Indiana University
Indiana University Bloomington: Sedimentary Structures
This resource explains the depositional processes that occur in sedimentary rock formation to produce stratification, cross-bedding, graded bedding, rippled effects, and solidified mud cracks. Includes photographs of each type.
Idaho State University
Idaho State University: Environmental Geology: Rivers and Flooding
Recognize what physical characteristics create rivers on Earth's surface. Identify where floods occur and what makes them happen.
US Geological Survey
U.s. Geological Survey: Floods and Flood Plains
This site provides a detailed report on floods and flood plains. Facts about weather patterns, zoning restrictions, and dams and levees are given along with diagrams and photos.
PBS
Pbs Newshour Extra: What Is a Flood Plain?
Students will view flooding situations and hypothesize how much risk they are in their homes and schools. They will also estimate the expense of living through a flood and compare the price to the cost of repairing damage due to flooding.
CK-12 Foundation
Ck 12: Earth Science: Landforms From Stream Erosion and Deposition
[Free Registration/Login may be required to access all resource tools.] Explains how and where rivers erode and deposit sediments, including particles and dissolved ions.