Introductory geology opens with what looks like pure memorization — a list of minerals, a list of rock names — and then examines you on something else entirely. Physical Geology, 14th Edition by Plummer builds its early chapters so that composition explains texture, texture explains cooling history, and cooling history explains where a rock formed. The students who struggle are usually the ones who learned the names without the chain that connects them, so a question describing an unfamiliar sample by its silica content and grain size leaves them nothing to reason from.
Why this test bank helps
An answer key confirms a letter; it does not tell you which link in the chain you were missing. Each question here carries a written rationale that spells out the reasoning — why a glassy texture implies rapid quenching, why a felsic magma is viscous, why one mineral crystallizes out of a melt before another. Once you can produce that reasoning yourself, identification questions stop being recall and become inference, which is what the exam is actually testing.
What’s inside
- Questions that follow the textbook chapter by chapter, so a week of reading maps to a defined block of practice.
- A mix of multiple choice, true/false and matching items, including identification and interpretation questions.
- A written rationale under every question, naming the property or process that decides the answer.
- Strong coverage of minerals, igneous rocks and volcanism, where the course sets its foundation.
- A single organized PDF, downloadable as soon as checkout completes.
Topics covered
- Minerals — silicate structures, cleavage, hardness, luster and the diagnostic properties used to identify them
- Igneous rocks — composition and texture, intrusive versus extrusive settings and the classification grid
- Bowen’s reaction series — crystallization order, magmatic differentiation and how a melt changes composition
- Volcanoes and eruption style — viscosity, gas content, shield and composite cones and pyroclastic products
- Weathering and sedimentary rocks — physical and chemical breakdown, clastic and chemical classification, depositional environments
- Metamorphism — heat, pressure and fluids, foliated and non-foliated textures and the index minerals of each grade
- The rock cycle — how material moves between the three families and the tectonic settings that drive it
- Earth materials and resources — ore deposits, industrial minerals and the geological settings that concentrate them
Who it’s for
Students in an introductory physical geology or earth materials course using the fourteenth edition — geology and environmental science majors in their first year, and students taking the course to satisfy a laboratory science requirement.
How to use it (the right way)
Work through the chapter and its diagrams before you test yourself, since practice questions expose gaps rather than fill them. Then attempt a block closed-book, mark every item where you guessed, and read those rationales first. This is a study aid. Use it in line with your institution’s academic-integrity policy — as preparation and self-assessment, not as a shortcut around the coursework and not as material carried into a graded assessment.
Sample question (shows the format — your download contains the full set)
Q. A volcanic rock is light in color, has a very fine-grained groundmass, and formed from a magma high in silica. Which eruption style is most consistent with that sample?
- A. Quiet effusive flows travelling many kilometres
- B. Explosive eruption producing ash and pyroclastic material
- C. Continuous fissure eruption building broad basalt plateaus
- D. No eruption at all, because high-silica magma never reaches the surface
Answer: B. High silica content makes a magma viscous, so dissolved gas cannot escape gradually and pressure is released violently as ash and pyroclastic material; the fine grain size confirms rapid cooling at the surface. A and C describe low-silica basaltic magma, fluid enough to flow freely and build shields or plateaus. D is wrong because felsic magmas do erupt — explosively, which is precisely why they are hazardous.
Edition & format
- Matches: Physical Geology, 14th Edition, by Plummer (ISBN 9780073369389).
- Format: Digital PDF, delivered instantly after checkout.
- Access: Lifetime — re-download from your account whenever you need it.
Chapter numbering and figure references change between editions of this book. Please confirm the edition and ISBN above match your assigned text before buying.
Frequently asked questions
Is this the current edition? This set is written against the fourteenth edition, ISBN 9780073369389. Later editions of Physical Geology are listed separately, because coverage and numbering are not identical.
How do I receive it? It downloads immediately at the end of checkout, and the file also stays in your account for later. Nothing is posted to you.
Do all the questions include rationales? Yes. Each item is followed by an explanation of why the answer holds and why the alternatives do not.
Is using a test bank allowed? It is a practice resource, used the way you would use any question set. Follow your institution’s academic-integrity policy and keep it out of graded assessments.
More study material for this subject is in Earth & Environmental Science Test Banks.
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