of Earth Science |Northeastern
Water Levels in Wells
1) Find the depth to water in the well to which you are assigned
(circle one): Well
#1 / Well
#2 / Well #3.
2) Find the total depth of the well.
3) Determine the volume of water
that is standing in the well right now.
4) Determine how many five gallon buckets it would take to hold this
5) Determine how many five-gallon
buckets of water it would take to hold half the volume
of water in the well.
Before you perform the next steps,
carefully review them all and develop a plan for making the required
measurements. Then, check with the instructor before proceeding.
6) Mark the time before you begin. Remove from the well
the volume you calculated in Step 5. Immediately
after withdrawing this volume of water, measure depth to water
again. (Later, in the lab
report, explain your observations.)
7) Monitor water level frequently for the next several minutes,
recording time and depth measurements.
8) Prepare a graph of the data you
recorded in Step 6. Label the graph with your names and the Well
Number, and post the graph on the chalkboard.
9) Explain your
observations. Also explain any differences between what is shown
by your graphed data and that of the other groups.
10) Make a list of variables
that might affect the relationship between pumping and water level in
11) Propose a test that would allow you to quantify the relationship
between pumping and water level in the well.
Prepare a neat report that includes the following items:
* Group members' names
* Well number
* Your responses to Steps 1-11, including a neat table showing
your data, and your graph.
Before leaving, hand in one lab report per group. All group
members will receive the same grade on the lab.
of Earth Science | Northeastern
© 2005 Laura L.
Last updated August 31, 2005.