The purpose of this activity is to conduct a basic measure of the make-up of a watercourses' riverbed. By determining the size and shape of bedload (rocks/sand/gravel and mud potentially found in the bed of a watercourse) it is possible to understand more about the weathering and erosion in the river basin. This illustrates how soil erosion is impacting upon the flow of the river and subsequent deposition of sand in local reservoirs.
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