I was surprised to notice that, while we were playing with the flume, cross bedding had formed. The first layer of bedding was already there at the start of the lab. The next two layers formed once we changed the velocity of flow, causing the water levels to sink and rise. I thought it was fascinating to watch the erosion and deposition, but it was also really interesting to see how coarse and fine grains sorted themselves. For example, on the topmost layer, the darker bands are fine sediments, while the light layers are coarse sediments. It was interesting to think how this process would apply in nature, especially in eolian environments where dunes form.

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