o Description of difference between weathering and erosion.
o Graphical representation of the following:
· mechanical weathering
· chemical weathering
· water erosion
· wind erosion
· ice erosion
· Include a References slide for the graphical images you use.
I have started the ppt but i still need help with the info and i need suggestions on what to write in each slide in the speaker notes.
http://en.wikipedia.org/wiki/Weathering_processes
Read the first two sentences VERY CAREFULLY.
Read through the rest of the article and check out all the links provided in the See Also section at the bottom.
Then do the same with this:
http://en.wikipedia.org/wiki/Erosion
Title: Weathering and Erosion
Slide 1: Introduction
- Title: Weathering and Erosion
- Briefly introduce the topic of weathering and erosion
- Include an engaging slide design to capture audience attention (e.g., an image of a landscape undergoing weathering and erosion)
Slide 2: Weathering Overview
- Title: Weathering
- Briefly define weathering as the process of breaking down rocks and minerals on Earth's surface
- Speaker notes: Describe the main types of weathering (mechanical and chemical) and their differences
Slide 3: Mechanical Weathering
- Title: Mechanical Weathering
- Explain mechanical weathering as the physical breakdown of rocks into smaller pieces without any change in chemical composition
- Speaker notes: Provide examples of mechanical weathering processes such as freeze-thaw (frost) weathering, root wedging, and abrasion
Slide 4: Chemical Weathering
- Title: Chemical Weathering
- Describe chemical weathering as the alteration of rocks through chemical reactions that change their composition
- Speaker notes: Explain various chemical weathering processes, including oxidation, hydrolysis, and carbonation
Slide 5: Water Erosion
- Title: Water Erosion
- Introduce water erosion as the transportation of weathered materials by flowing water
- Speaker notes: Discuss the effects of water erosion, such as the formation of river valleys, canyons, and floodplains
Slide 6: Wind Erosion
- Title: Wind Erosion
- Explain wind erosion as the movement of small particles through the force of wind
- Speaker notes: Discuss the impact of wind erosion on landscapes, including the formation of sand dunes and desert pavement
Slide 7: Ice Erosion
- Title: Ice Erosion
- Describe ice erosion as the wearing away of landforms by glaciers and ice sheets
- Speaker notes: Discuss the processes of glacial erosion, such as plucking and abrasion, and their effects on the landscape (e.g., U-shaped valleys and fjords)
Slide 8: Graphical Representation of Weathering and Erosion Types
- Title: Graphical Representation
- Display visual representations of mechanical weathering, chemical weathering, water erosion, wind erosion, and ice erosion
- Speaker notes: Explain each image, relating it to the corresponding type of weathering or erosion, and mention the source of the images (e.g., Figures 1-5)
Slide 9: References
- Title: References
- Include a reference slide to acknowledge the sources of the graphical images used in the presentation
- Speaker notes: Provide a brief description of each image source, including the author, publication, or website, to give credit to the original creators
Slide 10: Conclusion
- Title: Conclusion
- Summarize the key points from the presentation, emphasizing the differences between weathering and erosion
- Speaker notes: Encourage the audience to consider the significance of weathering and erosion in shaping Earth's landscapes and ecosystems
Remember, the speaker notes should provide additional information and explanations to support the content on each slide. Use concise language and bullet points to convey the main ideas effectively.