ESS 101 B LAB 5 QUIZ: SEDIMENTARY
ROCKS | COMPLETE PRACTICE EXAM |
STUDY GUIDE | LATEST UPDATE 2026/2027 |
ACTUAL EXAM | PRACTICE QUESTIONS
AND ANSWERS | EXAM REVIEW | 100%
CORRECT ANSWERS | VERIFIED
SOLUTIONS
This comprehensive practice examination is designed for students preparing for the ESS 101 B
Lab 5 Quiz on Sedimentary Rocks at the University of Washington. It covers all essential topics
including weathering processes, sediment transport and deposition, lithification and diagenesis,
clastic (detrital) sedimentary rock classification, chemical and biochemical sedimentary rocks,
sedimentary structures, depositional environments, and economic resources. Each question is
crafted to reflect the rigor and format of the actual lab quiz, with verified answers and detailed
rationales to help you master the material and achieve a top score on your 2026/2027
assessment.
Table of Contents
1. Weathering and Sediment Formation
2. Sediment Transport, Deposition, and Lithification
3. Clastic (Detrital) Sedimentary Rocks
4. Chemical and Biochemical Sedimentary Rocks
5. Sedimentary Structures and Environments
6. Diagenesis, Provenance, and Economic Resources
, Question 1:
Sedimentary rocks form from which of the following processes?
A) Cooling and solidification of magma
B) Recrystallization under heat and pressure
C) Accumulation, compaction, and cementation of sediments
D) Melting of pre-existing rocks
Correct Answer: C
Sedimentary rocks form from the accumulation, compaction, and cementation of sediments
(particles of pre-existing rocks, minerals, or organic matter). Option A describes igneous rocks,
Option B describes metamorphic rocks, and Option D describes the formation of magma.
Question 2:
What is the correct order of the processes that produce sedimentary rocks from pre-existing
rocks?
A) Erosion → Weathering → Deposition → Lithification
B) Weathering → Erosion → Deposition → Lithification
C) Deposition → Weathering → Erosion → Lithification
D) Lithification → Weathering → Erosion → Deposition
Correct Answer: B
The correct sequence is weathering (breaking down rocks), erosion (transport of sediments),
deposition (sediments settle), and lithification (compaction and cementation).
(Page 2)
Question 3:
Weathering is the process of:
A) Transporting sediments by wind or water
B) Breaking down rocks into smaller particles
C) Compacting sediments into solid rock
D) Melting rocks into magma
Correct Answer: B
Weathering is the physical and chemical breakdown of rocks at or near the Earth's surface.
Option A describes erosion, Option C describes lithification, and Option D describes melting.
Question 4:
Physical (mechanical) weathering breaks rocks into smaller pieces without changing their:
A) Size
B) Shape
C) Chemical composition
D) Density
Correct Answer: C
Mechanical weathering breaks rocks into smaller fragments without altering their mineral
ROCKS | COMPLETE PRACTICE EXAM |
STUDY GUIDE | LATEST UPDATE 2026/2027 |
ACTUAL EXAM | PRACTICE QUESTIONS
AND ANSWERS | EXAM REVIEW | 100%
CORRECT ANSWERS | VERIFIED
SOLUTIONS
This comprehensive practice examination is designed for students preparing for the ESS 101 B
Lab 5 Quiz on Sedimentary Rocks at the University of Washington. It covers all essential topics
including weathering processes, sediment transport and deposition, lithification and diagenesis,
clastic (detrital) sedimentary rock classification, chemical and biochemical sedimentary rocks,
sedimentary structures, depositional environments, and economic resources. Each question is
crafted to reflect the rigor and format of the actual lab quiz, with verified answers and detailed
rationales to help you master the material and achieve a top score on your 2026/2027
assessment.
Table of Contents
1. Weathering and Sediment Formation
2. Sediment Transport, Deposition, and Lithification
3. Clastic (Detrital) Sedimentary Rocks
4. Chemical and Biochemical Sedimentary Rocks
5. Sedimentary Structures and Environments
6. Diagenesis, Provenance, and Economic Resources
, Question 1:
Sedimentary rocks form from which of the following processes?
A) Cooling and solidification of magma
B) Recrystallization under heat and pressure
C) Accumulation, compaction, and cementation of sediments
D) Melting of pre-existing rocks
Correct Answer: C
Sedimentary rocks form from the accumulation, compaction, and cementation of sediments
(particles of pre-existing rocks, minerals, or organic matter). Option A describes igneous rocks,
Option B describes metamorphic rocks, and Option D describes the formation of magma.
Question 2:
What is the correct order of the processes that produce sedimentary rocks from pre-existing
rocks?
A) Erosion → Weathering → Deposition → Lithification
B) Weathering → Erosion → Deposition → Lithification
C) Deposition → Weathering → Erosion → Lithification
D) Lithification → Weathering → Erosion → Deposition
Correct Answer: B
The correct sequence is weathering (breaking down rocks), erosion (transport of sediments),
deposition (sediments settle), and lithification (compaction and cementation).
(Page 2)
Question 3:
Weathering is the process of:
A) Transporting sediments by wind or water
B) Breaking down rocks into smaller particles
C) Compacting sediments into solid rock
D) Melting rocks into magma
Correct Answer: B
Weathering is the physical and chemical breakdown of rocks at or near the Earth's surface.
Option A describes erosion, Option C describes lithification, and Option D describes melting.
Question 4:
Physical (mechanical) weathering breaks rocks into smaller pieces without changing their:
A) Size
B) Shape
C) Chemical composition
D) Density
Correct Answer: C
Mechanical weathering breaks rocks into smaller fragments without altering their mineral
