In class we learned about volcanos and lava tyes. I had an okay time doing this assiment. We learned about different types of volcanos and lava. Composite volcanos are fomed by altering layers of lava and rock fragments. Another type of volcano is Shield volcano. They are huge in size, they are built by many layers of dry runny lava flows. Cinder Cone volcano. They are a steep conical hill formed above a vent. They are among the most common volcanic landforms foumd in the world. Mt. St. Helens is a Cinder Cone volcano. Now you know some things on volcanos.