Rocks divided into 3 groups: the Igneous rock, sedimentary rock, and (a)   rock.

The core, mantle, and (a)   are one giant rock recycling machine.

“Ignis” from Latin word (a)   .

(a)   Igneous Rocks form when magma hardens beneath Earth’s surface.

(a)   rocks are formed from lava that flows on the surface of the Earth and other planets and then cools and solidifies.

(a)   Igneous Rocks form when lava hardens on the surface of the Earth

(a)   rocks are formed when magma cools and solidifies underground.

(a)   the gas pockets on rocks.

Types of rock: (a)   rocks are formed from magma that has cooled and hardened either beneath the surface or from a volcanic eruption