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Unit # 1: Structure of the Earth
Name: _______________________________Date: _____________________________
Please read Chapter 3 and define the terms below. Complete the organizer on the backside. Some research will be
required as not all terms are in your textbook.
Earth’s Interior Diagram
Terms to know and define:
Geology
Relative and Absolute Time
Superposition
Law of Uniformitarianism
Fossil Correlation
Radioactive Decay
Seismology
Seismograph
1.
2.
What evidence exists about Earth’s interior? List any instruments used to explore Earth’s interior.
From page 36, “Life would not exist on Earth if not for its interior.” To what extent does the
creation of Earth’s atmosphere supports this statement? Writing a few sentences/paragraph,
explain your answer. To be submitted to Ms. Bader.
CGF3M: Physical Geography
Canadian and World Studies
Internal structures of the earth comparison organizer!
Name
Inner Core
Outer Core
Mantle
Asthenosphere
Crust
Depth
Thickness
Temperature
Solid or
Liquid
Density
Principal
Compounds
SIMA –
SIAL –
Special
Features
CGF3M: Physical Geography
Canadian and World Studies
"Earth's Interior", Earth Revealed (Annenberg/CPB), Video
Geophysics and oil exploration help reveal the secrets of the Earth's interior
structure. By the conclusion of the video you should be able to (on separate paper):
1. Describe how seismic waves are used to deduce (assume) the structure of the
Earth's interior.
2. Describe the three main layers of the Earth's interior structure.
3. Compare and contrast the difference between ocean and continental crust.
4. Describe how Earth's magnetic field operates.
5. Describe the different direct and indirect evidence used by geoscientists to
determine the characteristics of Earth's interior.
CGF3M: Physical Geography
Canadian and World Studies