Weathering.

Slides:

Advertisements

Similar presentations

Mechanical and Chemical. _ jpg

Advertisements

5.1 Weathering.

Weathering, Erosion, & Soil

Chapter 5.1 Weathering.

Weathering The breakdown of the materials of Earth’s crust into smaller pieces. It can happen through physical or chemical means and through natural and.

The Earth’s Changing Surface

Chapter 5.1 Weathering.

WEATHERING & EROSION.

Weathering and Erosion

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

Weathering Pg. 69.

Weathering Weathering

Weathering Topic 9 Regents Earth Science. Weathering  The break down of rock material as a result of chemical and/or physical action.

World Geography Unit 1: Physical Geography Land and Water Forms. Physical and Chemical Weathering.

Weathering The breakdown of the materials of Earth’s crust into smaller pieces. It can happen through physical or chemical means and through natural and.

Weathering. What is Weathering? The physical, chemical, and biological processes that break down rocks and minerals, turning large particles into smaller.

Weathering - the breakdown of rock and minerals. Erosion - the movement of these weathered materials. Physical weathering - the breakdown of rock and minerals.

Aim: What is weathering ? I. Weathering – the breakup of rock due to exposure to the atmosphere. A. Erosion – is the removal and transport of earth materials.

Mechanical and Chemical. _ jpg

Weathering MechanicalandChemical. What Caused This?

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.

Weathering MechanicalandChemical. What Caused This?

Earth Science 5.1 Weathering

Weathering The process by which rock is broken down into smaller pieces May be physical or mechanical (they mean the same thing) May be chemical May be.

Learning Outcomes: 1.To be able to understand the terms Weathering and Erosion 2.To be able to understand and describe the different types of weathering.

Science: 6.10B Science: 6.10B Rocks and How They Form.

Weathering.  Earth’s surface is always changing. There are internal processes like mountain building and volcanic activity.  There are also external.

 Weathering is the process by which rocks break down and change  Mechanical  Chemical.

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.

Unit 1 Lesson 2 Weathering

Mechanical and Chemical

Find and photograph 6 examples

Rock Cycle Unit 3 – What is weathering

Weathering is the physical and chemical breaking down of rocks (the lithosphere) into smaller pieces or particles by wind, water, ice, plants, animals,

Weathering and Erosion

Chapter 12 Weathering The breakup of rock due to exposure to processes on the Earth’s surface.

Weathering and Erosion

Chapter 7 Section 1 Notes.

Weathering - the breakdown of rock and minerals.

Weathering Chapter 5.

Weathering Chapter 5.1.

Weathering and Erosion

Weathering and Erosion

Chapter 7 – Weathering and Erosion

Chapter 5 Weathering, Soils, & Mass Movements

Rock is physically broken into smaller pieces

Chapter 5 Weathering, Soils, & Mass Movements

Weathering Ch. 12.

Mechanical and Chemical

Mechanical and Chemical

Weathering and Erosion

Weathering Chapter 5.1.

Chapter 5.1 Weathering.

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.

Unit 1 Lesson 2 Weathering

Mechanical and Chemical

Chapter 5 Weathering, Soils, & Mass Movements

Unit 2 Lesson 1 Weathering

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

Mechanical and Chemical

Weathering Unit 4: Lesson 2

Unit 1 Lesson 2 Weathering

Mechanical and Chemical

Mechanical and Chemical

Unit 1 Lesson 2 Weathering

Presentation transcript:

Weathering

Weathering Weathering is the process by which rocks break down and change Mechanical Chemical

Mechanical Weathering Mechanical(Physical) Weathering is the process where rocks break into smaller pieces with no change in their composition Caused by: Cold temperatures Tectonic Processes Biological Activity

Mechanical Weathering Frost Wedging-The repeated thawing and freezing of water in the cracks of rocks Water expands when frozen, chips away parts of the rock

Unloading Unloading occurs when igneous rock becomes exposed through uplift and erosion Exfoliation-Occurs when pieces of the uplifted rock are weathered and chipped away

Biological Activity Organisms can cause Mechanical Weathering Plant roots growing into cracks in rocks Burrowing animals moving rocks Decayed animals can produce acids (Chemical Weathering)

Chemical Weathering Chemical Weathering- Rocks undergo changes in their composition Caused by: Water Oxygen Carbon Dioxide Acids

Hydrolysis/Oxidation Hydrolysis-The reaction of water with other substances Oxidation-The reaction of oxygen with other substances

Water Water causes Chemical Weathering by absorbing gases from the atmosphere and ground CO2 +Water  Carbonic Acid Dissolves Rocks/Minerals Stalactites/Stalagmites

Differential Weathering Differential weathering is when rocks weather at different rates Caused by different mineral compositions Sedimentary rocks weather more easily than igneous rocks

Statue of liberty The statue of liberty is made of copper which is generally a brownish color Has been affected by chemical weathering Water reacting with the copper Sulfuric acid formed by pollution (debatable)