chapter 1.4, weathering, & erosion
DESCRIPTION
Chapter 1.4, Weathering, & Erosion. Weathering. Weathering is the process of breaking surface rock into boulders, gravel, sand, and soil. Weathering can be caused by water, frost, chemicals, and plants. Weathering. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/1.jpg)
Chapter 1.4, Weathering, & Erosion
![Page 2: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/2.jpg)
Weathering
• Weathering is the process of breaking surface rock into boulders, gravel, sand, and soil.
• Weathering can be caused by water, frost, chemicals, and plants.
![Page 3: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/3.jpg)
Weathering
• Water seeps into crack of rocks and then freezes. When water freezes it expands and can split the rock.
• Chemicals can eat away the surface of stones and rocks.
• Tiny seeds can fall into cracks in stones and rocks. As the roots grow and spread, they can break apart rocks.
![Page 4: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/4.jpg)
Weathering
![Page 5: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/5.jpg)
Weathering
![Page 6: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/6.jpg)
Weathering
A close-up view of one of the boulders, showing its weathering pattern
This is a wide view of the boulder field in Ringing Rocks park. It almost appears as if it is a dry river bed, but it's
not.
![Page 7: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/7.jpg)
Erosion
• Erosion is the process of wearing away or moving weathered material.
• Water, wind, and ice are the greatest factors that erode, or wear away surface material.
• Rain and moving water can erode even the hardest of stone over time.
![Page 8: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/8.jpg)
Water Erosion
• Rain fall causes streams and rivers flow faster.
• The faster a river flows, the more soil and sand it picks up and moves.
• The particles in the river water make the water similar to a giant scrub brush that grinds away at the riverbanks and any other surface in its path.
![Page 9: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/9.jpg)
Water Erosion
![Page 10: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/10.jpg)
Water Erosion
![Page 11: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/11.jpg)
Wind Erosion
• Wind Erosion is caused by wind lifting soils and sand.
• When soil is lifted by erosion, the area it came from loses nutrient soil. However, the area that receives the soil often benefits from the added nutrients to the land.
• When sand is eroded, the sand being carried by the wind acts as sandpaper grinding away at the things it comes into contact with.
![Page 12: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/12.jpg)
Wind Erosion
![Page 13: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/13.jpg)
Wind Erosion
![Page 14: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/14.jpg)
Ice Erosion
• Glaciers are giant, slow moving sheets of ice.
• They form in mountains
• Glaciers act as sandpaper as they pick up and carry rocks down the mountainside, grinding smooth everything beneath.
![Page 15: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/15.jpg)
Ice Erosion
![Page 16: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/16.jpg)
Elevation
Height above sea level
![Page 17: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/17.jpg)
Plains
Plains are low-lying stretches of flat or gently rolling land
![Page 18: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/18.jpg)
Plains
Area of level land, usually at a low elevation, and often covered with grasses.
![Page 19: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/19.jpg)
PlateausAn area of flat or rolling land at a high elevation
![Page 20: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/20.jpg)
IsthmusA narrow stretch of land connecting two larger land areas.
![Page 21: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/21.jpg)
Peninsula
Body of land surrounded by water on three sides
![Page 22: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/22.jpg)
IslandBody of land surrounded by water on all sides
![Page 23: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/23.jpg)
Continental Shelf
![Page 24: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/24.jpg)
Continental Shelf
• The plateau off each coast of a continent that lies under the ocean and stretches for several miles .
• At the edge of the shelf, steep cliffs drop down to the ocean floor.
![Page 25: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/25.jpg)
Continental Shelf
![Page 26: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/26.jpg)
Map of the Continental Shelf of the U.S.
![Page 27: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/27.jpg)
Trenches
Deep valleys that line the ocean floor
![Page 28: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/28.jpg)
Trenches
![Page 29: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/29.jpg)
Mariana Trench
![Page 30: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/30.jpg)
Mariana Trench
![Page 31: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/31.jpg)
Mariana Trench
![Page 32: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/32.jpg)
Mount Everest
![Page 33: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/33.jpg)
Strait
Narrow stretch of water joining two larger bodies of water.
![Page 34: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/34.jpg)
Channel
Wide strait or waterway between two landmasses that lie close to each other
![Page 35: Chapter 1.4, Weathering, & Erosion](https://reader036.vdocuments.mx/reader036/viewer/2022081800/56816186550346895dd11cec/html5/thumbnails/35.jpg)
DeltaFlat, low-lying land built up from soil carried downstream by a river and deposited at its mouth.