Weathering and Erosion Essential Question How does weathering
![Weathering and Erosion Essential Question: How does weathering and erosion shape our Earth? Weathering and Erosion Essential Question: How does weathering and erosion shape our Earth?](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-1.jpg)
![What is Weathering? • Weathering is the process of breaking down rocks • Two What is Weathering? • Weathering is the process of breaking down rocks • Two](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-2.jpg)
![What is Mechanical Weathering? • Mechanical weathering is breaking down by natural or physical What is Mechanical Weathering? • Mechanical weathering is breaking down by natural or physical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-3.jpg)
![The 3 Types of Mechanical Weathering The 3 Types of Mechanical Weathering](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-4.jpg)
![1. ICE WEDGING When water goes into fractures in rock and freezes, the force 1. ICE WEDGING When water goes into fractures in rock and freezes, the force](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-5.jpg)
![Mount Rushmore – South Dakota Bryce Canyon – Utah Mount Rushmore – South Dakota Bryce Canyon – Utah](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-6.jpg)
![2. Abrasion • Abrasion Bighorn Antelope Mountains Canyon ––Arizona Wyoming – Collision of rocks 2. Abrasion • Abrasion Bighorn Antelope Mountains Canyon ––Arizona Wyoming – Collision of rocks](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-7.jpg)
![Not Just Limited to Rocks…. . Not Just Limited to Rocks…. .](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-8.jpg)
![3. Root Action Slow process When roots spread to break rock 3. Root Action Slow process When roots spread to break rock](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-9.jpg)
![](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-10.jpg)
![Close to Home Close to Home](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-11.jpg)
![What is Chemical Weathering? • Chemical weathering occurs when minerals are chemically changed causing What is Chemical Weathering? • Chemical weathering occurs when minerals are chemically changed causing](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-12.jpg)
![Oxidation 1. Oxidation - chemical reaction with oxygen and iron rich rocks. Causes rocks Oxidation 1. Oxidation - chemical reaction with oxygen and iron rich rocks. Causes rocks](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-13.jpg)
![](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-14.jpg)
![Close to Home Close to Home](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-15.jpg)
![Plant Acids • Some roots and decaying plants give off acids that also dissolve Plant Acids • Some roots and decaying plants give off acids that also dissolve](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-16.jpg)
![Plants – called lichens produce rock dissolving acids that can break down rock. Plants – called lichens produce rock dissolving acids that can break down rock.](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-17.jpg)
![Acid precipitation (Acid Rain) Sulfur & CO 2 from cars and coal/oil mix with Acid precipitation (Acid Rain) Sulfur & CO 2 from cars and coal/oil mix with](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-18.jpg)
![How does the Environment affect Weathering? • Temperature – Different temps give different type How does the Environment affect Weathering? • Temperature – Different temps give different type](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-19.jpg)
![Effects of Climate • Chemical weathering is more rapid in warm, wet climates. • Effects of Climate • Chemical weathering is more rapid in warm, wet climates. •](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-20.jpg)
![I T N E D Y IF P E H T O R E I T N E D Y IF P E H T O R E](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-21.jpg)
![1 1](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-22.jpg)
![1 -Abrasion Mechanical 1 -Abrasion Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-23.jpg)
![2 2](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-24.jpg)
![2 -Onion Skin Weathering Mechanical 2 -Onion Skin Weathering Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-25.jpg)
![3 3](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-26.jpg)
![3 -Chemical Water is wearing away the rock 3 -Chemical Water is wearing away the rock](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-27.jpg)
![4 4](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-28.jpg)
![4 -Freezing and Thawing Mechanical 4 -Freezing and Thawing Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-29.jpg)
![5 5](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-30.jpg)
![5 -Mechanical 5 -Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-31.jpg)
![6 6](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-32.jpg)
![6 -Mechanical & Chemical…. how? 6 -Mechanical & Chemical…. how?](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-33.jpg)
![7 7](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-34.jpg)
![7 -Mechanical Animal Actions 7 -Mechanical Animal Actions](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-35.jpg)
![8 8](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-36.jpg)
![8 -Mechanical with a little Chemical 8 -Mechanical with a little Chemical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-37.jpg)
![9 9](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-38.jpg)
![9 -Chemical 9 -Chemical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-39.jpg)
![10 10](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-40.jpg)
![10 - Mechanical but could possibly be chemical 10 - Mechanical but could possibly be chemical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-41.jpg)
![11 11](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-42.jpg)
![11 -Another rusted bike! 11 -Another rusted bike!](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-43.jpg)
![12 12](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-44.jpg)
![12 -Release of Pressure Mechanical 12 -Release of Pressure Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-45.jpg)
![13 13](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-46.jpg)
