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In
this
lesson
students
learn
to
recognize
the
types
of
tephra,
which
include
a
variety
of
ejected
volcanic
products,
and
that
the
distribution
and
type
of
tephra
can
be
used
to
locate
an
eruption
source
and
describe
the
style
of
an
eruption.
Students
also
learn
that
tephra
is
classified
by
size,
texture,
and
composition
and
as
a
result
of
this
lesson
will
be
able
to
identify
and
describe
the
origin
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In
this
activity
students
are
asked
for
their
predictions
about
how
different
water
temperatures
will
affect
movement
in
the
ocean
water
column.
Students
will
investigate
the
effect
of
water
temperature
on
mixing
in
the
water
column.
They
will
half
fill
one
jar
with
the
hottest
water
the
faucet
will
provide
and
half
fill
the
other
jar
with
chilled
water.
After
allowing
the
water
in
both
jars
to
settle
...
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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 resource is part of :
Live From Antarctica 2: Teacher's Guide -
http:/
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This
section
of
the
Windows
to
the
Universe
web
site
provides
information
and
images
about
stars
including
star
statistics,
and
a
star
gallery.
Windows
to
the
Universe
is
a
user-friendly
learning
system
pertaining
to
the
Earth
and
Space
sciences.
The
objective
of
this
project
is
to
develop
an
innovative
and
engaging
web
site
that
spans
the
Earth
and
Space
sciences
and
includes
a
rich
array
of
documents,
...
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Choosing & Using this resource...
Educational standards associated with this resource:
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This
lesson
plan
is
part
of
the
DiscoverySchool.com
lesson
plan
library
for
grades
6-8.
It
focuses
on
the
advent
of
Space
Shuttle
missions
from
1981
to
1986.
Students
research
facts
about
each
of
the
25
missions
that
occurred
during
this
time
period,
finding
out
what
each
mission
objective
was.
They
also
look
at
the
Challenger
incident
and
what
went
wrong
with
that
mission.
Included
are
objectives,
...
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Choosing & Using this resource...
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This
demonstration
models
the
manner
in
which
the
convection
currents
in
the
mantle
of
the
Earth
cause
movement
of
the
plates.
Convection
currents
in
the
mantle
were
thought,
for
many
years,
to
be
solely
responsible
for
plate
tectonic
movements,
with
the
movement
taking
rocks
down
at
destructive
margins
and
new
rocks
forming
when
plates
spread.
It
is
now
thought
likely
that
there
are
three
possible
...
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Choosing & Using this resource...
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This
demonstration
uses
a
gyroscope
(a
bicycle
wheel
works
well),
string,
and
a
turntable
(optional)
to
show
how
the
equatorial
bulge
of
Earth
causes
precession.
By
balancing
the
spinning
bicycle
wheel
on
one
hand,
and
pulling
a
string
attached
to
the
top
axle
with
the
other,
the
axis
of
the
wheel
traces
out
a
circle
(precesses).
The
site
also
explains
how
the
moment
of
inertia
is
related
to
torque
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Misconceptions:
Read (1)
Related resources and collections
This resource is part of :
Demonstrations of Geophysical Principles Applicable to the Properties and Processes of the Earth's Interior -
http:/
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In
this
earthquake
safety
classroom
activity,
students
work
in
teams
to
build
seismic
safe
structures.
Students
will
try
building
their
own
structure
to
see
if
they
can
discover
some
of
the
features
that
minimize
the
effects
on
a
building
when
the
Earth
shakes.
Each
team
will
build
and
test
three
structures
following
the
instructions.
After
all
teams
finish,
the
class
discusses
features
of
seismic
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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 resource requires :
The Day the Earth Shook: Student Handout: "Shake, Rattle, and Roll" -
http:/
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In
this
activity,
students
learn
how
a
rocket
works
by
ejecting
gas,
which
produces
an
equal
and
opposite
force
in
the
direction
of
the
rocket's
flight.
They
will
discover
that
rockets
do
not
have
to
"push
off"
of
the
atmosphere
to
get
into
space
and
that
it
is
not
necessary
to
keep
pushing
a
satellite
to
keep
it
moving
in
orbit
because
there
is
no
friction
in
space
to
cause
things
to
slow
down.
Students
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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In
this
activity,
students
will
examine
water
turbidity
as
a
function
of
sediment
grain
size
and
the
rate
at
which
it
settles
out
of
the
water.
They
will
define
rate,
turbidity,
and
settling
rate
and
explain
the
relation
between
settling
rate
and
turbidity;
make
semi-quantitative
observations
of
turbidity
and
make
a
graph
showing
change
in
turbidity
against
time;
and
explain
how
and
why
settling
rate
...
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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
activity
helps
students
understand
why
compass
angles
need
to
be
corrected
for
regional
magnetic
variation.
The
magnetic
compass,
perfected
slowly
over
years
of
experimentation,
trial,
and
scientific
endeavor,
became
the
sailor's
most
common
and
most
reliable
direction-indicating
aid,
but
is
influenced
by
magnetic
variabilities
and
the
location
of
magnetic
north.
Terms
introduced
include
compass,
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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