Astronomy Exam 2 - Astronomy Study Guide for Exam 2...

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Astronomy Study Guide for Exam 2 Structure of the Solar System: Kinds of Planets (2) Kuiper Belt Oort Cloud Patterns suggesting common origin 1. orbital plane and direction 2. size of planet 3. surface 4. spin rate 5. tilt 6. rings 7. satellites Age 1. radioactive half-life 2. disk shape of solar nebula caused by spin Condensation: Planetesimals: Impacts: Differentiation vs. sedimentation: Clearing the nebula: Origin of atmosphere: 3 conditions necessary for atmosphere to remain: In-Class Notes 10-05- 2010 2 Things caused early planets to be so hot that rocks melted 1. heat of collision 2. radioactivity Main ingredients of crust (2) 1. 2.
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EARTH Iron Core Theory of Differentiation (DATA) 1. Volcanoes 2. Seismology “listening to how sound travels the Earth”. Earth Defenses Space Dangers 1. Magnetic Field Solar Wind 2. Air Pressure Vacuum (no air in space) 3. Air Friction Space Dust; Cosmic Ray 4. Ozone Layer UV Rays 5. Greenhouse Gasses (CO 2 , H 2 0) Cold Many Arabs Air Out Gas So Vicki Stays Under Couch
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