31 questions
Process by which rock materials are broken down by the action of physical or chemical processes.
Erosion
Weathering
Deposition
Sediment
The mechanical breakdown of rocks into smaller pieces.
Physical weathering
Erosion
Chemical weathering
Deposition
The breakdown and decomposition of rocks as a result of chemical reactions and processes.
Physical weathering
Erosion
Chemical weathering
Deposition
Which of the following is an example of physical weathering?
Abrasion
Acid rain
Oxidation
Plants producing acids
Which of the following is not an example of physical weathering?
Abrasion
Temperature changes
Ice
Acids breaking down rocks
Which of the following is an example of chemical weathering?
Water freezing
Abrasion
Oxidation
Pressure changes
Which of the following is not an example of chemical weathering?
Acid rain
Plants that produce weak acids
Oxidation
Pressure changes
Fragments of weathered rock
Sediment
Rocks
Minerals
Ore
A larger block of rock will weather more slowly than smaller broken pieces of the same rock.
True
False
Which of the following are factors that influence the rate of weathering? Select all that apply.
Composition
Surface area
Location
Climate
Resistance to weathering is not affected by composition of, or chemicals that make up, the rock.
True
False
Rocks of steep slopes are more likely to be displaced by gravity and exposed to wind, water, and air.
True
False
Climate does not affect the rate of physical or chemical weathering.
True
False
The process by which wind, water, ice, or gravity transport weathered materials from one location to another.
Erosion
Deposition
Weathering
Wind
This occurs when eroded materials are dropped, or laid down.
Erosion
Weathering
Deposition
Destroyed
When wind and water lose energy and slow down, they drop their sediments and deposition occurs.
True
False
For which of the following can you find evidence in this photo? Select all that apply.
Deposition
Erosion
Physical weathering
Chemical weathering
Which processes could be primarily responsible for the formation of the alluvial fan shown in the photo? Select all that apply.
wind storms coming through the base of the mountains into the valley
water flowing down from the mountains and depositing sediment at the base
rocks and boulders falling down the mountains and piling up at the base
How does a glacier affect an area? Select all that apply.
As a glacier moves across a valley is deposits rocks and boulders.
Glaciers can form jagged peaks and flatten or scoop out large sections of land creating valleys.
Glaciers erode soil, rock, and large boulders from the valley floor and carry them off.
Which of the following are examples of water and gravity working together to erode soil, sediment, and rock? Select all that apply.
Wind carries sediment and then it continues to travel in waves.
Streams flow because of gravity. The flow causes erosion of material in its path.
Gravity causes glaciers to move down-slope, and glaciers erode rock underneath of them.
Which of the following are examples of water depositing rock, soil, and sediment? Select all that apply.
Waves can deposit sediment in areas offshore, where they build up to be sandbars and sand dunes.
Rivers can carry sediment downstream to deposit it when the water enters into a larger body of water.
Wind carrying sand.
Glaciers eroded sediment and rock as it moves through a valley.
Which of the following is a factor in weathering caused by gravity?
size of the boulders at the base of the glacier
presence of living organisms on the rocks
presence of water at one end of the glacier
slope of the ground that the glacier is on
Which evidence in the picture best illustrates the occurrence of deposition?
the glacier ending in water
rocks and sediment at the edges of the glacier
the color of the rock formations
areas of water where the glacier may be melting
What type of physical weathering could cause rock to break apart?
abrasion of the surface caused by rocks being moved under a sliding glacier
gravity acting upon the loose rocks and dirt in the area
water freezing in the crevasses
Which statements describe physical weathering? Select all that apply.
Two rocks hit against each other in a fast-flowing stream and break apart.
Oxygen and water change the composition of the minerals in a rock.
Small rocks are pushed together when a mole digs an underground den.
Mosses grow on a rock and produce acids that wear away the rock over time.
Which description is evidence of chemical weathering?
A rock in a windy desert has scratches on its surface.
A rock in a tundra has deep cracks filled with ice.
A rock turns a reddish color when exposed to air and water.
A rock on a steep slope falls to the ground and breaks apart.
What type of weathering?
Chemical
Physical
What type of weathering?
Chemical
Physical
What type of weathering? (Note the color of the rock)
Chemical
Physical
What type of weathering? (Note the texture of the rock surface.)
Chemical
Physical
What type of weathering?
Chemical
Physical