lab 2 plate tectonics

equator

circle of latitude dividing earth into northern and southern hemispheres

prime meridian

circle of longitude dividing earth into eastern and western hemispheres

latitude

horizontal

longitude

vertical

map view

looking down, aerial view

side view

looking from side

cross section

seeing the inner workings

continental crust

granite, heavier

oceanic crust

basalt, lighter

lithospheric plates

segments of earth’s lithosphere, crust and uppermost part of the mantle

divergent boundaries

moves away from each other on mid-ocean ridges, forms new oceanic crust

mantle

is ductile

convergent boundaries

moves towards each other

subduction

where one tectonic plate slides or dives beneath another plate at a convergent plate boundary

transform boundaries

where two plates slide horizontally past each other, primarily along faults, without creating or destroying crust