SIOUX CITY (KTIV) - Gather your supplies! In this episode we will use everyday materials to create a model of the rock cycle and explore the three different categories of rock. Sedimentary rocks are ...

Nitrogen gets around on Earth. The element moves between the atmosphere, oceans, land, crust, and mantle of the planet. But models of this nitrogen cycle are in need of a major update, a group of ...

Sedimentary rocks are made up of pieces of older rocks (igneous, metamorphic, and sedimentary) and organic remains (shells, bone, etc.). When rocks break apart from erosion they are transported by ...