Download Earth`s Layers

Inside Earth
Chapter 6.1 Text on CD page 161
crust
The rocky outer layer of the Earth’s surface.
The two types of crust are continental and
oceanic.
continental crust
The crust that makes up the continents; thicker
and less dense than oceanic crust.
oceanic crust
The crust that underlies the oceans; thinner and
denser than continental crust.
mantle
The middle layer of the Earth; made of hot rock
that circulates by convection.
core
The innermost, densest layer of a celestial body.
Earth’s metallic core has an inner solid layer and
an outer layer of liquid metal.
conduction
The process in which energy moves from a
location of higher temperature to a location of
lower temperature as heat.
The material does not move, just the heat.
convection
The movement of material due to differences in
temperature.
lithosphere
The layer of solid, brittle rock that makes up the
Earth’s surface; the crust and the uppermost
mantle.
asthenosphere
Beneath the lithosphere, the part of the mantle
that is solid rock.
It can flow with plasticity.
crust
asthenosphere
mantle
outer core
core
Inner core