Have you ever wondered why Earth goes through massive climate swings, from freezing ice ages to warmer periods like today?

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 ...

For more than a century, visitors to a remote California lakebed have stared at long, ruler-straight tracks etched into the mud and wondered how heavy boulders could apparently glide on their own. The ...