Download Earth`s Interior Notes/KEY

Through time, scientists have built a __________
of what Earth’s __________ is like. They base their model
on __________ from ______ samples and __________
waves released by ____________________.
Earth’s interior is __________ into __________.
The
• A ___________layer of ___________ rock
• Includes ______ _________and __________ floor
• Thickest part is _______________ (_______________)
• Thinnest part is _______________ crust
The
• Made of rock that is very _______ but ___________.
• It is divided into ____________ layers:
1• ___________ part of the ____________ and the
_____________form this layer together.
• It is “____________” (stiff/solid)
2• Has increased _____________ and ____________
• Described as being “______________”
It is _______ & can _________, but is still __________
3Mantle
• ____________ material all the way to the core
The
• The ____________ portion of the Earth
• Divided into __________ layers
1Core
• ____________ (____________) metal
• _____________ in the liquid may create
Earth’s ________________ field
2Core
• It is a ___________ ball of solid __________ 79
Through time, scientists have built a model
of what Earth’s interior is like. They base their model
on evidence from rock samples and seismic
waves released by earthquakes.
Earth’s interior is divided into layers.
The Crust
• A thin layer of solid rock
• Includes dry land and ocean floor
• Thickest part is continents (mountains)
• Thinnest part is oceanic crust
Lithos =
“stone”
Asthenos =
“weak”
Convection
currents
happen here
Mostly
iron
and nickle
The Mantle
• Made of rock that is very hot but solid.
• It is divided into three layers:
1- Lithosphere
• Upper part of the mantle and the
crust form this layer together.
• It is “rigid” (stiff/solid)
2- Asthenosphere
• Has increased temperature and pressure
• Described as being “plastic”
It is soft & can flow, but is still solid
3- Lower Mantle
• Solid material all the way to the core
The Core
• The center portion of the Earth
• Divided into two layers
1- Outer Core
• Molten (liquid) metal
• Currents in the liquid may create
Earth’s magnetic field
2- Inner Core
• It is a dense ball of solid metal
79