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Erosion?
What's the difference between wind erosion and water erosion? Perform an experiment to study the effects of air on soil, as well as water and soil, and how effective it can be to place rocks on the soil.
American Museum of Natural History
Finding Fossils
How does one go about finding fossils? Find out with an informative webpage that looks at the digging process, showcases rocks and common fossils, helpful tips, and a list of archeological do's and don'ts.