Weathering and Soil
Flashcard
•
Science
•
6th - 8th Grade
•
Easy
Barbara White
Used 1+ times
FREE Resource
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18 questions
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1.
FLASHCARD QUESTION
Front
Uniformitarianism Noun
[yoo-nuh-form-uh-TAIR-ee-un-iz-um]
Back
Uniformitarianism
The principle stating that geologic processes observed today are the same as those that occurred in the distant past.
Example: Fossils in sediment layers show how geologic processes like sedimentation happen over time.
2.
FLASHCARD QUESTION
Front
Weathering Noun
[weth-er-ing]
Back
Weathering
The natural process that breaks down rocks and other substances on the surface of the Earth into smaller pieces.
Example: A river erodes land, breaking down rocks and soil over time.
3.
FLASHCARD QUESTION
Front
Erosion Noun
[ee-ROH-zhun]
Back
Erosion
The process of removing and transporting rock particles from one location to another by wind, water, ice, or gravity.
Example: A river eroding the land, carrying soil and rock particles downstream.
4.
FLASHCARD QUESTION
Front
Mechanical Weathering Noun
[muh-kan-i-kuhl weth-er-ing]
Back
Mechanical Weathering
The physical process of breaking down rock into smaller pieces without altering its chemical composition.
Example: A river eroding a riverbank shows mechanical weathering as water physically breaks down rock.
5.
FLASHCARD QUESTION
Front
Chemical Weathering Noun
[kem-i-kuhl weth-er-ing]
Back
Chemical Weathering
The process that breaks down rock through chemical reactions, often creating new minerals and substances.
Example: Rainwater causes chemical reactions that break down rocks over time.
6.
FLASHCARD QUESTION
Front
Abrasion Noun
[uh-BRAY-zhun]
Back
Abrasion
The wearing away of rock surfaces by the grinding and scraping action of rock particles carried by natural agents.
Example: A river erodes the land, showing how water carries particles that grind and scrape rock surfaces.
7.
FLASHCARD QUESTION
Front
Frost Wedging Noun
[frost wej-ing]
Back
Frost Wedging
The mechanical weathering process where water freezes and expands in rock cracks, forcing them to widen and break apart.
Example: Water freezes in rock cracks, expands, and breaks the rock apart.
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