layers of the earth
what is the thinnest layer of the earth?
what is crust
the diagram shows the locations of volcanoes all around the world. based on the diagram describe where the volcanoes are most likely to erupt?
volcanoes form where tectonic plates meet other tectonic plates.
what are most rocks made of?
what are minerals
identify the thickest layer of the earth
what is mantle
which type of boundary does the diagram represent?
convergent boundary
what processes will change a sedimentary rock into an igneous rock?
what is melting and crystallization
what layer of the earth has the greatest pressure and density?
what is inner core
plate tectonics describes movements mainly in which layer of the earth
what is earths crust
how are large crystals formed in rocks?
slow cooling of magma
identify the layer which is solid but capable of flow
what is mantle
explain how convection currents cause the earth's crust to move.
the mantle is made up of very hot material that rises to the top of the mantle, cools, then sinks, reheats, and rises again.
why is the inner core solid?
the pressure from the outer core, mantle, and crust compresses it tremendously.
where do most geologic events take place?
the boundary of tectonic plates