L.O.Students will identify the process of erosion and 4- Agents of Erosion STANDARD: S3 - CONCEPT OF EARTH AND SPACE Understanding the structure of the Earth

DO NOW Use book pages Write down the names of 4- agents of erosion. Understanding the structure of the Earth

Erosion By Gravity F Mass movement F Creep F Slump F Rock slides F Mud flows F Mass movement F Creep F Slump F Rock slides F Mud flows Understanding the structure of the Earth

Erosion by Ice Glacial Erosion Glacial Deposition Understanding the structure of the Earth’s Surface Click image to view movie.

Erosion by Wind RDeflation RAbrasion RDeflation RAbrasion Understanding the structure of the Earth

Erosion By Water  Runoff  Sheet flow  Rills and gullies  Streams  Runoff  Sheet flow  Rills and gullies  Streams Understanding the structure of the Earth

Water Water that flows over Earth's surface is called runoff. Runoff is an important agent of erosion. Erosion of Earth’s Surface 2 2 The more speed water has, the more material it can carry with it.

Sheet Flow When water flows downhill as a thin sheet, it is called sheet flow. This thin sheet of water can carry loose sediment grains with it, causing erosion of the land. Erosion of Earth’s Surface 2 2 This erosion is called sheet erosion.

Rills and Gullies As runoff continues to flow through the rills, more sediment erodes and the channel widens and deepens. When the channels get to be about 0.5m across, they are called gullies. Erosion of Earth’s Surface 2 2

Streams Gullies often connect to stream channels. Most streams have water flowing through them continually, but some have water only during part of the year. Erosion of Earth’s Surface 2 2

Streams As streams move out of the mountains and onto flatter land, they begin to flow more smoothly. The streams might snake back and forth across their valley, eroding and depositing sediments along their sides. Erosion of Earth’s Surface Click image to view movie.

Class Work  Finish your worksheet

HW  Two- Three pages report Due Nov,1st  Topic: Weathering & Erosion  Report must be done in the form of newsletter format.  Open Microsoft Word  Go to file and click on the Project Gallery  Click on Newsletters and choose anyone of these.  Two- Three pages report Due Nov,1st  Topic: Weathering & Erosion  Report must be done in the form of newsletter format.  Open Microsoft Word  Go to file and click on the Project Gallery  Click on Newsletters and choose anyone of these.

HW (continued)  Page one Describe Weathering,two kinds of weathering and causes of these weathering and how these effects our earth.  Page 2 Describe Erosion,4 kinds of erosion and causes of these erosion and how these effects our earth.  Page 3 Describe different ways how can we prevent and reduce the process of weathering and erosion.You must have examples all over with pictures.  Page one Describe Weathering,two kinds of weathering and causes of these weathering and how these effects our earth.  Page 2 Describe Erosion,4 kinds of erosion and causes of these erosion and how these effects our earth.  Page 3 Describe different ways how can we prevent and reduce the process of weathering and erosion.You must have examples all over with pictures.