What is physical weathering?
Physical vs. Chemical Weathering

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Science
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Physical 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 oxidation and dissolution.
3.
FLASHCARD QUESTION
Front
What is oxidation in the context of weathering?
Back
Oxidation is a chemical weathering process where oxygen reacts with minerals, often causing rusting in iron-rich rocks.
4.
FLASHCARD QUESTION
Front
What is acid rain?
Back
Acid rain is precipitation that has a lower pH due to pollutants like sulfur dioxide and nitrogen oxides, leading to chemical weathering of rocks.
5.
FLASHCARD QUESTION
Front
How does freeze-thaw action contribute to physical weathering?
Back
Freeze-thaw action occurs when water seeps into cracks in rocks, freezes, expands, and causes the rock to break apart.
6.
FLASHCARD QUESTION
Front
What is an example of chemical weathering affecting buildings?
Back
Acid rain can dissolve limestone and marble in buildings, leading to structural damage.
7.
FLASHCARD QUESTION
Front
What is the difference between physical and chemical weathering?
Back
Physical weathering breaks rocks into smaller pieces without changing their composition, while chemical weathering alters the minerals in the rocks.
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