2. Layers of the Earth
Crust
• Made up of Rocks/Minerals Upper Mantle called
• 5 - 70 KM thick Lithosphere Mantle
• Solid. As rocks and minerals Middle Mantle called • Varied Minerals
grew cold, they solidify. Asthenosphere • 2,900 KM thick
Lower Mantle called • Mesosphere is liquid
Mesosphere • Asthenosphere is pyro-plastic
Outer Core • Lithosphere is solid
• Made up of Nickel and Iron
• 2,220 KM thick
• Liquid. Due to the heat of the
inner core, Iron and Nickel
melts and remain liquid. Inner Core
• Made up of Nickel and Iron
• 1,228 KM thick
• Solid due to high pressure
from the weight of the upper
layers. The hottest layer.
4. Lowest Fold
Inner Core
Inner Core • Inner Core is
Composition solid due to
great pressure
from the weight
Thickness of the upper
layer.
• It is extremely
State of Matter hot at more than
6,000° C or
10,800 ° F
Color it Yellow
5. 2nd Fold
Outer Core
Outer Core • Outer Core is
Composition liquid due to
great heat.
• Pressure is not
Thickness great enough to
compress it
solid.
State of Matter • It is extremely
hot at more than
1,250° C or
2,280 ° F
Color it Orange
6. 3rd Fold
Upper Mantle
Lithosphere
Convection Currents
Mantle Asthenosphere
Composition Middle Mantle
Lower Mantle Mesosphere
Thickness
• Lower Mantle is liquid
State of Matter • Middle Mantle is pyro-plastic and boiling like
Lower – liquid spaghetti sauce.
Middle – pyro plastic • Upper Mantle is cooled off by the atmosphere
Upper - Solid outside and is solid.
Color Lower Mantle Red-Orange
Color Middle Mantle Red
Color Upper Mantle Light Brown
7. Top Fold
Continent
Crust Ocean
Composition
Continental Crust
Oceanic Crust
Thickness
• Continental crust is thick because it consists of
State of Matter mountains and plains.
• Oceanic crusts are thinner because they are
under the heavy pressure of the ocean that
compresses it.
Color it as follows:
1. Continental Crust - Light Brown, 2, Oceanic Crust – Dark Brown,
3. Continent – Green and 4. Ocean - Blue
