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This
article
discusses
how
hydrothermal
vents
are
formed
and
why
scientists
monitor
minute
temperature
changes
around
them.
It
details
the
writer's
personal
account
of
preparing
temperature
probes
to
be
deployed
for
a
year-long
study,
an
explanation
of
deep
sea
vents
and
their
hydrothermal
nature,
and
why
they
seem
to
spew
black
smoke.
The
thermometers
prepared
by
the
writer
help
monitor
the
currents
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Choosing & Using this resource...
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In
this
lesson
covers
the
evolution
of
a
volcanic
island
from
origin
to
erosion.
Students
will
be
able
to
determine
the
relative
ages
of
the
Northwestern
Hawaiian
Islands,
given
their
position
in
the
archipelago
and
why
these
islands
are
so
much
smaller
than
the
main
islands
of
the
Hawaiian
chain.
They
will
discover
that
volcanic
islands
form
over
a
hot
spot
on
the
ocean
floor
and
that
islands
form
...
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Choosing & Using this resource...
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This site provides information about the effects of carbon dioxide and sulfur dioxide volcanic emissions on global climate. Helpful diagrams depict the chemical processes involved in atmospheric cooling and historical examples are cited. The 1991 eruption of Mt. Pinatubo in used as a case study. The site also provides links to references cited and additional resources.
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The
magnetic
field
of
the
Earth
is
contained
in
a
region
called
the
magnetosphere.
The
magnetosphere
prevents
most
of
the
particles
from
the
sun,
carried
in
solar
wind,
from
hitting
the
Earth.
This
site,
produced
by
the
University
Corporation
for
Atmospheric
Research
(UCAR),
uses
text,
scientific
illustrations,and
remote
imagery
to
explain
the
occurrence
and
nature
of
planetary
magnetic
fields
and
...
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Choosing & Using this resource...
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The
Surface
of
Mars
is
a
Windows
to
the
Universe
Exploratour
and
provides
information
and
images
about
different
features
found
on
the
surface
and
the
geography
of
the
planet,
continents
on
Mars,
altimeters,
Valles
Marineris,
Tharsis
Ridge,
craters,
dune
fields,
polar
caps,
ice
cliffs,
volcanoes,
Olympus
Mons,
water
features,
and
soils
on
Mars.
Windows
to
the
Universe
is
a
user-friendly
learning
system
...
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Choosing & Using this resource...
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Comparing
the
Surfaces
of
Earth
and
Mars
is
a
Windows
to
the
Universe
Exploratour
and
provides
information
and
images
about
different
features
found
on
the
surface
and
the
geography
of
both
planets:
continents,
craters,
volcanoes,
plate
tectonics,
rocks,
soils,
water,
and
polar
caps.
Windows
to
the
Universe
is
a
user-friendly
learning
system
pertaining
to
the
Earth
and
Space
sciences.
The
objective
...
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Choosing & Using this resource...
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This
lesson
introduces
students
to
a
variety
of
natural
hazards,
emphasizing
that
when
people
understand
these
threats
they
are
better
able
to
avoid
or
reduce
their
potential
impacts.
First,
the
class
discusses
what
they
know
about
natural
hazards
and
natural
disasters.
Then,
working
in
pairs,
they
research
particular
hazards;
the
threats
they
pose
and
where
and
when
those
threats
are
most
pronounced.
...
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Human
eyes
cannot
see
infrared
wavelengths,
but
with
the
help
of
false-color
imaging,
temperature
differences
become
visible
and
invisible
features
are
suddenly
illuminated.
This
interactive
gallery
shows
images
of
a
variety
of
objects
and
geothermal
features
in
both
visible
and
infrared
light,
and
explains
why
the
infrared
images
show
the
items
as
they
do.
A
background
essay
and
list
of
discussion
...
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Choosing & Using this resource...
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The
Surface
of
the
Earth
is
a
Windows
to
the
Universe
Exploratour
and
provides
information
and
images
about
landforms,
plate
tectonics,
Earth's
layers,
the
lithosphere,
plates,
moving
plates,
and
the
water
cycle,
.
This
tour
also
explains
the
formation
of
mountains,
volcanoes,
craters,
rocks
and
minerals,
the
ocean
floor,
oceans,
ocean
levels,
poles,
rivers,
lakes,
and
deserts.
Windows
to
the
Universe
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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For
hundreds
of
thousands
of
years,
lava
flows
have
created
intricate
patterns
on
the
slopes
of
Hawaii's
Mauna
Loa
volcano.
Until
the
mid-1970s,
it
was
impossible
to
know
when
each
of
the
flows
occurred.
However,
as
this
video
segment
describes,
a
researcher
has
discovered
a
way
to
date
the
flows
by
determining
the
age
of
carbonized
plant
remains
that
they
covered.
The
segment
is
four
minutes
thirty-three
...
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Choosing & Using this resource...
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