Science Chapter 2, Lesson 1

Eqrth's Internal process and crustal deformities

consist of 3 layers

Compositional layers

Inner part of the earth

Core

consist of 5 layers of the Earth

Mechanical layer

A region of partially molten mantle materials

Asthenosphere

Beneath the asthenosphere where a region of increased pressure flow ceases.

Mesosphere

External part of the core

outer core

beneath the outer core

Inner core

Boundary between crust and mantle

Mohorovicic Discontinuity

Boundary at which the mantle meets the core

Gutenberg Discontinuity

Region between inner and outer core

Lehmann Discontinuity

Croatian seismologist who discovered Moho Discontinuity

Andrija Mohorovicic

German-born American Seismologist

Beno Gutenberg

Danish Seismologist and geophysicist

Inge Lehmann

The process of transfering heat

Heat transfer

Heat coming from the core travels through atoms

Conduction

heat currents that allow materials to more freely

Convection

The quick change in seismic velocities in a boundary

Seismic Discontinuity