![13 -Chemical – Lichen grow, they release chemicals when they grow 13 -Chemical – Lichen grow, they release chemicals when they grow](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-47.jpg)
![14 14](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-48.jpg)
![14 -They call this Potato Chip Rock Could mechanical or chemical…. 14 -They call this Potato Chip Rock Could mechanical or chemical….](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-49.jpg)
![15 15](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-50.jpg)
![15 -Freezing and Thawing Mechanical 15 -Freezing and Thawing Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-51.jpg)
![16 16](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-52.jpg)
![16 -Chemical-Water 16 -Chemical-Water](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-53.jpg)
![17 17](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-54.jpg)
![17 -See the different colors in the rock Chemical from oxidation 17 -See the different colors in the rock Chemical from oxidation](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-55.jpg)
![18 18](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-56.jpg)
![18 -Mechanical What role do humans play in weathering of Earth’s surface? 18 -Mechanical What role do humans play in weathering of Earth’s surface?](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-57.jpg)
![What is Erosion? • Erosion is the removal and transport of material from one What is Erosion? • Erosion is the removal and transport of material from one](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-58.jpg)
![What are the agents of Erosion? • There are 4 main agents of erosion: What are the agents of Erosion? • There are 4 main agents of erosion:](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-59.jpg)
![What happens to the sediments? • When sediments are eroded (moved), they are not What happens to the sediments? • When sediments are eroded (moved), they are not](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-60.jpg)
![• How does Gravity cause Erosion? A mass movement is any type of • How does Gravity cause Erosion? A mass movement is any type of](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-61.jpg)
![What are the different types of mass movement? • Landslide is the most destructive What are the different types of mass movement? • Landslide is the most destructive](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-62.jpg)
![What are the different types of mass movement? • Slump is a mass of What are the different types of mass movement? • Slump is a mass of](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-63.jpg)
![1. What is erosion? 2. What type of mass movement is shown in this 1. What is erosion? 2. What type of mass movement is shown in this](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-64.jpg)
![How do Glaciers cause Erosion? • A glacier is a large mass of ice How do Glaciers cause Erosion? • A glacier is a large mass of ice](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-65.jpg)
![](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-66.jpg)
![How do Glaciers shape the land? • The movement of a glacier changes the How do Glaciers shape the land? • The movement of a glacier changes the](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-67.jpg)
![How do Glaciers shape the land? • As a glacier flows over the land, How do Glaciers shape the land? • As a glacier flows over the land,](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-68.jpg)
![How does wind contribute to erosion? • Wind by itself is the weakest agent How does wind contribute to erosion? • Wind by itself is the weakest agent](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-69.jpg)
![1. What are two ways in which glaciers erode Earth’s surface? 2. What is 1. What are two ways in which glaciers erode Earth’s surface? 2. What is](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-70.jpg)
![How is water an agent of Erosion? • Moving water is the major agent How is water an agent of Erosion? • Moving water is the major agent](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-71.jpg)
![How is water an agent of Erosion? • Ground water is another agent of How is water an agent of Erosion? • Ground water is another agent of](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-72.jpg)
![How do waves contribute to Erosion? • The energy in waves comes from wind How do waves contribute to Erosion? • The energy in waves comes from wind](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-73.jpg)
![1. What is the source of the energy in ocean waves? 2. What process 1. What is the source of the energy in ocean waves? 2. What process](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-74.jpg)
- Slides: 74
![Weathering and Erosion Essential Question How does weathering and erosion shape our Earth Weathering and Erosion Essential Question: How does weathering and erosion shape our Earth?](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-1.jpg)
Weathering and Erosion Essential Question: How does weathering and erosion shape our Earth?
![What is Weathering Weathering is the process of breaking down rocks Two What is Weathering? • Weathering is the process of breaking down rocks • Two](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-2.jpg)
What is Weathering? • Weathering is the process of breaking down rocks • Two forms of weathering: – Mechanical/Physical – Chemical
![What is Mechanical Weathering Mechanical weathering is breaking down by natural or physical What is Mechanical Weathering? • Mechanical weathering is breaking down by natural or physical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-3.jpg)
What is Mechanical Weathering? • Mechanical weathering is breaking down by natural or physical processes
![The 3 Types of Mechanical Weathering The 3 Types of Mechanical Weathering](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-4.jpg)
The 3 Types of Mechanical Weathering
![1 ICE WEDGING When water goes into fractures in rock and freezes the force 1. ICE WEDGING When water goes into fractures in rock and freezes, the force](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-5.jpg)
1. ICE WEDGING When water goes into fractures in rock and freezes, the force of expansion is great enough to break the rock into smaller pieces.
