SIOUX CITY (KTIV) - Gather your supplies! This episode is about erosion and weathering. We will use sand and rocks to simulate what happens after a river flood. Water is powerful, it can grind down ...

The Earth's land surface is dominated by sloping landscapes. Every year, soil erosion laterally distributes on the order of 75 Gt of topsoil (Berhe et al. 2007). The coupled biogeochemical cycles of ...