Chemical and Physical Layers of the Earth
inner core
A dense sphere of solid iron and nickel at the center of Earth
outer core
A layer of molten iron and nickel that surrounds the inner core of Earth
Atmosphere
A mixture of gases that surrounds a planet or moon
Lithosphere
A rigid layer made up of the uppermost part of the mantle and the crust.
Hydrosphere
All the water at and near the surface of the earth, 97% of which is in oceans
Earth's magnetic field
Magnetic lines of force from Earth's polar north and south, acting like a giant magnet.
core
The central part of the earth below the mantle
Mantle
The layer of hot, solid material between Earth's crust and core. Convection Currents.
Asthenosphere
The mantle below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
Geosphere
The mostly solid, rocky part of the Earth; extends from the center of the core to the surface of the crust.
Mesosphere
The strong, lower part of the mantle between the asthenosphere and the outer core
Crust
The thin and solid outermost layer of the Earth above the mantle
convection current
a current caused by the rising of heated fluid and sinking of cooled fluid
Chemical Layers of Earth
crust, mantle, core
Physical Layers of the Earth
lithosphere, asthenosphere, mesosphere, outer core, inner core