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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
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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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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
Related resources and collections
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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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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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
Related resources and collections
This resource is included in the following collections:
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The
purpose
of
this
activity
is
to
observe
the
type
and
cover
of
clouds
including
contrails.
Students
observe
which
of
ten
types
of
clouds
and
how
many
of
three
types
of
contrails
are
visible
and
how
much
of
the
sky
is
covered
by
clouds
(other
than
contrails)
and
how
much
is
covered
by
contrails.
Intended
outcomes
are
that
students
learn
how
to
make
estimates
from
observations
and
how
to
categorize
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
Comments and Teaching Tips
Read (1)
Related resources and collections
This resource is included in the following collections:
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This
six-day
unit
has
students
investigate
the
challenges
of
living
and
working
in
Antarctica
and
how
researchers
prepare
for
them,
and
then
evaluate
the
insulating
properties
of
a
variety
of
fabrics,
collecting
their
findings
in
a
portfolio.
The
comprehensive
curriculum
materials
at
this
site
include
an
online
activity
in
which
students
review
the
preparation
materials
given
to
researchers
before
...
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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 part of :
Antarctica: The Farthest Place Close to Home -
http:/
This resource is included in the following collections:
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The purpose of this resource is to measure the conductivity of water at a freshwater hydrology site. Students calibrate and take electrical conductivity measurements using an electrical conductivity meter. Students estimate the total dissolved solids from the electrical conductivity measurements.
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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
introduce
students
to
the
importance
of
soil.
In
the
first
activity,
students
generate
a
list
of
why
soils
are
important.
In
the
second
activity,
students
are
asked
to
describe
the
five
factors
that
form
a
unique
soil
profile
and
to
explore
these
concepts.
In
the
third
activity,
students
are
shown
a
demonstration
of
how
much
soil
there
is
on
Earth
that
is
available
...
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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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