Types of rocks
By Raquel Peralta
Sedimentary rocks
Sedimentary rocks are formed by sedimentary that is deposited over time usually as layers at the bottom of lakes and oceans.
Metamorphic rocks
Metamorphic rocks have been changed over time by extreme pressure and heat. Uplift and erosion help bring metamorphic rocks to the earths surface.
Igneous rock
Igneous rocks is formed when magma cools down, it may do this above or below , the earths surface of magma can be forced into rocks, blown out in volcanic explosions or forced to the surface of lava.