By Shawn Flanery
A thin layer of material that shifts. plate tectonics are huge rocks that float on a mixture of rock and magma.
invalid i need more evidence of plate techtonics
Similar rocks from landmarks on other continents.
Glacier carved hole in tropical climate area's.https://docs.google.com/a/cbcsd.org/presentation/d/17nno5DdGRQamq6SjAqmkOdpuu4s6FCYW-QeDWX9E-Rc/edit#slide=id.gb1a176dc_035
Valid because if you look at the world it will piece together
SEA FLOOR SPREADING
magma pushes up through the oceanic crust and turns into rock.https://docs.google.com/a/cbcsd.org/document/d/1JAIQhdPptybdFriDYlAdFdW2kFlWvOyBmJjV_83JM_c/edit
valid because there is proof of new and old rocks