Name:_______________________________________ Period:_______ Earth Science Mr. Sturges MP 3 - Erosion and Weathering Project OBJECTIVE: Show examples of weathering and erosion in your surroundings o Determine the causes of weathering o Develop ways of preventing erosion Due Date: FRIDAY, January 13, 2012 BACKGROUND/IMPORTANT TERMS: The Earth’s crust is constantly being reshaped by constructive and destructive forces. Over time, weathering due to chemical action (dissolving, oxidation, acid rain, etc.) and mechanical action (root action, sand blasting, frost/ice wedging, etc.) breaks huge slabs of solid rock into small pieces called sediments. The sediments are moved to a new location through the process of erosion. These sediments settle out in a new location through the process of deposition. These deposits can be turned into sedimentary rocks through compaction and cementation. Agents of erosion include currents of air or water and glacial movement. PROCEDURE: 1. Take a tour of the school grounds, a local park, cemetery or your neighborhood to find evidence of weathering and erosion. 2. Take pictures with a film or digital camera or create color drawings which illustrate weathering and erosion in action. 3. Each photograph or drawing must be clearly labeled, giving the exact street location and explaining what it shows (Note: You cannot just “cut and paste” pictures from the Web!). Examples of weathering and erosion include but are not limited to: Rock that has been cracked due to frost wedging Rock that has been cracked due to tree roots Rock with layers that are peeling or breaking Lichens growing on a rock Rock that is “rusting” or oxidizing (don't confuse lichen with rust) Rock that has been worn due to salt water or acid rain exposure Rocks smoothed by running water. Glacial erratics Glacial morain deposits of unsorted sediments Running water making sorted sediment deposits 4. Make a report or wall poster showing: a) 5 (Five)) examples of weathering and erosion shown by the clearly labeled illustrations, giving the exact street location, explaining what the type of weathering it shows and at least one way to stop, slow down or repair each of the examples of weathering or erosion you have chosen. If it is not necessary to remedy the weathering or erosion, explain why. b) Report or wall poster must have your name and class period clearly printed in ink on the front. Grading Rubric: Points: Examples Content Location Presentation 1 5 or more examples of weathering or erosion Weathering and erosion are correctly identified Four locations are identified Presentation has no misspellings or grammatical errors. Connections 5 Suggestions 3/4 1/2 1/4 4 examples of weathering or erosion 3 examples of weathering or erosion 1-2 examples of weathering or erosion 80% of the examples are correct 60% of the examples are correct Weathering and/or erosion is not identified Three locations are identified Presentation has no more than two misspellings and/or grammatical errors 4 Suggestions Two locations are identified Presentation had three misspellings and/or grammatical errors One location is identified Student’s presentation had four or more spelling errors and/or grammatical errors 1-2 Suggestions 3 Suggestions (Section 4B above) Project Points total = _____________ (100 points max) Total