1. Summarize the role of living things in the formation of fertile soil. 2. The next time it rains, watch runoff move down a slope. Can you see streams forming and merging to make bigger ones? Can you...

1. Summarize the role of living things in the formation of fertile soil.

2. The next time it rains, watch runoff move down a slope. Can you see streams forming and merging to make bigger ones? Can you see erosion occurring? Sketch the streams you see, and make notes about the stream properties you observe.