Astronomy 1400 Review for Test 3

Astronomy 1400 Review for Test 3 - Astronomy 1400 Review...

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Astronomy 1400 Review for Test 3 Chapter 9 1. What is geology? 2. How do we know the structure of the interior of Earth? 3. What is differentiation in planetary geology? Is the interior of the Earth uniform in composition or differentiated? 4. What are the layers and their phase (solid or liquid) of the interior of Earth? How do we know that there is liquid metal inside Earth? Mantle is liquid plastic stuff 5. What must happen to a planet in order for differentiation to occur? 6. What are sources of internal heat for a planet? 7. About how hot is the inner core of Earth? Why is the core hot? 8. Which terrestrials have magnetic fields? Which terrestrial has the strongest magnetic field? Earth has the strongest magnetic field 9. Where does Earth’s field emanate from? How is it produced? 10. Has Earth’s Magnetic field ever switched polarity? How do we know? 11. What are the four basic processes that shape surface geology? 12. Describe the surface features of the terrestrial worlds (planets and Earth’s Moon). Moon- has maria and highlands Mercury- has fewer craters than on the moon, evidence for both ice and tectonic activity Mars- has mountains and canyons (Valles Marheris. Also has volcanoes Has Olympus Mons which is the biggest volcano in the solar system 13. Considering the Moon: What are maria and how were they formed? Highlands? Which is older? Why? Which of the four basic processes affect the surface geology today? 14. Considering Mercury, Tectonics caused what unique surface feature? Why did these cliffs form? Is there weather? Is there ice? Where?
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This note was uploaded on 04/08/2008 for the course ASTR 1400 taught by Professor Holtz during the Spring '07 term at Texas Tech.

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Astronomy 1400 Review for Test 3 - Astronomy 1400 Review...

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