infomation on igneous rocks?

Question

yup i need to have some infomation on those rocks (:

Answer 1

Igneous rocks are called fire rocks and are formed either underground or above ground. Underground, they are formed when the melted rock, called magma, deep within the earth becomes trapped in small pockets. As these pockets of magma cool slowly underground, the magma becomes igneous rocks.

Igneous rocks are also formed when volcanoes erupt, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above ground.

Answer 2

Igneous rocks are formed by the cooling of magma or lava.

Intrusive/Plutonic igneous rocks are formed by the cooling of magma beneath the Earth's surface in the crust creating what we call plutons. These rocks are characterized by coarse grained textures.

Extrusive/Volcanic igneous rocks are formed when lava that has erupted from a volcano cools on the surface of the Earth. These rocks have finer grained textures or glass like appearances.