![Mount Rushmore South Dakota Bryce Canyon Utah Mount Rushmore – South Dakota Bryce Canyon – Utah](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-6.jpg)
Mount Rushmore – South Dakota Bryce Canyon – Utah
![2 Abrasion Abrasion Bighorn Antelope Mountains Canyon Arizona Wyoming Collision of rocks 2. Abrasion • Abrasion Bighorn Antelope Mountains Canyon ––Arizona Wyoming – Collision of rocks](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-7.jpg)
2. Abrasion • Abrasion Bighorn Antelope Mountains Canyon ––Arizona Wyoming – Collision of rocks – Makes rocks more spherical What causes abrasion? 1. Water 2. Wind 3. Ice 4. Gravity Elephant Rocks Park – Missouri
![Not Just Limited to Rocks Not Just Limited to Rocks…. .](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-8.jpg)
Not Just Limited to Rocks…. .
![3 Root Action Slow process When roots spread to break rock 3. Root Action Slow process When roots spread to break rock](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-9.jpg)
3. Root Action Slow process When roots spread to break rock
![](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-10.jpg)
![Close to Home Close to Home](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-11.jpg)
Close to Home
![What is Chemical Weathering Chemical weathering occurs when minerals are chemically changed causing What is Chemical Weathering? • Chemical weathering occurs when minerals are chemically changed causing](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-12.jpg)
What is Chemical Weathering? • Chemical weathering occurs when minerals are chemically changed causing them to dissolve or change to another mineral – Oxidation – Acid – Plants
![Oxidation 1 Oxidation chemical reaction with oxygen and iron rich rocks Causes rocks Oxidation 1. Oxidation - chemical reaction with oxygen and iron rich rocks. Causes rocks](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-13.jpg)
Oxidation 1. Oxidation - chemical reaction with oxygen and iron rich rocks. Causes rocks to “rust” • iron-rich rock have reddish stains from "rusting" due to iron and oxygen reacting
![](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-14.jpg)
![Close to Home Close to Home](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-15.jpg)
Close to Home
![Plant Acids Some roots and decaying plants give off acids that also dissolve Plant Acids • Some roots and decaying plants give off acids that also dissolve](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-16.jpg)
Plant Acids • Some roots and decaying plants give off acids that also dissolve minerals in rock. When these minerals dissolve, the rock is weakened. • Eventually, the rock will break into smaller pieces.
![Plants called lichens produce rock dissolving acids that can break down rock Plants – called lichens produce rock dissolving acids that can break down rock.](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-17.jpg)
Plants – called lichens produce rock dissolving acids that can break down rock.
![Acid precipitation Acid Rain Sulfur CO 2 from cars and coaloil mix with Acid precipitation (Acid Rain) Sulfur & CO 2 from cars and coal/oil mix with](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-18.jpg)
Acid precipitation (Acid Rain) Sulfur & CO 2 from cars and coal/oil mix with water to produce acidic precipitation. 1. Rain 2. Snow 3. Sleet 4. Hail
![How does the Environment affect Weathering Temperature Different temps give different type How does the Environment affect Weathering? • Temperature – Different temps give different type](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-19.jpg)
How does the Environment affect Weathering? • Temperature – Different temps give different type of weathering • Moisture – High moisture, chemical Weathering – Low moisture, mechanical
![Effects of Climate Chemical weathering is more rapid in warm wet climates Effects of Climate • Chemical weathering is more rapid in warm, wet climates. •](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-20.jpg)
Effects of Climate • Chemical weathering is more rapid in warm, wet climates. • Lack of moisture in deserts and low temperatures in polar regions slow down chemical weathering. • In cold climates, where freezing and thawing are frequent, mechanical weathering rapidly breaks down rock through the process of ice wedging.
