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 ...

The rocks on Earth are constantly changing due to many different processes. There are three main types of rock, with rocks changing between each type over millions of years. This rock recycling is a ...

The oldest blueschists—metamorphic rocks formed during subduction—are of Neoproterozoic age 1, and 0.7–0.8 billion years old. Yet, subduction of oceanic crust to mantle depths is thought to have ...

Rolling dice is an excellent way to emphasize that the rock cycle is deceptively named. Equally importantly, what felt like a failed lesson in volcanoes to me was not noticably catastrophic for my ...