Weathering and Soil Flashcards
(25 cards)
What is weathering?
Weathering is the process of breaking down rocks into smaller pieces.
True or False: Erosion is the movement of weathered material from one place to another.
True
Fill in the blank: __________ is caused by wind, water, ice, and gravity.
Erosion
What are the two main types of weathering?
Mechanical weathering and chemical weathering.
Multiple Choice: Which of the following is an example of mechanical weathering? A) Rusting B) Ice wedging C) Dissolving
B) Ice wedging
What is chemical weathering?
Chemical weathering is the process that changes the composition of rocks through chemical reactions.
True or False: Erosion can occur without weathering.
False
What role does water play in erosion?
Water can carry away soil and rock particles, leading to erosion.
Fill in the blank: __________ weathering involves the physical breakdown of rocks without changing their chemical composition.
Mechanical
Multiple Choice: Which process can lead to the formation of soil? A) Erosion B) Weathering C) Both A and B
C) Both A and B
What is soil erosion?
Soil erosion is the removal of the top layer of soil, often due to wind or water.
True or False: Vegetation can help prevent erosion.
True
What is the difference between weathering and erosion?
Weathering breaks down rocks; erosion moves the broken pieces.
Fill in the blank: __________ is a natural force that can cause erosion by transporting sediment.
Wind
Multiple Choice: What can cause chemical weathering? A) Water B) Temperature changes C) Both A and B
C) Both A and B
What is sediment?
Sediment is tiny pieces of rock and soil that are carried away by erosion.
True or False: Erosion can be accelerated by human activities.
True
What is freeze-thaw weathering?
Freeze-thaw weathering occurs when water seeps into cracks in rocks, freezes, expands, and breaks the rock apart.
Fill in the blank: __________ is a type of erosion caused by the flow of rivers and streams.
River erosion
Multiple Choice: Which of the following can help reduce erosion? A) Deforestation B) Planting trees C) Urban development
B) Planting trees
What is the term for the process of rocks wearing away due to contact with other rocks?
Abrasion
True or False: Landslides are a form of erosion.
True
What is the impact of erosion on landscapes?
Erosion can change the shape of landscapes, creating valleys and canyons.
Fill in the blank: __________ weathering occurs when minerals in rocks react with water or air.
Chemical