On Monday students observed our erosion student inquiry outside. On Friday we had deposited soil on a steep slope, a flat plain, a flat plain with crop residue on top, and underneath a plant. Already we observed that the steep slope had more erosion from the rain and thunderstorm on Friday and Saturday. We also did a lab involving chalk and vinegar to show chemical weathering. Student saw the vinegar start to dissolve the chalk/limestone right in front of their eyes.
On Tuesday we will watch various short videos on erosion such as landslides, mudslides, sinkholes, and tsunamis. We will examine the causes of each of these and if they could have been prevented or not. On Wednesday we will continue to review for the Weathering and Erosion test on Thursday. On Friday we will begin to examine human causes of erosion such as deforestation, land clearing, farming, and dams.
Homework for the week:
Monday: finish the review sheet (if not already done), study for the Weathering and Erosion test on Thursday
Tuesday and Wednesday night: study for the test on Thursday
Thursday night: Look at images of deforestation, the Hoover dam, the Three Gorges Dam, windbreaks, terraces, and slash and burn to prepare for Friday's lesson. Students will receive a bonus grade for printing them out. We have already enjoyed many other interesting pictures about landforms, weathering, erosion, and deposition! They are currently put on our wall for all to see.
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