Have an account?
Skip to Content
Build your own quiz
Suggestions for you
30 questions
Show Answers
See Preview
- 1. Multiple Choice
Which rock is composed of the mineral halite that formed when seawater evaporated?
limestone
dolostone
rock gypsum
rock salt
- 2. Multiple Choice
Which element, found in both biotite mica and muscovite mica, makes up the greatest percent by volume of Earth's crust?
nitrogen
oxygen
potassium
silicon
- 3. Multiple Choice
Which mineral can be found in all samples of rhyolite and andesite?
pyroxene
quartz
biotite
potassium feldspar
- 4. Multiple Choice
The three statements below are observations of the same rock sample:
• The rock has intergrown crystals from 2 to 3 millimeters in diameter.
• The minerals in the rock are gray feldspar, green olivine, green pyroxene, and black amphibole.
• There are no visible gas pockets in the rock.
This rock sample is most likely
sandstone
gabbro
granite
phyllite
- 5. Multiple Choice
Which two properties are most useful in distinguishing between galena and halite?
cleavage and color
luster and color
hardness and streak
streak and cleavage
- 6. Multiple Choice
What is the approximate density of a mineral with a mass of 262.2 grams that displaces 46 cubic centimeters of water?
1.8 g/cm3
5.7 g/cm3
6.1 g/cm3
12.2 g/cm3
- 7. Multiple Choice
Which of the following elements is not found in Plagioclase Feldspar?
Na
Al
Si
Pb
- 8. Multiple Choice
The minerals talc, muscovite mica, quartz, and olivine are similar because they
have the same hardness
are the same color
contain silicon and oxygen
break along cleavage planes
- 9. Multiple Choice
Quartz and halite have different crystal shapes primarily because
light reflects from crystal surfaces
energy is released during crystallization
of impurities that produce surface variations
of the internal arrangement of the atoms
- 10. Multiple Choice
Which process most likely formed a layer of the sedimentary rock, gypsum?
precipitation from seawater
solidification of magma
folding of clay-sized particles
melting of sand-sized particles
- 11. Multiple Choice
Which processes lead directly to the formation of igneous rock?
weathering and erosion
compaction and cementation
heat and pressure
melting and solidification
- 12. Multiple Choice
Obsidian's glassy texture indicates that it formed
slowly, deep below Earth's surface
slowly, on Earth's surface
quickly, deep below Earth's surface
quickly, on Earth's surface
- 13. Multiple Choice
Which igneous rock has a vesicular texture and contains the minerals potassium feldspar and quartz?
andesite
pegmatite
pumice
scoria
- 14. Multiple Choice
Which intrusive igneous rock could be composed of approximately 60% pyroxene, 25% plagioclase feldspar, 10% olivine, and 5% amphibole?
granite
rhyolite
gabbro
basalt
- 15. Multiple Choice
Biotite mica and muscovite mica have different chemical compositions. Compared to the magma from which biotite mica forms, the magma from which muscovite mica forms is usually
more mafic and less dense
more mafic and more dense
more felsic and less dense
more felsic and more dense
- 16. Multiple Choice
Which rock is only formed by regional metamorphism?
slate
hornfels
dunite
marble
- 17. Multiple Choice
The rock formed by contact metamorphism between magma and sandstone would be...
marble
quartzite
phyllite
slate
- 18. Multiple Choice
Which rock formed in the contact metamorphism zone between hot magma and limestone?
marble
basalt
quartzite
hornfels
- 19. Multiple Choice
Which characteristic of the granite intrusion provides the most evidence that it solidified deep underground?
very hard
coarse texture
light color
felsic composition
- 20. Multiple Choice
Rocks can be classified as sedimentary, igneous, or metamorphic based primarily upon differences in their
color
density
origin
age
- 21. Multiple Choice
Particles of which size could have formed shale?
0.2 cm
0.02 cm
0.002 cm
0.0002 cm
- 22. Multiple Choice
Which of the following would be classified as a boulder?
less than 0.2 cm in diameter
0.2 to 6.4 cm in diameter
6.4 to 25.6 cm in diameter
greater than 25.6 cm in diameter
- 23. Multiple Choice
Which statement about the formation of a rock is best supported by the rock cycle?
Magma must be weathered before it can change to metamorphic rock.
Sediment must be compacted and cemented before it can change to sedimentary rock.
Sedimentary rock must melt before it can change to metamorphic rock.
Metamorphic rock must melt before it can change to sedimentary rock.
- 24. Multiple Choice
Rocks are classified as igneous, sedimentary, or metamorphic based primarily on their
texture
crystal or grain size
method of formation
mineral composition
- 25. Multiple Choice
Where are the Earth's sedimentary rocks generally found?
in regions of recent volcanic activity
deep within the Earth's crust
along the mid-ocean ridges
as a thin layer covering much of the continents
- 26. Multiple Choice
Which texture best describes an igneous rock that formed deep underground?
glassy
vesicular
fine grained
coarse grained
- 27. Multiple Choice
Which process could lead directly to the formation of pumice rock?
precipitation of minerals from evaporating seawater
metamorphism of unmelted rock material
deposition of quartz sand
explosive eruption of lava from a volcano
- 28. Multiple Choice
Most rocks that form from fragmental rock particles are classified as
extrusive igneous
intrusive igneous
clastic sedimentary
chemical sedimentary
- 29. Multiple Choice
Soil that contains large quantities of calcium was most likely formed by the weathering of
rock salt
quartzite
coal
limestone
- 30. Multiple Choice
The chemical precipitation of dissolved minerals from ocean water results in the formation of
sedimentary rock
metamorphic rock
fine-grained igneous rock
coarse-grained igneous rock
- Answer choicesTagsAnswer choicesTags