Rock Types - Geological Formations

The video tutorial explains the formation and characteristics of different rock types: sedimentary, igneous, and metamorphic. It discusses how mineral types, grain sizes, and formation processes affect rock properties. Sedimentary rocks form from compacted layers of particles, sometimes containing fossils. Igneous rocks form from cooled magma, with crystal size varying by cooling speed. Metamorphic rocks result from heat and pressure altering existing rocks. The rock cycle describes the continuous transformation and movement of rocks on Earth.

Explain the process that leads to the formation of metamorphic rocks.

What happens to rocks over time in the Earth's rock cycle?