Rock Cycle Model

This is the first model I had of the rock cycle. In reality, my first model is actually pretty accurate without the specific details. My first model has an understanding that rocks can start in a melted state and after several years of cooling, the melted state turns into a solid state. Through weathering and erosion, rocks can be broken apart into smaller pieces. The smaller pieces can eventually be melted down and form back into lava. 

After today's class, it was a quite obvious that I don't know much in detail about the rock cycle. There are three types of rocks within the rock cycles. Igneous rocks are rocks in their melted state. Due to the cooling of igneous rocks, two types of igneous rocks can be formed such as, extrusive and intrusive. Intrusive are coarse grained igneous rocks and extrusive are fine grained igneous rocks. Through erosion and lithification on igneous rocks, sedimentary rocks are formed. The two types of sedimentary rocks are detrital and chemical. Detrital sedimentary rocks consist of bits and pieces of inclusions. Chemical rocks form by chemical changes to the sedimentary rocks. Once sedimentary rocks are exposed to heat and pressure, they form into metamorphic rocks. Their are two classifications to metamorphic rocks as well. There are foliated metamorphic rocks that show bands or layers, and there are nonfoliated rocks that don't show bands. If metamorphic rocks are exposed to enough heat, they eventually melt, forming back into igneous rocks. The rock cycle isn't bound by a particular clockwise rotation. At any given time, a rock can go backwards in the cycle as well as skip  a step.