Minerals and Rocks Test

  1. Which of these is not true of a mineral?
    a. is composed of rocks. c. is an inorganic solid.
    b. has specific chemical composition. d. has crystalline form.
  2. Which of these properties would not be used to identify a mineral?
    a. smell. c. streak.
    b. luster. d. surface tension.
  3. A rock is
    a. mostly made of minerals. c. an aggregate of one or more minerals.
    b. an conglomerate of one mineral. d. found only on the continents.
  4. Rocks that cooled slowly underground
    a. have small crystals. c. have large crystals.
    b. have no crystals. d. are extrusive.
  5. Rocks that cooled slowly underground
    a. are light colored. c. are intrusive.
    b. are aphanitic. d. are extrusive.
  6. Igneous rocks that have mostly dark minerals
    a. may float in water. c. are found under oceans.
    b. are found on continents. d. are mostly silicate minerals.
  7. The color of an igneous rock reflects its
    a. mineral composition. c. cooling history.
    b. crystal size. d. lithification.
  8. Igneous rock diagram correct placement _________
  9. The two types of sedimentary rock are
    a. large and small crystal. c. high grade and low grade.
    b. geochemical and chemical. d. clastic and chemical.
  10. Pick the correct order from largest to smallest rock fragment sizes:
    a. clay, silt, sand, gravel. c. gravel, sand, silt, clay.
    b. sand, gravel, silt, clay. d. gravel, sand, clay, silt.
  11. When a chemical comes out of a water solution due to vaporization or a chemical reaction we call this a(n)
    a. industrial accident. c. recrystallization.
    b. chemical formula. d. chemical precipitate.
  12. Which is a correct listing of the steps for forming a sedimentary rock.
    a. weathering, erosion, deposition, crystalization. c. weathering, erosion, deposition and lithification.
    b. weathering, erosion, lithification. d. erosion, deposition, lithification.
  13. Acid rain from industrial air pollution would increase what sedimentary process?
    a. weathering. c. deposition.
    b. lithification. d. erosion.
  14. The two processes of lithification are
    a. compaction and secretion. c. compaction and cementing.
    b. mechanical and chemical weathering. d. deposition and sorting.
  15. The agents (forces) that cause metamorphism are
    a. heat, pressure and lithification. c. pressure and chemically-active fluids.
    b. heat, pressure and chemically-active fluids. d. heat and pressure.
  16. Which of these is not a change that occurs during metamorphism
    a. new minerals forming. c. lithification.
    b. recystalization of existing minerals. d. crystal orientation.
  17. The best rocks to look for fossils are
    a. sedimentary. c. igneous.
    b. mineralicous. d. metamorphic.
  18. Pick a rock sample in the room, measure and record this data:
    number/letter mass
    volume density
  19. Label the rock cycle.
    1. _______________
    2. _______________
    3. _______________
    4. _______________
    5. _______________
    6. _______________
    7. _______________
    8. _______________