weathering erosion and deposition
Download
Skip this Video
Download Presentation
Weathering,Erosion and Deposition

Loading in 2 Seconds...

play fullscreen
1 / 6

Weathering,Erosion and Deposition - PowerPoint PPT Presentation


  • 80 Views
  • Uploaded on

Weathering,Erosion and Deposition. Science Grade 7. Weathering. Is the breaking of rock into smaller and smaller pieces. Plants: the roots get into the cracks and make the cracks larger as it grows. Mechanical Weathering. Rocks broken down by a physical process

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Weathering,Erosion and Deposition' - tolla


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
weathering
Weathering

Is the breaking of rock into smaller and smaller pieces

mechanical weathering

Plants: the roots get into the cracks and make the cracks larger as it grows

MechanicalWeathering

Rocks broken down by a physical process

Chemical make up of the rock stays the same

Animals: dig and burrow making cracks bigger

Ice Wedging: water gets into the cracks, freezes and expands the crack

chemical weathering

Natural Acids: water mixes with carbon dioxide and makes carbonic acid which makes calcite dissolve

Chemical Weathering

Rocks are changed into different minerals

Plant Acids: roots and decaying plants give off acids that dissolve rocks

Oxidation: metal exposed to oxygen and water for a long time, forms rust

erosion
Soil is moved from one place to anotherErosion

Agriculture – plowing loosens the soil

Forest harvesting – removes the roots that hold soil in place

Over grazing of animals – they eat the plants that hold the soil down

Urban construction – removal of trees and plants that hold soil

Gravity, Wind and Water

Glaciers

deposition
Deposition

The state of being deposited

ad