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Results 1
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= DLESE Reviewed Collection
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This
lesson
is
one
in
a
series
that
brings
the
important
stories
of
historic
places
into
the
classrooms
across
the
country.
It
could
be
used
in
units
on
the
early
industrial
period
of
American
history
and
in
courses
on
geography
or
science
and
technology.
It
will
help
students
realize
the
role
canals
played
in
western
expansion
and
in
the
evolution
of
transportation
by
focusing
on
the
construction
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
Related resources and collections
This resource is included in the following collections:
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Researchers
have
identified
approximately
140
individual
impact
craters
on
Earth.
These
craters
probably
represent
only
about
25
percent
of
those
to
be
found.
Assuming
an
equal
rate
of
impact
around
the
globe,
many
more
craters
remain
to
be
discovered,
particularly
in
remote
land
regions
of
our
planet
and
in
the
oceans.
This
activity
uses
satellite
images
of
several
craters
on
the
earth
to
study
impact
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Related resources and collections
This resource is included in the following collections:
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