Introduction Have you ever visited a canyon or cave and wondered how those formations came to be? Or observed smooth stones by a river or beach? These results are due to a process called weathering.

Suggested Citation: "2 Physical Characteristics of Fractured Rock Controlling Flow and Transport." National Academies of Sciences, Engineering, and Medicine. 2020. Characterization, Modeling, ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why don’t rocks burn? – Luke, age 4, New Market, ...