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 ...

Stretching like a colossal spine along western South America, the Andes stand as the world's longest mountain range. It spans ...

Ancient, expansive tracts of continental crust called cratons have helped keep Earth's continents stable for billions of years, even as landmasses shift, mountains rise and oceans form. A new ...

Rocks and minerals are closely related, but there are fundamental differences between the two. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

A remote outcrop in Canada harbors rocks that are at least 4.16 billion years old, researchers report June 26 in Science. If true, these rocks would be the oldest known on Earth and the first to date ...

These ancient metamorphic rocks called gneisses, found on the Arctic Coast, represent the roots of the continents now exposed at the surface. The scientists said sedimentary rocks interlayered in ...