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- 1. Multiple Choice
In which group are all earth materials classified as minerals?
feldspar, quartz, and olivine
granite, rhyolite, and basalt
cobbles, pebbles, and silt
conglomerate, sandstone, and shale
- 2. Multiple Choice
Igneous, sedimentary, and metamorphic rocks are usually composed of
intergrown crystals
fossils
minerals
sediments
- 3. Multiple Choice
Although more than 2000 minerals have been identified, 90% of Earth's lithosphere is composed of the 12 minerals listed.
The best explanation for this fact is that most rocks
are monomineralic
are composed only of recrystalized minerals
have a number of minerals in common
have a 10% nonmineral composition
- 4. Multiple Choice
Which 2 mineral samples would be most difficult to distinguish from each other based on their color, luster, and streak?
halite and quartz
halite and gold
galena and quartz
galena and gold
- 5. Multiple Choice
Which 2 mineral samples most likely have a similar internal arrangement of atoms?
galena and quartz
galena and halite
gold and halite
gold and galena
- 6. Multiple Choice
(USE REFERENCE TABLE)
Which mineral shows no cleavage, has a hardness of at least 6.5, and a composition of SiO2?
Graphite
Garnet
Halite
Quartz
- 7. Multiple Choice
Halite has three cleavage directions at 90o to each other. Which model best represents the shape of a broken sample of halite?
- 8. Multiple Choice
Which Diagram best shows the grain size of some common sedimentary rocks?
Sandstone Shale Siltstone
<---Smaller Grain Larger--->
Shale Siltstone Sandstone
<---Smaller Grain Larger--->
Siltstone Shale Sandstone
<---Smaller Grain Larger--->
Siltstone Sandstone Shale
<---Smaller Grain Larger--->
- 9. Multiple Choice
Two minerals made of pure carbon are diamond and graphite. Which statement best explains why diamond is so much more resistant to scratching than graphite?
The atoms are lighter in graphite than in diamond.
The atoms are heavier in graphite than in diamond.
The atoms are bonded together more strongly in diamond than in graphite.
The atoms are smaller in graphite than in diamond.
- 10. Multiple Choice
Which property best describes a rock which has formed from sediments?
crystalline structure
distorted structure
banding or zoning of minerals
fragmental particles arranged in layers
- 11. Multiple Choice
The diagram represents some conglomerate rock. Some of the rock particles are labeled. Which conclusion is best made about the rock particles?
They are the same age
They originated from a larger mass of igneous rock
They all contain the same minerals
They have different origins
- 12. Multiple Choice
Which sequence of events occurs in the formation of sedimentary rock?
Source material eroded ---> Sediments deposited ---> Sediments compacted and cemented
Sediments compacted and cemented ---> Sediments deposited ---> Source material eroded
Sediments deposited ---> Sediments compacted and cemented ---> Source material eroded
Source material eroded ---> Sediments compacted and cemented ---> Sediments deposited
- 13. Multiple Choice
Which sample would most likely contain fossils?
gneiss
granite
sandstone
basalt
- 14. Multiple Choice
Which group lists rocks in order by grain size from smallest to largest?
conglomerate, sandstone, shale
sandstone, shale, conglomerate
shale, sandstone, conglomerate
shale, conglomerate, sandstone
- 15. Multiple Choice
The profile shows the average diameter of sediment that was sorted and deposited in specific areas A, B, C, and D by a stream entering an ocean.
As compaction and cementation of these sediments eventually occur, which area will become siltstone?
A
B
C
D
- 16. Multiple Choice
Base your answer to the question on the six drawings of sedimentary rock labeled A through F.
Most of the rocks shown were formed by
volcanic eruptions and crystallization
compaction and/or cementation
heat and pressure
melting and/or solidification
- 17. Multiple Choice
Large rock salt deposits in the Syracuse area indicate that the area once had
large forests
a range of volcanic mountains
many terrestrial animals
a warm, shallow sea
- 18. Multiple Choice
Which process could lead most directly to the formation of a sedimentary rock?
metamorphism of unmelted material
slow solidification of molten material
sudden upwelling of lava at a mid-ocean ridge
precipitation of minerals from evaporating water
- 19. Multiple Choice
(Use Reference Table)
Which map symbol is used to represent an organically formed sedimentary rock composed mostly of carbon?
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