Rocks And Minerals Post-assessment (Earth Science Regents)
Rocks and Minerals Post-Assessment (Earth Science Regents)
- 1.
The table below shows the hardness of four materials. Which statement best describes the hardness of dolomite. This question may require the use of the Earth Science Reference Tables (Standard 3.1 a) Hardness of Four Materials Material Hardness Human Fingernail 2.5 Copper Penny 3.0 Window Glass 4.5 Steel Nail 6.5
- A.
Dolomite can scratch a copper penny, but cannot be scratched by a steel nail.
- B.
Dolomite can scratch window glass, but cannot be scratched by a fingernail.
- C.
Dolomite can scratch window glass, but cannot be scratched by a steel nail.
- D.
Dolomite can scratch a copper penny, but cannot be scratched by a fingernail.
- E.
Dolomite cannot be scratched by any other material.
Correct Answer
D. Dolomite can scratch a copper penny, but cannot be scratched by a fingernail.Explanation
Dolomite can scratch a copper penny, but cannot be scratched by a fingernail. This is because the hardness of dolomite falls between the hardness of a copper penny (3.0) and a human fingernail (2.5). According to the Mohs scale of hardness, a material can scratch another material if its hardness is greater. Since dolomite can scratch a copper penny, it means that dolomite has a hardness greater than 3.0. However, dolomite cannot be scratched by a fingernail, which has a hardness of 2.5. Therefore, the statement accurately describes the hardness of dolomite in comparison to the other materials listed.Rate this question:
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- 2.
Part of a gemstone’s value is based on the way the gemstone shines in reflected light. The way a mineral reflects light is described as the mineral’s. This question may require the use of the Earth Science Reference Tables (Standard 3.1a).
- A.
Fracture
- B.
Hardness
- C.
Streak
- D.
Luster
- E.
Cleavage
Correct Answer
D. LusterExplanation
Luster refers to the way a mineral reflects light. It describes the appearance or quality of the shine on the surface of a gemstone when light is reflected off of it. Different minerals can have different types of luster, such as metallic, vitreous (glassy), pearly, or silky. The luster of a gemstone is an important factor in determining its value, as it contributes to its overall appearance and beauty.Rate this question:
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- 3.
The graph below shows the relationship between mass and volume for three samples, A, B, and C, of a given material. What is the density of this material? This question may require the use of the Earth Science Reference Tables (Standard 3.1a).
- A.
1.0 g/cm3
- B.
2.0 g/cm3
- C.
5.0 g/cm3
- D.
10.0 g/cm3
- E.
20.0 g/cm3
Correct Answer
D. 10.0 g/cm3Explanation
The density of a material is defined as its mass per unit volume. In the given graph, the density can be determined by finding the slope of the line connecting the points for samples A, B, and C. The slope represents the change in mass divided by the change in volume. From the graph, it can be observed that the slope is equal to 10.0 g/cm3, indicating that the density of the material is 10.0 g/cm3.Rate this question:
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- 4.
The diagrams below show the crystals of four different rocks viewed through the same hand lens. Which crystals most likely formed from molten material that cooled and solidified most rapidly? This question may require the use of the Earth Science Reference Tables (Standard 3.1b).Choice A:Choice B:Choice C:Choice D:
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
D. DExplanation
The crystals in choice D appear to be small and tightly packed together. This suggests that they formed from molten material that cooled and solidified rapidly. When molten material cools quickly, there is less time for the crystals to grow, resulting in smaller and more closely packed crystals.Rate this question:
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- 5.
Which three minerals are most commonly found in the igneous rock granite? This question may require the use of the Earth Science Reference Tables (Standard 3.1c).
- A.
Plagioclase feldspar, pyroxene, and olivine
- B.
Plagioclase feldspar, potassium feldspar, and quartz
- C.
Amphibole, calcite, and hematite
- D.
Amphibole, biotite mica, and gypsum
- E.
Biotite, Olivine, and pyroxine
Correct Answer
B. Plagioclase feldspar, potassium feldspar, and quartzExplanation
The minerals that are most commonly found in the igneous rock granite are plagioclase feldspar, potassium feldspar, and quartz. These minerals are commonly found in granite and are used to identify and classify the rock. Plagioclase feldspar and potassium feldspar are both types of feldspar minerals, which are abundant in granite. Quartz is also commonly found in granite and is a major component of the rock. Together, these three minerals make up the majority of the composition of granite.Rate this question:
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- 6.
Which rock is metamorphic and shows evidence of foliation? This question may require the use of the Earth Science Reference Tables (Standard 3.1c).
- A.
Rock 1
- B.
Rock 2
- C.
Rock 3
- D.
Rock 4
- E.
