Page 352 - Laboratory Manual in Physical Geology
P. 352

b.   Label the part of your Experiment 2 graph where the hole in the bottle would be considered non-artesian, and explain

               why you decided to label that part of the graph.











        EXPERIMENT 2: What happens when water drains
                          from a hole in the side of a bottle?
                                                                                  22
        Procedure:
        1. A small hole was punched in the side of a 2-liter
          plastic bottle, 6 cm above its bottom.                                  20
        2. Tape was placed over the hole.                 Water     Water
        3. The bottle was filled with water to a height of 22 cm.  height  jet    18
        4. The tape was removed, and a jet of water shot out  in bottle  distance
          of the hole. The distance that the water jet shot  (cm)   (cm)          16
          from the bottle to the table top was recorded for  22.0   10.0
          specific water heights in the bottle.
        5. Plot the data on the graph paper to see if there  18.5   9.5           14
          is a trend.                                      16.5     9.0
                                                           14.0     8.0           12
                                                           13.0     7.5           Water height in bottle  10
                                                           11.0     6.0
                                                           10.0     5.5            8
                                                           9.0      4.5
                                                           8.0      3.5            6
                                                           7.5      2.5
           Water                                                                   4
           height             Water jet                    7.0      2.0
          in bottle           distance                     6.5      0
           (cm)                (cm)                        (hole                   2
                                                           height)
                                                                                   0
                                                                                    10   8   6   4   2   0
                                                                                         Water jet distance


           C.      REFLECT & DISCUSS  In Experiment 2, the jet of water was horizontal for a few centimeters, and then gravity exceeded
            the horizontal force and pulled the jet of water down onto the table. Water wells are normally vertical. Make a sketch of how
            you would re-arrange the materials from Expeiment 2 in order to get the jet of water to flow in more of a vertical position,
            like a natural artesian well, and explain how such a situation could occur among layers of sandstone and shale underground.






























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