Your SlideShare is downloading. ×
0
External Forces Shaping the Eath
<ul><li>Weathering </li></ul><ul><li>Physical and chemical processes that change the characteristics of rock on or near th...
<ul><li>Chemical Weathering </li></ul><ul><ul><li>Rock is changed into new substance </li></ul></ul><ul><ul><li>Rust, acid...
<ul><li>Erosion </li></ul><ul><li>Weathered material moved by action of wind, water, ice, or gravity </li></ul><ul><li>3 t...
Nile Delta Mississippi Delta
<ul><li>Wind erosion </li></ul><ul><ul><li>Powerful winds erode soil and blow them hither and thither. </li></ul></ul><ul>...
Iraq
<ul><li>Glacial erosion </li></ul><ul><ul><li>Large masses of ice eroding the landscape – glaciation </li></ul></ul><ul><l...
Upcoming SlideShare
Loading in...5
×

2.4 External Forces Shaping the Earth

6,398

Published on

Wind and rain.

Published in: Education
2 Comments
1 Like
Statistics
Notes
  • I like scinece but like.... i need my awnser;’s to my Homework, so.. where can i find it because i can find it anywhere??:(!
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • I like science but like... I Need my Awser's st my Homework, where can i find it.. because i can't find it anywhere??:(
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
No Downloads
Views
Total Views
6,398
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
82
Comments
2
Likes
1
Embeds 0
No embeds

No notes for slide

Transcript of "2.4 External Forces Shaping the Earth"

  1. 1. External Forces Shaping the Eath
  2. 2. <ul><li>Weathering </li></ul><ul><li>Physical and chemical processes that change the characteristics of rock on or near the Earth’s surface </li></ul><ul><li>Breaks rock down into smaller pieces called sediment (mud, sand, or silt) </li></ul><ul><li>2 types </li></ul><ul><li>Mechanical Weathering </li></ul><ul><ul><li>The composition of the rock stays the same, it just gets broken down into smaller bits </li></ul></ul>
  3. 3. <ul><li>Chemical Weathering </li></ul><ul><ul><li>Rock is changed into new substance </li></ul></ul><ul><ul><li>Rust, acid rain, etc. </li></ul></ul>
  4. 4. <ul><li>Erosion </li></ul><ul><li>Weathered material moved by action of wind, water, ice, or gravity </li></ul><ul><li>3 types </li></ul><ul><li>Water erosion </li></ul><ul><ul><li>Water strips away material </li></ul></ul><ul><ul><li>This can happen in rivers and streams by the current eroding the banks and on coasts by waves eroding the shores </li></ul></ul><ul><ul><li>Eroded material becomes sediment </li></ul></ul><ul><ul><ul><li>In rivers, sediment is carried downstream and deposited at its mouth and forms a delta </li></ul></ul></ul>
  5. 5. Nile Delta Mississippi Delta
  6. 6. <ul><li>Wind erosion </li></ul><ul><ul><li>Powerful winds erode soil and blow them hither and thither. </li></ul></ul><ul><ul><li>May form new landforms, such as dunes </li></ul></ul><ul><ul><li>May also just get in your nose and ears in Lubbock </li></ul></ul>
  7. 7. Iraq
  8. 8. <ul><li>Glacial erosion </li></ul><ul><ul><li>Large masses of ice eroding the landscape – glaciation </li></ul></ul><ul><li>Building soil </li></ul><ul><li>Weathering and erosion are part of the cycle of dirt (my term) </li></ul><ul><li>Soil gets stripped away and deposited </li></ul><ul><li>Soil Factors </li></ul><ul><ul><li>See p. 45 in textbook </li></ul></ul>
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×