Weathering and Erosion

Slides:

Advertisements

Similar presentations

Natural Agents of Change

Advertisements

Agenda 2/4 Warm – Up: What processes shape the surface of the earth?

5.1 Weathering.

Weathering and Erosion

Weathering and Erosion

Weatheri ng Weathering is the physical and chemical breakdown of rocks at the Earth’s surface. The pieces or particles of rock (large and small) that are.

Weathering, Erosion, & Soil

Weathering and The Rock Cycle

Weathering & Erosion.

8-1 Rocks and Weathering How do rocks and weathering affect Earth’s surface? What are the causes of mechanical weathering ands chemical weathering? What.

WEATHERING & EROSION.

Guided Notes about Weathering

Weathering and Soil Formation

Weathering and Erosion

Key Terms: weathering, mechanical weathering, chemical weathering, sediment, erosion, deposition, compaction, cementation.

Weathering SWBAT distinguish between weathering and erosion; identify the variables that affect the rate of weathering.

UNIT SEVEN: Earth’s Water  Chapter 21 Water and Solutions  Chapter 22 Water Systems  Chapter 23 How Water Shapes the Land.

Section 4: Weathering and Erosion

Weathering Pg. 69.

Weathering and soil formation – section 2-1 Rocks and Weathering

Weathering Weathering

Chapter 7- Weathering, Erosion and Soil

Jeopardy MineralsRocks The Rock Cycle Weathering Erosion Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy.

Chapter 8 At end of period you will get a class work grade for attentiveness and note completion…and you will have a QUIZ on the notes.

Mechanical and Chemical. _ jpg

JOURNAL #1 List two things you know about any of the following topics:

Chapters 7 - Erosion & Weathering Lecture notes. Erosion- removal and transport of weathered materials.

Chapter Weathering and Soil. What is weathering? Weathering is process of breaking down and changing of rock at or near Earth’s surface. The two.

Weathering The natural breaking down of rocks and other materials on the Earth’s surface. A slow continuous process that affects all substances exposed.

Chapters 4 & 5 Weathering and Erosion Weathering Weathering is the breaking down of rocks and other materials 2 types of weathering –Mechanical –Chemical.

Rock Cycle A model that shows how rocks are created and changed from one type to another.

Essential Question How does weathering and erosion impact earth’s surface features?

1 9.1 Weathering. 2 Describe how potholes form. Describe how water flows down into cracks that form of potholes.

Earth & Space Science Chapter 7 Weathering, Erosion, and Soil.

Weathering, Erosion, and Deposition

External Forces Making mountains into molehills. Rock types  Igneous- volcanic in origin; cooled lava or magma.  Sedimentary- layers of sand, silt &

 Processes driven by earth’s interior heat are responsible for igneous and metamorphic  Weathering and erosion are powered by energy from sun to produce.

Science 7: Unit E: Planet Earth Topic 3 - Erosion.

CLASSIFICATION OF ROCKS 8.E.2.2. Warm up  What does erosion do?  A. changes rock chemically  B. changes rock particles into different rock  C. it.

Forces that Shape the Earth Chapter 5, lesson 4.  Weathering: the breaking down of rock into smaller pieces by natural process  Ice  Moving Water 

Weathering The wearing down of stuff. Weathering types The breaking down and changing of rocks at or near the Earth’s surface Weathering comes in two.

Weathering. Weathering Process that breaks down and changes rock at or near earth’s surface Process that breaks down and changes rock at or near earth’s.

What breaks down rocks? 1. Erosion: process of wearing down and carrying away rocks 2. Weathering: breakdown of rock material by.

The Rock Cycle.

Weathering Weathering is the physical and chemical breakdown of rocks at the Earth’s surface. The pieces or particles of rock (large and small) that are.

Chapter Weathering, Erosion, and Soil

Weathering and Erosion

Chapter 7 Section 1 Notes.

Weathering and Erosion

Weathering All of the processes that break rock into smaller pieces

Physical Weathering How does physical weathering affect rocks?

Properties and Characteristics

Weathering and Erosion

Chapter 7 – Weathering and Erosion

Rocks and the Rock Cycle

Weathering and Erosion

Weathering and Erosion

Title: 7.1 Weathering (Mechanical Weathering.) Page #:48 Date: 1/2/13

Rocks and Weathering.

External Forces Affecting Earth

Bell Ringer What processes form igneous rocks? Sedimentary? Metamorphic? I will hand back quizzes at the end of class. Please remind me! Make up quizzes.

Weathering and Erosion

Forces That Shape the Earth’s Surface

Bluff Soil Erosion Wild Card Q $100 Q $100 Q $100 Q $100 Q $100 Q $200

Weathering breaks down materials on or near Earth’s surface.

Weathering and Erosion

Weathering and Erosion

Weathering and Erosion

Presentation transcript:

Weathering and Erosion How does the Earth Change?

Weathering The process in which materials on or near the Earth’s surface break down and change Types of Weathering: Mechanical (Physical) Weathering Chemical Weathering

Mechanical Weathering Process by which rocks break down into smaller pieces DOES NOT involve a change in composition

Mechanical Weathering Frost wedging Freeze - thaw cycle of water in cracks of rocks Pressure Pressure causes curved cracks in rock The stripping away of rock layers is known as exfoliation Another example is tree roots pushing through rock

Chemical Weathering Water, oxygen, CO2, acid precipitation Process by which rocks and minerals undergo changes in their composition Agents of chemical weathering: Water, oxygen, CO2, acid precipitation

Rates of Weathering Can be affected by: Climate Warm, humid areas weather faster Rock Type and Composition Certain rocks weather easier Surface Area Amount of area exposed

Erosion Removal of weathered rock and soil from its original location Agents of erosion: Gravity Moving water Glaciers Wind

Gravity Force of gravity tends to pull all materials down slope

Moving Water Rivers and streams carry sediments Waves against shorelines cause erosion of the shoreline

Glacial Erosion Glaciers can carry huge rocks and debris Leave U-shaped depressions called moraines

Wind Erosion Wind can pick up and move fine dry particles

What types of weathering and erosion can be found in Paramus?? EXAMPLES?

5th Possible Agent of Erosion?? Can Humans and other living creatures be an agent of erosion??

How does the Earth change? Rock Cycle How does the Earth change?

Rock Cycle Continuous, dynamic set of processes by which rocks are changed into other types of rocks Any rock can be changed into any other type of rock

Rock Cycle Igneous Rocks Magma Sedimentary Rocks Metamorphic Sediments

Rock Cycle Sediments Sedimentary Rocks Metamorphic Igneous Rocks Rocks Melting Melting Melting Magma

Rock Cycle Sediments Sedimentary Rocks Metamorphic Igneous Rocks Rocks Melting Melting Melting Cooling and Crystallization Magma

Rock Cycle Sediments Sedimentary Rocks Heat and Pressure Metamorphic Rocks Igneous Rocks Melting Melting Melting Cooling and Crystallization Magma

Rock Cycle Sediments Sedimentary Rocks Heat and Pressure Weathering & Erosion W & E Heat and Pressure Metamorphic Rocks Igneous Rocks Melting Melting Melting Cooling and Crystallization Magma

Rock Cycle Sediments Lithification Sedimentary Rocks Heat and Pressure Weathering & Erosion W & E Heat and Pressure Metamorphic Rocks Igneous Rocks Melting Melting Melting Cooling and Crystallization Magma