Heat and/or pressure will cause the elements in the original rock to react and re-form. Metamorphic rocks are highly resistant to erosion and are often used in building materials.

Bits of organic matter, particularly dead plants, also are combustible and allow the rocks to burn. The last group of rocks is called metamorphic, because these rocks form when a lot of heat and ...

Think of it as recycled rock that has been pushed together to form a new material. Metamorphic rocks are also formed because of change in their environment - they are created by great heat or ...

What FACTS ABOUT ROCKS do you know? They are abundant on earth, and yet little is known about them. These facts will increase your knowledge of the rocks.

The last group of rocks is called metamorphic, because these rocks form when a lot of heat and pressure change existing rocks into new types without melting or burning them. “Metamorphosis ...