Igneous Rocks
Igneous Rocks are formed when hot magma or lava cools and becomes solid. There are two types of Igneous Rocks:1. EXTRUSIVE 2. INTRUSIVE Magma is melted rock found deep below Earths Crust, where temperatures are very high.
Links can be found here for examples:
http://geology.com/rocks/pictures/scoria.jpg dec 2, 2011
Intursive and Extrusive
Intrusive means under the surface, it is Igneous rocks being created from the inside.Intrusive means in the earth, extrusive means outside the earth, like on the earths crust. Intrusive rocks are created when magma cools within the earth and over time creates rocks. Extrusive is when lava cools on the outside of our Earth and over time it becomes rock like Intrusive.
Links can be found here for examples:
http://www.youtube.com/watch?v=ryrXAGY1dmE Dec 4, 2011
Links can be found here for examples:
http://geology.com/rocks/pictures/scoria.jpg dec 2, 2011
Intursive and Extrusive
Intrusive means under the surface, it is Igneous rocks being created from the inside.Intrusive means in the earth, extrusive means outside the earth, like on the earths crust. Intrusive rocks are created when magma cools within the earth and over time creates rocks. Extrusive is when lava cools on the outside of our Earth and over time it becomes rock like Intrusive.
Links can be found here for examples:
http://www.youtube.com/watch?v=ryrXAGY1dmE Dec 4, 2011