
Mechanical & Chemical Weathering
Flashcard
•
Science
•
6th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is mechanical weathering?
Back
Mechanical weathering is the process of breaking down rocks into smaller pieces without changing their chemical composition. Examples include freeze-thaw cycles and abrasion.
2.
FLASHCARD QUESTION
Front
What is chemical weathering?
Back
Chemical weathering involves the chemical alteration of minerals in rocks, leading to changes in their composition. Examples include rusting of iron and dissolution of limestone.
3.
FLASHCARD QUESTION
Front
What is the role of carbon dioxide in weathering?
Back
Carbon dioxide can dissolve in rainwater to form carbonic acid, which contributes to chemical weathering by breaking down minerals.
4.
FLASHCARD QUESTION
Front
What is ice wedging?
Back
Ice wedging is a type of mechanical weathering where water seeps into cracks in rocks, freezes, expands, and causes the rocks to break apart.
5.
FLASHCARD QUESTION
Front
What is acid rain?
Back
Acid rain is precipitation that contains high levels of sulfuric or nitric acids, which can lead to chemical weathering of rocks and buildings.
6.
FLASHCARD QUESTION
Front
How does oxygen contribute to weathering?
Back
Oxygen can react with minerals in rocks, leading to oxidation, which is a form of chemical weathering that can weaken and change the rocks.
7.
FLASHCARD QUESTION
Front
What is the difference between mechanical and chemical weathering?
Back
Mechanical weathering physically breaks rocks into smaller pieces without changing their composition, while chemical weathering alters the minerals in the rocks.
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