![I T N E D Y IF P E H T O R E I T N E D Y IF P E H T O R E](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-21.jpg)
I T N E D Y IF P E H T O R E C ! ! ! S S
![1 1](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-22.jpg)
1
![1 Abrasion Mechanical 1 -Abrasion Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-23.jpg)
1 -Abrasion Mechanical
![2 2](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-24.jpg)
2
![2 Onion Skin Weathering Mechanical 2 -Onion Skin Weathering Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-25.jpg)
2 -Onion Skin Weathering Mechanical
![3 3](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-26.jpg)
3
![3 Chemical Water is wearing away the rock 3 -Chemical Water is wearing away the rock](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-27.jpg)
3 -Chemical Water is wearing away the rock
![4 4](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-28.jpg)
4
![4 Freezing and Thawing Mechanical 4 -Freezing and Thawing Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-29.jpg)
4 -Freezing and Thawing Mechanical
![5 5](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-30.jpg)
5
![5 Mechanical 5 -Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-31.jpg)
5 -Mechanical
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![6 Mechanical Chemical how 6 -Mechanical & Chemical…. how?](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-33.jpg)
6 -Mechanical & Chemical…. how?
![7 7](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-34.jpg)
7
![7 Mechanical Animal Actions 7 -Mechanical Animal Actions](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-35.jpg)
7 -Mechanical Animal Actions
![8 8](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-36.jpg)
8
![8 Mechanical with a little Chemical 8 -Mechanical with a little Chemical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-37.jpg)
8 -Mechanical with a little Chemical
![9 9](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-38.jpg)
9
![9 Chemical 9 -Chemical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-39.jpg)
9 -Chemical
![10 10](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-40.jpg)
10
![10 Mechanical but could possibly be chemical 10 - Mechanical but could possibly be chemical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-41.jpg)
10 - Mechanical but could possibly be chemical
![11 11](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-42.jpg)
11
![11 Another rusted bike 11 -Another rusted bike!](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-43.jpg)
11 -Another rusted bike!
![12 12](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-44.jpg)
12
![12 Release of Pressure Mechanical 12 -Release of Pressure Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-45.jpg)
12 -Release of Pressure Mechanical
![13 13](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-46.jpg)
13
![13 Chemical Lichen grow they release chemicals when they grow 13 -Chemical – Lichen grow, they release chemicals when they grow](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-47.jpg)
13 -Chemical – Lichen grow, they release chemicals when they grow
![14 14](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-48.jpg)
14
![14 They call this Potato Chip Rock Could mechanical or chemical 14 -They call this Potato Chip Rock Could mechanical or chemical….](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-49.jpg)
14 -They call this Potato Chip Rock Could mechanical or chemical….
![15 15](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-50.jpg)
15
![15 Freezing and Thawing Mechanical 15 -Freezing and Thawing Mechanical](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-51.jpg)
15 -Freezing and Thawing Mechanical
![16 16](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-52.jpg)
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![16 ChemicalWater 16 -Chemical-Water](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-53.jpg)
16 -Chemical-Water
![17 17](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-54.jpg)
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![17 See the different colors in the rock Chemical from oxidation 17 -See the different colors in the rock Chemical from oxidation](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-55.jpg)
17 -See the different colors in the rock Chemical from oxidation
![18 18](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-56.jpg)
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![18 Mechanical What role do humans play in weathering of Earths surface 18 -Mechanical What role do humans play in weathering of Earth’s surface?](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-57.jpg)
18 -Mechanical What role do humans play in weathering of Earth’s surface?
![What is Erosion Erosion is the removal and transport of material from one What is Erosion? • Erosion is the removal and transport of material from one](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-58.jpg)
What is Erosion? • Erosion is the removal and transport of material from one place to another
![What are the agents of Erosion There are 4 main agents of erosion What are the agents of Erosion? • There are 4 main agents of erosion:](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-59.jpg)
What are the agents of Erosion? • There are 4 main agents of erosion: – Gravity – Water – Glaciers – Wind
![What happens to the sediments When sediments are eroded moved they are not What happens to the sediments? • When sediments are eroded (moved), they are not](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-60.jpg)
What happens to the sediments? • When sediments are eroded (moved), they are not lost from Earth—they are just relocated • Deposition is when sediments are moved and deposited or “dropped off” • Weathering, erosion, and deposition act together in a cycle that wears down and builds up Earth’s surface
![How does Gravity cause Erosion A mass movement is any type of • How does Gravity cause Erosion? A mass movement is any type of](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-61.jpg)
• How does Gravity cause Erosion? A mass movement is any type of erosion that happens as gravity moves materials down slope – Landslides – Mudslides – Rock slides
![What are the different types of mass movement Landslide is the most destructive What are the different types of mass movement? • Landslide is the most destructive](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-62.jpg)
What are the different types of mass movement? • Landslide is the most destructive kind of mass movement. It is when rock and soil slide quickly down a steep slope • Mudflow is a rapid downhill movement of a mixture of water, rock, and soil. Usually occurs after heavy rains in normally dry areas.
