SCIN 138 LAB 7

Question 1 of 33 3.03/ 3.0303 Points

Questions 1 through 5 are based on Lab Exercise #1: Grain Analysis.

1. Bag A contains A.well-sorted sand. B.clay.
Correct C.a moderately sorted mix of sand and silt. D.a poorly sorted mix of gravel and sand.

Answer Key: C Feedback: The correct answer is C. a moderately sorted mix of sand and silt.

Question 2 of 33 3.03/ 3.0303 Points

Bag B contains
Correct A.well-sorted sand. B.clay. C.a poorly sorted mix of sand and silt D.a poorly sorted mix of gravel and sand.

Answer Key: A Feedback: The correct answer is A. well-sorted sand.

Question 3 of 33 3.03/ 3.0303 Points

Bag C contains A.well-sorted clay.
Correct B.well-sorted gravel (with some sand from transport). C.poorly sorted sand (with some silt from transport). D.a poorly sorted mix of gravel and sand.

Answer Key: B Feedback: The correct answer is B. well-sorted gravel (with some sand from transport).

Question 4 of 33 3.03/ 3.0303 Points

Bag D contains
Correct A.clay. B.well-sorted gravel. C.a poorly sorted mix of sand and silt. D.a poorly sorted mix of gravel and sand.

Answer Key: A Feedback: The correct answer is A. clay.

Question 5 of 33 3.03/ 3.0303 Points

Bag E contains A.well-sorted sand. B.well-sorted gravel. C.a poorly sorted mix of sand and silt.
Correct D.a poorly sorted mix of gravel, sand, and silt.

Answer Key: D Feedback: The correct answer is D. a poorly sorted mix of gravel, sand, and silt.

Question 6 of 33 3.03/ 3.0303 Points

Questions 6 through 20 are based on Lab Exercise #2: Identification of Sedimentary Rocks.

6. The mineral grains in Specimen #11 are A.biotite mica. B.feldspar.
Correct C.quartz. D.hornblende.

Answer Key: C Feedback: The correct answer is C. quartz.

Question 7 of 33 3.03/ 3.0303