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In
this
activity
students
construct
a
sundial
and
use
it
to
observe
the
movement
of
the
sun
through
the
sky
over
the
course
of
a
day
by
marking
changes
in
the
position
of
a
shadow
once
each
hour.
Students
determine
the
approximate
time
of
solar
noon
at
their
school
as
indicated
by
the
time
of
the
shortest
shadow.
They
revisit
the
site
on
a
subsequent
day
to
estimate
the
time
of
day
using
their
sundial.
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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
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The
purpose
of
this
resource
is
to
increase
students'
awareness
of
the
qualitative
changes
in
plants
during
green-up
and
green-down
from
which
they
will
be
collecting
quantitative
leaf
change
data,
and
to
develop
an
understanding
of
the
patterns
and
differences
among
plants
at
the
same
location.
Students
will
observe,
compare,
and
classify
plants
during
green-up
or
green-down
and
then
make
inferences
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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 develop an understanding of plants' response to light. Students will do simple investigations to observe plant responses to light.
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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 measure the water content of soil based on the electrical resistance of soil moisture sensors. Students install soil moisture sensors in holes that are 10 cm, 30 cm, 60 cm, and 90 cm deep. They take daily readings of soil moisture data by connecting a meter to the sensors and using a calibration curve to determine the soil water content at each depth.
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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 introduce students to the concept of relative air mass and demonstrate how solar elevation angle affects the intensity of sunlight that reaches an observer on the ground. Students work in teams to calculate air mass using simple geometry. Teacher background materials are included.
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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 resource is to measure the nitrate-nitrogen of water. Students will use a nitrate kit to measure the nitrate-nitrogen in the water at their hydrology site. The exact procedure depends on the instructions in the nitrate kit used.
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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 measure the amount of oxygen dissolved in water. Students use a dissolved oxygen kit or meter to measure the dissolved oxygen in the water at their hydrology site. The exact procedure depends on the instructions in the dissolved oxygen kit or meter used. The meter requires calibration before use.
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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
resource
provides
instructions
on
how
to
log
atmosphere
data
using
a
Rainwise
weather
station.
A
weather
station
is
setup
to
measure
and
record
atmospheric
measurements
at
15-minute
intervals
and
can
be
transferred
to
the
GLOBE
program
via
email.
Students
can
view
data
for
their
school
that
are
continuous
and
show
variations
within
a
day.
The
data
collected
includes
wind
speed
and
direction
and
...
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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
resource
is
to
deepen
students
understanding
of
the
Earth
as
a
system,
and
their
appreciation
for
the
value
of
diagrams
as
tools.
Students
visit
a
study
site,
where
they
observe
and
recall
their
existing
knowledge
of
air,
water,
soil,
and
living
things
to
make
a
list
of
interconnections
among
the
four
Earth
system
components.
They
make
predictions
about
the
effects
of
a
change
...
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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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This
resource
provides
instructions
on
how
to
log
atmosphere
data
using
a
WeatherHawk
weather
station.
A
weather
station
is
setup
to
measure
and
record
atmospheric
measurements
at
15-minute
intervals
and
can
be
transferred
to
the
GLOBE
program
via
email.
Students
can
view
data
for
their
school
that
are
continuous
and
show
variations
within
a
day.
The
data
collected
includes
wind
speed
and
direction
...
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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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