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This
resource
presents
information
on
global
warming
and
the
possible
impacts
of
the
melting
of
the
Antarctic
ice
sheets
and
the
resulting
rise
in
sea
level.
Materials
include
a
video
excerpt,
interviews
with
proponents
and
skeptics
on
the
issue
of
global
warming,
maps
and
descriptions
of
how
the
world's
coastlines
might
change
as
sea
levels
rise,
and
the
study
of
ice
cores
to
reveal
climatic
conditions
...
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This tutorial will help students learn and understand the concepts of geologic time and the age of the Earth. They will investigate the geologic time scale and learn about the use of index fossils and radiometric dating to determine the age of rock formations and fossils.
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This portal provides an extensive set of links to information on solar and lunar eclipses, planetary transits, solar system data, moon phases, and related resources. Information on recent and upcoming eclipses and other celestial events is also included.
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This site provides statistics and information on the worldwide supply of, demand for, and flow of minerals and materials essential to the U.S. economy and to national security. The database is searchable by commodity, country, state, or keyword. Links to a variety of related topics and publications are included.
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At
the
end
of
2003,
there
were
2600
known
Near
Earth
Asteroids
(NEAs),
and
of
these
691
are
brighter
than
absolute
magnitude,
which
is
taken
to
correspond
to
a
diameter
of
1
kilometer
or
more.
Of
these,
131
are
classed
as
PHAs
(potentially
hazardous
asteroids)
larger
than
1
km.
This
site
describes
the
potentially
devastating
effects
of
a
collision
between
Earth
and
a
large
meteor
or
asteroid.
It
also
...
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This database of NASA images includes a large selection of pictures of spacecraft, astronomical objects, and NASA facilities and personnel. The database is searchable by keyword, or by browsing a selection of subject categories.
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Users
can
access
an
extensive
selection
of
Earth
Science
materials.
The
institute
itself
sponsors
a
series
of
online
exhibits
on
volcanoes
and
earthquakes,
drinking
water,
El
Nino/
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This resource references :
This resource references :
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This
photo
gallery
features
an
extensive
selection
of
imagery
of
many
types
of
objects
in
space.
The
gallery
is
divided
by
type
of
object:
solar
system
(planets,
asteroids,
comets,
etc.),
astronomical
objects
(nebulae,
galaxies.
etc.),
and
other
images
(sun,
spacecraft).
Detailed
captions
are
provided
for
some
images.
Indices
are
provided
for
imagery
from
three
major
sources:
Galileo,
the
Hubble
Space
...
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This collection of basic definitions and answers to questions about hurricanes and tropical cyclones includes how they form, how they are named, how intensities are measured, and how storms are forecast. Historical information, information on myths surrounding these storms, links to sites displaying real-time storm information, and safety tips are also included.
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Examples of use
Read (1)
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This site presents a summary of current volcanic eruptions and images and videos of volcanoes on Earth. Discussions of the characteristics of volcanism on other worlds in our solar system are also presented and are accompanied by maps and imagery. Links to volcano observatories, parks, and monuments around the world are also included.
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