Choose one of the rocks to see it form! rocks: metamorphic rock igneous rock sedimentary rock spoilers on how they form/ in depth explanation.⬇⬇⬇ ⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇⬇ metamorphic rock is sedimentary rock or igneous rock that is pressed and heated turning it into a metamorphic rock igneous rock is when magma flows on top of the volcano turning into lava, cooling down and crystalizing into igneous rock. Sedimentary rock is when weathering and erosion happens. Sediments flow down rivers or water and then are deposited and go together to form layers, or sedimentary rock.