Notes – Layers of the Earth
Layers of Earth
_______ layers are:
1. ____________________
2. ____________________
3. ____________________
4. ____________________
Crust
Lithosphere
Mantle
Asthenosphere
Outer Core
Inner Core
The layer of rock that forms Earth’s __________ surface.
Thickness: Up to 32 Kilometers (______ miles - here to Stone Mountain)
thick.
Composition: The crust is made up of the __________ and the ocean
________. The crust is __________ under high mountains and
____________beneath the ocean.
The _________ __ crust consists of rocks such as granite, sandstone, and
marble. The ___________ crust consists of basalt.
Temeperature:_____ degrees Fahrenheit to ________ degrees Fahrenheit
increases with it’s depth
Density: The crust’s density also increase with it’s depth.
A rigid layer made up of the uppermost part of the mantle and the crust.
There are _______ kinds of crust: continental and oceanic.
Yes, there is even crust under the ocean!
The lithosphere (geosphere) is the "solid" part of Earth.
Which layers are included in this? ____________________ and
______________.
The layer of hot, solid material between Earth’s crust and core. The mantle is
the layer under the crust.
Thickness:It is up to 2,897 kilometers(_________ miles -from here to
Arizona) thick.
Composition: The mantle is made up of _______ such as silicon, aluminum,
iron, and magnesium.
Temeperature: Top layer - hot solid rock 1590 degrees Fahrenheit
Bottom layer - hot liquid rock 3992 degrees Fahrenheit.
Temperature increases with it’s depth.
Density:The Mantle’s density increase with it’s depth.
Prefix meaning: Asthenes (GREEK) means weak.
The plastic like layer below the lithosphere is the asthenosphere.
This is the soft layer of the mantle on which the lithosphere floats.
Which layers are included in this? ____________________ .
Thickness: The outer core is 2253 kilometers (________ - here to New
Mexico) thick.
Composition: Made up of the hot liquid metals iron and nickel.
Temeperature:The temperature ranges from 2204 – 4982 degrees Celsius
(4000 – 9000 degrees Fahrenheit)
The very center of the earth.
Thickness: 800 miles thick – From here to Dallas, TX
Composition: Made of the metals iron and nickel
Temeperature The inner core is very hot, about 4982 degrees celsius (9000
degrees fahrenheit). The inner core is ________. It is under so much pressure
from the layers above that the metal cannot spread out and become liquid.
Notes – Layers of the Earth