Page 16 - Laboratory Manual in Physical Geology
P. 16

BIG IDEAS                           PRE-LAB VIDEO

                                                                      Geology is the science of Earth, so geologists are
                                                                    Earth scientists or “geoscientists.” Geologists observe,
                                                                    describe, and model the materials, energies, and
                                                                    processes of change that occur within and among
                                                                    Earth’s spheres over time. They apply their knowledge
                                                                    to understand the present state of Earth, locate and
                                                                    manage resources, identify and mitigate hazards, predict
                                                                    change, and seek ways to sustain the human population.


                                                                      FOCUS YOUR INQUIRY

                                                                          THINK   How and why do geologists observe Earth
                                                                    About It  | materials at different scales (orders of magnitude)?
                                                                          ACTIVITY 1.1 Geologic Inquiry   (p.  3 )

                                                                           |
                                                                          THINK  What materials, energies, and processes of
                                                                    About It  change do geologists study?
                                                                           ACTIVITY 1.2 Spheres of Matter, Energy, and Change   (p.  9 )

                                                                           |
                                                                          THINK  How and why do geologists make models of
                                                                    About It  Earth?
                                                                           ACTIVITY 1.3  Modeling Earth Materials and
                                                                                Processes   (p.  14 )

                                                                           |
                                                                          THINK  How and why do geologists measure Earth
                                                                    About It  materials and graph relationships among Earth
                                                                             materials and processes of change?
                                                                          ACTIVITY 1.4  Measuring and Determining
                                                                                Relationships   (p.  14 )
                                                                           |
                                                                          THINK  How is the distribution of Earth materials related
                                                                    About It  to their density?
                                            1
                                                                           ACTIVITY 1.5 Density, Gravity, and Isostasy   (p.  20 )
                                                                         ACTIVITY 1.6 Isostasy and Earth’s Global Topography   (p.  22 )
                 Thinking Like a

               Geologist



               C ONTRIBUTING  A UTHORS
                  Cynthia Fisher  •    West Chester University of Pennsylvania
                 C. Gil Wiswall  •    West Chester University of Pennsylvania







               Global Positioning System (GPS) devices, like this one on Mount St.
               Helens, are used to detect changes in the elevation of the volcano
               as magma moves beneath it. A rise in elevation of the volcano often
               precedes an eruption.

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