![What are the different types of mass movement Slump is a mass of What are the different types of mass movement? • Slump is a mass of](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-63.jpg)
What are the different types of mass movement? • Slump is a mass of rock and soil suddenly slips down a slope. The difference is that the material in a slump moves in one large mass. • Creep is very slow downhill movement of rock and soil. Often a result of freezing and thawing of water in cracked layers of rock beneath the soil. It is so slow, you can hardly notice it!
![1 What is erosion 2 What type of mass movement is shown in this 1. What is erosion? 2. What type of mass movement is shown in this](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-64.jpg)
1. What is erosion? 2. What type of mass movement is shown in this illustration? 3. What are the 4 agents of erosion?
![How do Glaciers cause Erosion A glacier is a large mass of ice How do Glaciers cause Erosion? • A glacier is a large mass of ice](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-65.jpg)
How do Glaciers cause Erosion? • A glacier is a large mass of ice and snow moving on land under its own weight • As glaciers pass over land, they erode it, changing features on the surface • Glaciers then carry eroded material along and deposit it somewhere else. • There are 2 types of glaciers: Continental (covers most of a continent) and Valley Glaciers (in the valley between 2 mountains)
![](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-66.jpg)
![How do Glaciers shape the land The movement of a glacier changes the How do Glaciers shape the land? • The movement of a glacier changes the](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-67.jpg)
How do Glaciers shape the land? • The movement of a glacier changes the land beneath it • Although glaciers work slowly, they are a major force of erosion • The two process by which glaciers erode the land are plucking and abrasion
![How do Glaciers shape the land As a glacier flows over the land How do Glaciers shape the land? • As a glacier flows over the land,](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-68.jpg)
How do Glaciers shape the land? • As a glacier flows over the land, it picks up rocks in a process called plucking • Due to the glaciers extreme weight, it can break rocks apart and then the rocks freeze to the bottom of the rock carrying it with it when it moves • As rocks remain on the bottom of the glacier and it drags them across the land, abrasion occurs as it scratches the bedrock • When a glacier melts, it deposits the sediment it eroded from the land creating various landforms
![How does wind contribute to erosion Wind by itself is the weakest agent How does wind contribute to erosion? • Wind by itself is the weakest agent](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-69.jpg)
How does wind contribute to erosion? • Wind by itself is the weakest agent of erosion, however, it can be a powerful force in shaping the land areas where there are few plants to hold the soil in place • Sand dunes are mounds of sediment drifted by the wind • Dunes can be see along shore of oceans, but are common in desert regions
![1 What are two ways in which glaciers erode Earths surface 2 What is 1. What are two ways in which glaciers erode Earth’s surface? 2. What is](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-70.jpg)
1. What are two ways in which glaciers erode Earth’s surface? 2. What is the difference between a continental and a valley glacier?
![How is water an agent of Erosion Moving water is the major agent How is water an agent of Erosion? • Moving water is the major agent](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-71.jpg)
How is water an agent of Erosion? • Moving water is the major agent of erosion that has shaped Earth’s land surface • Through erosion, a river creates valleys, water falls, flood plains, and other landforms • Deposition of sediments creates landforms such as deltas and also adds soil to a river’s flood plain • A delta is sediment that are deposited where a river flows into an ocean or lake building up a landform
![How is water an agent of Erosion Ground water is another agent of How is water an agent of Erosion? • Ground water is another agent of](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-72.jpg)
How is water an agent of Erosion? • Ground water is another agent of erosion through the process of chemical weathering • Ground water is water that fills the cracks and spaces in underground soil and rock layers • Ground water containing carbonic acid can break down limestone creating caves or caverns. • Stalactites and stalagmites are also formed from the deposit of calcite due to chemical weathering
![How do waves contribute to Erosion The energy in waves comes from wind How do waves contribute to Erosion? • The energy in waves comes from wind](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-73.jpg)
How do waves contribute to Erosion? • The energy in waves comes from wind that blows across the water’s surface • Waves shape the coast through erosion by breaking down rock and transporting sand other sediment • Waves shape a coast when they deposit sediment, forming coastal features such as beaches, sand bars, and sea arches
![1 What is the source of the energy in ocean waves 2 What process 1. What is the source of the energy in ocean waves? 2. What process](https://slidetodoc.com/presentation_image_h/f4d8b140d38c1e1dadc2b90292d1532a/image-74.jpg)
1. What is the source of the energy in ocean waves? 2. What process is the cause of ground water erosion (mechanical or chemical)?
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