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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