|
This
site
provides
an
in-depth
discussion
of
"Big-Bang"
cosmological
theory.
Topics
include:
foundations
of
the
theory,
observational
tests,
limitations
and
extensions
of
the
theory,
and
some
properties
of
the
universe
itself
such
as
the
amount
and
type
of
matter,
its
expansion,
age,
shape,
occurrence
of
life,
and
its
ultimate
fate.
The
site
features
text,
photographs,
remote
sensing
imagery,
graphs,
...
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
This
site
describes
bouyancy
(the
difference
between
the
upward
and
downward
forces
acting
on
the
bottom
and
the
top
of
an
object)
and
the
Archimedes
Principle,
which
states
that
the
buoyant
force
on
a
submerged
object
is
equal
to
the
weight
of
the
fluid
that
is
displaced
by
it.
It
consists
of
text
descriptions
of
these
principles,
using
the
examples
of
metal
cubes
suspended
in
water
and
hot
air
baloons
...
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
Growth
in
"mega-cities"
is
altering
the
landscape
and
the
atmosphere
in
such
a
way
as
to
curtail
normal
photosynthesis.
By
using
data
from
The
Defense
Meteorological
Satellite
Program's
Operational
Linescan
System,
researchers
have
been
able
to
look
at
urban
sprawl
by
monitoring
the
emission
of
light
from
cities
at
night.
By
overlaying
these
"light
maps"
onto
other
data
such
as
soil
and
vegetation
...
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
Users
can
choose
from
an
extensive
selection
of
links
to
resources
for
use
in
the
study
of
the
history
of
space
exploration.
The
links
provide
access
to
historic
information
and
publications,
chronologies,
and
mission
summaries
for
American,
Russian,
European,
and
other
space
missions.
For
educators,
there
are
links
to
guides
to
robotic
spacecraft
and
to
observing
the
space
shuttle
in
orbit.
Links
...
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
In this activity, students learn to recognize periodicity within a set of data by using the examples of pendulums and binary star systems. Included are prerequisites, enrichment activities, materials lists, datasets, instructions, and links to additional information..
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
This educational brief is designed to serve as a source of background information on solar radiation studies for teachers and as a reference for student investigations on this subject. Users can learn mathematical concepts and key terms associated with solar radiation as it strikes the Earth.
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
Visitors
can
learn
about
the
relatively
new
field
of
imaging
spectroscopy,
which
allows
specific
absorption
features,
caused
by
chemical
bonds
in
materials,
to
be
mapped
spatially.
Topics
include
an
introduction
to
the
procedure,
environmental
applications,
vegetation
and
biota
mapping,
lithologic,
and
mineral
mapping.
A
set
of
links
provides
access
to
reports,
accompanied
by
spectroscopic
images,
...
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
Teachers can examine and choose from a large selection of lesson plans involving aeronautics and space flight. Topics include aerospace, aircraft models, aircraft design, planetary flight, the Wright brothers and their aircraft, and others. The lesson plans cover grade levels from K-12, but most are for grades 5-8. They are organized by title, subject, topic, and grade level.
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
This
activity
has
students
create
a
Cartesian
diver,
which
will
act
in
some
ways
like
a
submarine.
Students
will
adjust
the
amount
of
air
and
water
in
an
inverted
test
tube
(the
"diver")
so
that
it
at
first
barely
floats
in
a
water-filled
bottle.
Then,
they
will
squeeze
the
closed
bottle
to
create
higher
water
pressure,
causing
the
diver
to
sink.
Releasing
the
bottle
allows
the
diver
to
float
again.
...
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||
|
In this activity, students construct a scale model of the solar system using a tape measure or a very long roll of paper. A calculation tool is provided to determine the correct scaled distances and planet sizes. A brief discussion of the concept of the vast distances of space is included, along with links to other solar system resources.
|
|
|
|
|
Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
|
||||||
