!Able
software,
and
results
of
intensive
evaluation
...
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http:/
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Unusually
high
incidences
of
asbestos-related
mortality
and
respiratory
disease
in
the
town
of
Libby,
Montana,
have
been
linked
to
amphibole
mineral
fibers
intergrown
with
the
vermiculite
deposits
mined
and
milled
near
the
town
from
1923
to
1990.
Prompted
by
this
discovery,
the
U.S.
Geological
Survey
undertook
an
investigation
of
the
mineral
content
of
other
U.S.
vermiculite
deposits
to
determine
...
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The definition of asbestos often varies depending on the source or publication in which it is used. This report summarizes asbestos-related definitions taken from a variety of academic, industrial, and regulatory sources. This summary is by no means complete but includes the majority of significant definitions currently applied in the discipline.
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This report summarizes the current knowledge of naturally occurring radioactive materials in oil-fields of the United States. Of particular concern is the effect on public health and the environment of exposure to radioactive materials in the form of radium-bearing water and 'scale' deposits in tanks and pipes, which may travel far from the oil fields as scrap metal products.
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This
USGS
report
provides
information
about
the
effects
of
coal
combustion
on
human
health.
It
explains
the
hazards
associated
with
emissions
from
both
large-scale
coal
burning
electrical
plants
and
domestic
cook
stoves
used
in
developing
nations.
In
particular,
the
report
discusses
specific
instances
of
disease
related
to
the
emission
of
arsenic,
fluorine,
selenium,
thorium,
uranium,
and
polycyclic
...
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This
USGS
report
provides
an
overview
of
some
of
the
common
types
of
assessments
used
to
determine
the
vulnerability
of
ground-water
resources
to
contamination.
Scientists
can
use
the
methods
in
this
report
to
provide
decision
makers
with
information
about
how
to
best
manage
and
protect
groundwater
resources.
The
report
gives
two
hypothetical
examples
of
how
groundwater
vulnerability
assessments
are
...
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This
USGS
fact
sheet
presents
the
results
of
a
study
showing
significant
metal
contamination
of
streams
associated
with
un-mined
silver-lead-zinc
deposits
in
the
Brooks
Range,
Alaska.
The
metal
concentrations
in
some
of
these
waters
are
toxic
to
fish
and
exceed
the
maximum
levels
allowed
for
safe
drinking
water.
When
drainage
from
these
deposits
enters
streams
and
rivers
that
are
part
of
the
local
...
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This
website
describes
the
National
Center
for
Geographic
Information
and
Analysis'
Project
Varenius.
The
objective
is
to
advance
geographic
information
science
through
basic
research,
education,
and
outreach.
The
research
is
motivated
by
scientific,
technical,
and
societal
concerns.
From
this
website
users
can
access
publications,
a
project
description,
the
NSF
proposal
for
the
project,
information
...
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