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The
purpose
of
this
activity
is
to
measure
relative
humidity
using
both
a
sling
psychrometer
and
a
digital
hygrometer.
Intended
outcomes
are
that
students
learn
to
quantify
humidity
and
that
there
is
a
limit
to
the
amount
of
water
vapor
that
the
air
can
hold.
Students
gain
insight
into
why
rain
drops
and
snow
flakes
form
and
why
there
is
precipitation.
Supporting
background
materials
for
both
student
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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The
purpose
of
this
activity
is
to
introduce
students
to
visualizations
as
a
tool
for
scientific
problem-solving,
using
elevation
and
temperature
as
an
example.
Students
color
in
visualizations
of
elevation
and
temperature
so
that
important
patterns
in
the
data
become
evident.
The
relationship
between
the
two
quantities
is
studied
by
using
them
to
compute
the
lapse
rate,
the
rate
at
which
temperature
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
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The purpose of this resource is to measure the salinity of the water at your hydrology site. Students use a hydrometer to measure the specific gravity of the water sample, and use a thermometer to measure the temperature. With these two values, students will use tables to determine the salinity.
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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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The
purpose
of
this
resource
is
to
log
soil
data
using
a
Davis
soil
moisture
and
temperature
station.
Soil
moisture
and
temperature
sensors
are
installed
at
multiple
depths
and
a
station
is
set
up
to
measure
and
record
measurements
at
15
minute
intervals.
These
measurements
are
transferred
to
your
school.s
computer
and
then
submitted
to
GLOBE
via
email
data
entry.
Gravimetric
soil
moisture
measurements
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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The
purpose
of
this
resource
is
to
sure
the
distribution
of
different
sizes
of
soil
particles
in
each
horizon
of
a
soil
profile.
Using
dry,
sieved
soil
from
a
horizon,
students
mix
the
soil
with
water
and
a
dispersing
solution
to
completely
separate
the
particles
from
each
other.
Students
shake
the
mixture
to
fully
suspend
the
soil
in
the
water.
The
soil
particles
are
then
allowed
to
settle
out
of
...
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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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This
site
is
designed
to
engage
students
in
grades
7-12
in
activities
that
focus
on
collaboration
and
communication
strategies.
These
activities
will
strengthen
student
understanding
of
and
ability
to
use
collaborative
processes
and
communication
practices
to
clarify,
conceptualize,
and
make
decisions.
Students
will
compare
the
risks
of
varying
courses
of
action
that
confront
scientists
and
engineers.
...
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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 included in the following collections:
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Three
macroinvertebrate
lessons
focus
on
(a)
macroinvertebrate
surveys,
and
how
a
pH
change
and
the
introduction
of
pesticides
and
fertilizers
can
affect
an
aquatic
ecosystem,
(b)
pH
and
macroinvertebrate
populations
(do
changes
in
the
pH
level
effect
an
aquatic
ecosystem?),
and
(c)
pesticides
and
macroinvertebrates
(does
the
introduction
of
pesticides
and
fertilizers
alter
an
aquatic
ecosystem?.
...
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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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This
document
describes
the
functions
and
values
of
wetlands,
and
includes
keywords
and
illustrations.
Wetlands
have
received
wastewater
discharges
from
many
different
situations
in
the
past,
but
only
recently
have
they
been
recognized
as
potentially
cost-efficient
treatment
systems.
They
can
effectively
remove
or
convert
large
quantities
of
pollutants
from
point
sources
(municipal
and
industrial
...
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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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This
NASA
Module
investigation
compares
and
contrasts
physical
processes
that
occur
on
Both
Earth
and
Mars.
Students
are
given
unidentified
images
of
Earth
and
Mars.
Their
task
is
to
arrange
the
images
into
pairs
that
show
evidence
of
similar
physical
processes.
Then
they
identify
each
image
as
one
of
Earth
or
of
Mars
by
comparing
and
contrasting
physical
features
that
they
observe
in
the
image
pairs.
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
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This resource is included in the following collections:
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In this lesson, students learn about meteors, meteorites, and comets by reading and discussing a related New York Times article about the Leonid meteor showers and the methods that scientists are using to learn from these meteors. Students then create and observe a comet in their classroom.
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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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