Earth’s Model
What do we know?
What is the evidence?
Earth’s Layers
Draw the divisions between the crust, mantle, outer core, and inner core
My Guess
Actual
Earth’s Model notes (fill-in)
What do we know?
What is the evidence?
1. Spherical (almost)
1. Satellite images and measurements
2. There are 7 continents, oceans,
islands, an atmosphere, ect.
2. Mapping through exploration, direct
evidence (sampling of atmosphere)
3. There are 4 main layers
a) Crust
_________ layer (___ km)--- ________________________________
Made of _____and minerals
________________________________
Mostly silicon--------------
________________________________
________-----------------------
________________________________
__________ temperature------ ________________________________
b) Mantle
______ km---------------------- ________________________________
Made of mostly _____________
and ________________------
________________________________
Hot!----------------------------
________________________________
Solid and liquid (________)---
_________________________________
c) Outer Core
______ km---------------------- _________________________________
_________---------------------- _________________________________
________!----------------------
_________________________________
Made of ________ and nickel _________________________________
d) Inner Core
______________ km---------- _________________________________
____________ __________- _________________________________
_________________-------
_________________________________
Earth’s Model Notes (KEY)
What do we know?
What is the evidence?
1. Spherical (almost)
1. Satellite images and measurements
2. There are 7 continents, oceans,
islands, an atmosphere, ect.
2. Mapping through exploration, direct
evidence (sampling of atmosphere)
3. There are 4 main layers
e) Crust
Thinnest layer (30 km)---
Seismic waves
Made of rocks and minerals-
Direct Sampling
Mostly silicon--------------
Direct Sampling
Solid-----------------------
Direct Sampling
Coolest temperature------
Direct Sampling
f) Mantle
2,250 km----------------------
Made of mostly magnesium and
Seismic waves
Lava
Nickel---------------------------
Hot!----------------------------
Inference/mathematic/radioactive decay.
Solid and liquid (plastic)---
Seismic waves, Volcanic material (lava)
g) Outer Core
2,900 km----------------------
Seismic waves
Liquid----------------------
S-waves shadow zone
Hotter!----------------------
Inference/mathematic/radioactive decay.
Made of iron and nickel----
Magnetic Field
h) Inner Core
1,300 km-------------------
Solid Iron-----------------
Hottest-------------------
Seismic waves
Refraction of P-waves, Magnetic Field
Inference/mathematic/radioactive decay.