None of the rocks represented are metamorphic.
Correct Answer
A. Rock 1Explanation
Rock 1 is the correct answer because it is the only rock that is described as metamorphic and shows evidence of foliation.Rate this question:
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- 7.
Rocks are classified as igneous, sedimentary, or metamorphic based primarily on their (Standard 2.1m):
- A.
Texture
- B.
Mineral Composition
- C.
Method of Formation
- D.
Crystal or Grain Size
- E.
Density
Correct Answer
C. Method of FormationExplanation
Rocks are classified as igneous, sedimentary, or metamorphic based primarily on their method of formation. This is because the process by which a rock is formed determines its characteristics and properties. Igneous rocks are formed from the solidification of molten material, sedimentary rocks are formed from the accumulation and compaction of sediment, and metamorphic rocks are formed from the transformation of existing rocks through heat and pressure. Therefore, the method of formation is a key factor in classifying rocks into these three major categories.Rate this question:
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- 8.
The fossil below was found in surface bedrock in the eastern United States. Which statement best describes the formation of the rock containing this fossil? This question may require the use of the Earth Science Reference Tables (Standard 1.2f).
- A.
The rock was formed by the metamorphism of sediments deposited in a terrestrial environment during the Cretaceous Period.
- B.
The rock was formed by the compaction and cementation of sediments deposited in a terrestrial environment during the Triassic Period.
- C.
The rock was formed from the solidification of magma in a marine environment during the Triassic Period.
- D.
The rock was formed by the metamorphism of sedimentary deposited in a terrestrial environment during the Triassic Period.
- E.
The rock was formed by the compaction and cementation of sediments deposited in a marine environment during the Cambrian Period.
Correct Answer
E. The rock was formed by the compaction and cementation of sediments deposited in a marine environment during the Cambrian Period.Explanation
The correct answer suggests that the rock containing the fossil was formed through the compaction and cementation of sediments deposited in a marine environment during the Cambrian Period. This means that the sediments were compacted and hardened over time, forming a solid rock. The mention of a marine environment indicates that the sediments were deposited in a body of water, such as a sea or ocean. The Cambrian Period refers to a geological time period that occurred approximately 541 to 485 million years ago, known for the rapid diversification of life forms.Rate this question:
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- 9.
New York State bedrock in the Allegheny Plateau was formed as a result of which of the following processes? This question may require the use of the Earth Science Reference Tables (Standard 2.1v).
- A.
From clay and sand grain deposited, and cemented together by minerals
- B.
In Earth’s interior where temperatures exceeded the melting point of quartz
- C.
On Earth’s surface from the cooling of molten lava
- D.
In a desert when heat and metamorphic pressure caused quartz crystals to fuse together
- E.
Meteor impact from a large asteroid 65 million years ago
Correct Answer
A. From clay and sand grain deposited, and cemented together by mineralsExplanation
The correct answer is "From clay and sand grain deposited, and cemented together by minerals." This process refers to the formation of sedimentary rock, which occurs when sediments like clay and sand are deposited, compacted, and cemented together by minerals over time. This process is common in areas like the Allegheny Plateau, where layers of sediment accumulate and eventually harden into bedrock.Rate this question:
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- 10.
Which of the following choices best represents the particle size range of sand? This question may require the use of the Earth Science Reference Tables (Standard 2.1v).
- A.
0.0004 cm and less
- B.
0.0004 cm to 0.006 cm
- C.
0.006 cm to 0.2 cm
- D.
0.2 cm to 6.4
- E.
6.4 cm to 25.6
Correct Answer
C. 0.006 cm to 0.2 cmExplanation
Sand particles are categorized as being between 0.006 cm and 0.2 cm in size. This range is determined by the Earth Science Reference Tables (Standard 2.1v).Rate this question:
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- 11.
Rate, on a scale of 1 – 4, 1 being the lowest and 4 being the highest, how much you already know about maps and measurement.
Correct Answer
1
2
3
4Explanation
The answer "1,2,3,4" suggests that the person has knowledge about maps and measurement across all levels, from the lowest to the highest. It implies that the person has a comprehensive understanding of maps and measurement, ranging from basic concepts to advanced techniques.Rate this question:
- 12.
Rate, on a scale of 1 – 4, 1 being the lowest and 4 being the highest, how interested are you in maps and measurement.
Correct Answer
1
2
3
4Explanation
The given answer options suggest that the question is asking the respondent to rate their level of interest in maps and measurement on a scale of 1 to 4. The answer indicates that the respondent can choose any number from 1 to 4 to indicate their level of interest, with 1 being the lowest and 4 being the highest.Rate this question:
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Mar 22, 2023Quiz Edited by
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Nov 06, 2010Quiz Created by
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