plate tectonics flash cards dew next friday from the 1 day of december
what is a lithosphere?
the outer layer of earth that consists of crust and rigid upper part of mantle
Asthenosphere what is it
it is between lithosphere and mesosphere and which teconic plates move on mantle
Mesosphere what is
it is between asthenoshere the outer core
Inner Core
what is it
it is the center of the earth and outer core is outer
Outer Core
before the inner core
Seismic Waves
they are what earthquakes produce and scientist use them to know how many layers of earth are
Oceanic Crust
it is the crust under the ocean
Continental Crust
is the crust under land
Density
the compactness of an object
Wegener
Alfred Wegner who wrote the hypothesis of continental drift
Continental Drift
the hypothesis that states the continents once made from one single continent and broke up and drifted to to their present location
Convergent Boundary
boundary formed by the collision of two lithospheric plates
Divergent Boundary
boundary between two tectonic plates that moving away from each other
Transform Boundary
boundary made by tectonic plates sliding past each other horizontally
Sea-floor Spreading
when new oceanic lithosphere forms as magma rises to top of earth and solidifies
