Scientifically speaking, the term “crystal” refers to any solid that has an ordered chemical structure. This means that its parts are arranged in a precisely ordered pattern, like bricks in a wall.

While many rocks don’t burn, some of them do. It depends on what the rocks are made of – and that’s related to how they were formed. Rocks that burn when they get heated up are combusting. This means ...

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 ...