Expert Film: Scientist Mike Linley shows us some different types of rock and what they are used for.

Dive into the fascinating world of rocks as we explore the three main types—igneous, sedimentary, and metamorphic—and discover how they form from volcanic activity, layered sediments, and intense heat and pressure. Learn about real-world examples like lava, limestone, and precious minerals, plus a rare meteorite, to understand Earth's geological diversity and history.