the soft layer of the mantle on which the tectonic plates move.
asthenosphere
the central part of the Earth below the mantle.
core
the thin and solid outermost layer of the Earth above the mantle.
crust
the solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle.
lithoshpere
the layer of rock between the Earth’s crust and core.
mantle
the strong, lower part of the mantle between the asthenosphere and the outer core.
mesosphere
a block of lithosphere that consists of the crust and rigid, outermost part of the mantle.
tectonic plates