Weathering

1. Read the comic below to find out about a problem Mr. Rodent is having. Then, read the article below so you can explain what is happening to his burrow. 2. Now, click on the Super Heros! link to watch the video. After watching the video, read the article about Weathering. Video [|Super Heros!] Article [|Weathering] Animation of Weathering [|Weathering Animation]

3. After you have viewed the video and read about Weathering, click on the comic strip link to create a comic of your own about Weathering. [|Comic Strip]

4. Two types of Weathering: Physical and Chemical Weathering You are to read pages 39-43 in order to obtain information about tge two types of Weathering. Use your and the following code: cae-0618 after clicking on the following link: [|Online Textbook] 5 Complete the following Cause and Effect Graphic Organizer in your journal using information from your reading.

6. Now we will be conducting an investigation on Weathering. Click on the link to obtain you lab sheet. Weathering Inquiry

7. Next, you will need to create a Venn Diagram with titles Weathering and Erosion to compare and contrast the two concepts. The Venn can be made like the following foldable: 8.We will be taking a weathering walk to identify the two types of weathering: Mechanical and Chemical. Click on the link to obtain your observation sheet. Weathering Walk

9. Great Site for Information on Weathering and Erosion: [|WOW!!]

10. Assessment for Weathering :

Background: Weathering refers to the group of destructive forces that change the physical and chemical character of rock near the earth’s surface. Mechanical weathering (or physical disintegration) is the breaking down of rocks into smaller pieces. The change in the rock is physical with little or no chemical change. Chemical weathering is the decomposition of rock from exposure to water and atmospheric gases (principally carbon dioxide, oxygen, and water vapor). As rock is decomposed by these agents, new chemical compounds form. Examples of mechanical weathering include: frost action, abrasion, and pressure release. Examples of chemical weathering include: rusting, acid breakdown, and solution weathering.

Erosion is the picking up or physical removal of rock particles by an agent such as streams or glaciers. Weathering helps break down a solid rock into loose particles that are easily eroded. Most eroded rock particles are at least partially weathered, but rock can be eroded before it has weathered at all. A stream can erode weathered or unweathered rock fragments.

Weathering Test