 2 Glass Containers
 Aluminum Foil
(should hold 1 liter)
 This Data sheet
 2 liters Pond Water *  Microscope
(containing organisms
and algae)
or hand lens
(optional)
* Be sure to get permission to collect pond water!
+
1.
Step 1
Step 2
1.
2.
2.
3.
Place an empty cup in the middle of the
bowl. equal amounts of pond
Pour
water
intointo
your
Pour water
thetwo
bowlclass
until containers.
it
surrounds
the
cup
but
doesn‛t
make
the
Observe
cup float. and examine pond water.
your observations on your
Place an empty cup in the middle of the
bowl. guide.
field
4. (observe
Pour water
the color,
bowl until
First observations of pond water
andinto
record
odoritalgae etc).
surrounds the cup but doesn‛t make the
cup float.
Observe:
one jar in aluminum foil so that it receives
the other jar where it will
The sun will evaporate the water into
water vapor.
but not too much direct sunlight
WAIT for 6 - 7 days to allow the sunlight
(or lack
thereof)
dountil
it’s work.
The water
vapor
will to
rise
it reaches
thealuminum
plastic wrap.
6 - 7 have gone by, remove the
foil place both containers side by side.
your next observations on your
guide
(below)
compare
theminto
before
Thefield
water
vapor
willand
then
condense
answering the questions on the nextwater
page droplets.
of your field guide.
The water droplets will collect together
Observations of pond water afterabove
6 or 7the
dayscup (where the weight is
(record your observations of color, odor, located).
algae etc).