Download Weathering Erosion Review - OG

Weathering & Erosion Review
Practice Questions – Do your best!
1. Mechanical weathering by plants is most effective
A. in a desert.
B. in a forest.
C. in a stream.
D. on a mountaintop.
2. Abrasion would be most effective on a rock
A. covered with ice.
B. with a small surface area.
C. in a swiftly flowing stream.
D. when temperatures are low.
3. Which models chemical weathering?
A. exposing a rock to rain
B. freezing a rock in a container of water
C. breaking rock into pieces with a hammer
D. shaking a container of sand with a rock in it
4. Inorganic components of most soils include
A. clay, sand, and bacteria.
B. air, water, and minerals.
C. partially composed matter.
D. parent material and animal waste.
5. In which location would soil form the fastest?
A. a plain near the poles
B. a forest in a warm climate
C. a cold mountainous region
D. a gentle slope in a dry climate
6. Which is true?
A. All weathering occurs faster near the poles.
B. Ice wedging is a minor process of weathering.
C. Steep slopes slow down the weathering process.
D. Normal water causes the most mechanical weathering.
7. Mechanical weathering is any process that
A. does not form a soil horizon.
B. breaks rocks into smaller pieces.
C. changes minerals into new ones.
8. Chemical weathering changes the
A. size of a rock.
B. materials in rock.
C. the horizons of a rock.
9. Parent material in soil is in the
A. A-horizon.
B. B-horizon.
C. C-horizon.
10. a) What is an organic material in soil?
Dead plants/animals, leaves, animal poo, bacteria, worms
11. a)soil layer with the most organic material
HORIZON A
12. Rock that undergoes ________________ combines with
oxygen from the air.
Oxidation
13. A pile of windblown sand is a ….
Dune
14. A crumbly, windblown deposit of silt and clay is a…
Loess
Matching:
15. a pile of angular rocks and sediment from
a rockfall
16. a mixture of various sizes of sediment
deposited by a glacier
F. Till
G. Stalactite
H. Alluvial fan
17. an apron of sediment formed where a
stream flows from a steep, narrow canyon
onto a plain
I. Outwash
18. formed by mineral deposits in caves
J. Talus
19. the sediment deposited by streams that
flow from a melting glacier
*KEY* J F H G I
True or False?
1. Mechanical weathering changes the size of a rock.
2. Chemical weathering changes the materials in a rock.
3. Ice wedging is a chemical weathering process.
4. A rock with a great deal of surface area weathers more easily.
5. Weathering prevents plants from getting water and substances it
contains.
6. Acid rain causes less chemical weathering than normal rain.
7. Oxidation is a type of mechanical weathering.
8. Dissolving can be an example of chemical weathering.
9. Most types of weathering are slower in cold, dry places.
10. Rocks containing minerals with low hardness undergo
*KEY* 1 T. 2.T 3. F 4. T 5. F 6. F 7. F 8. T 9. T 10. T
How did you do?
Review your book and notecards
for test tomorrow!!!