Objectives 5

Department of Earth Science |Northeastern Illinois University

PRINCIPLES OF HYDROGEOLOGY
ESCI 337
Fall, 2007

Daily Objectives #5 (September 11, 2007) Dr. Sanders

By the end of today's class, you should be able to do the following:

v Water Flow:

Describe in words what makes water flow.
Using simple sketches, show how water would flow from one container (like a rain barrel) into another if they were connected by hoses.
Using simple sketches, show how water would flow from a container filled with saturated sand to another filled with saturated sand if they were connected by hoses.
Explain what would make water flow from one portion of a saturated porous medium (e.g. a unit of saturated sand) to another portion of the same body of saturated material.

v Making a Scientific Presentation:

Organize and verbally convey information on a scientific lab experiment to an audience , supplementing your talk with simple illustrations.

Today's Agenda:

v Debriefing the last weeks' activities: Discuss the meaning/importance/concepts of the rain barrel exercise and the exercise on water levels in wells.

v Ground Water Model (continued from last week): Using the ground water flow model, sketch a diagram showing the following features:
    q surface water
                q    ground water
    q boundaries of the flow system
    q flow directions (use arrows)
    q flow velocities (show areas of fast/medium/slow flow)

v Water Flow--Lab Explorations (continued from last week): Investigate, discover, and articulate the general principles that describe the movement of water and the factors that drive it. Use simple lab set-ups to investigate the movement of water through open conduits and through porous media.

Activities for today (Click here for an MSWord copy of the instructions):

Capillary Action
Infiltration Observation
Darcy Discovery (we'll do this one some other day)

Present your work for one of the activities. (We will split them up to make sure all activities are covered.) In your brief (2-3 minutes) presentation, please convey to the audience information on your experimental setup, your results (they may be numbers, graphs, or verbal observations), and at least one conclusion based on your experimental results.

GENERAL GUIDELINES FOR TODAY'S LAB EXPLORATION:

Discover and articulate the general principles that describe the movement of water and the factors that affect its movement.
Quantify where you can.
Draw diagrams or make graphs to illustrate important points. (Graphs need not have precise measurements or scales—just show general trends.)
Use your imagination and creativity! Can you alter the exploration a little to discover something new?
If you decide you want to use other materials, or you have an idea for improving the experiment, please ask, as we have a whole lab at our disposal.
Clean up after you finish so that the next group will be able to work.
Be prepared to present your results.
Have fun!

Department of Earth Science | Northeastern Illinois University