Lecture 10

Lecture 10 - Today (Friday) in Astro 3 Cell phones off now,...

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Today (Friday) in Today (Friday) in Astro Astro 3 3 z Cell phones off now, please z Emergency rations available z Today: the rest of Chapter 5 “Earth and its Moon” z Online quiz #3 covering chapters 4 and 5 is posted, due next Monday by 10 p.m. z A few words on the midterm (next Weds)
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Summary of Chapter 5 thus far: Earth’s structure, from inside out: Core, mantle, crust, hydrosphere, atmosphere, magnetosphere Tides are caused by gravitational effects of Moon and Sun Same side of Moon always faces Earth Earth’s day is gradually slowing
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Summary of Chapter 5 thus far: Atmosphere: is mostly nitrogen and oxygen; thins rapidly with increasing altitude Greenhouse effect keeps Earth warmer than it would otherwise be Ozone layer protects us from UV radiation
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Summary of Chapter 5: Earth Study interior by studying seismic waves Crust is made of plates that move independently Movement at plate boundaries can cause earthquakes, volcanic activity, mountain ranges, and rifts
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5.5 Surface Activity on Earth
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This note was uploaded on 04/16/2008 for the course ASTR 3 taught by Professor Hauser during the Fall '07 term at UCLA.

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Lecture 10 - Today (Friday) in Astro 3 Cell phones off now,...

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