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Fall 2009  Astr 210L  Lab 09  
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"What's this silly girl made of?
I'm sure it's very nice,
But I don't think it's sugar and spice,
Something heavy, 
But not that stable,
Like everything from the bottom of the periodic table!"
--Gangster Fun, _A Date with Density_

LAB 9: DENSITY AND COMPOSITION [*.pdf]
Current events quiz [10 min]
Study guide: [1], [2], [3], [4]
SurveyMonkey.com pre-lab: M, Tu, F
     (M, Tu: due 12:00 PM on same day of lab)
     (F: due 10:00 AM on same day of lab)     

Briefing (*.pdf) (*.mov) 
     Galilean Moons
     What's What
     Moon Formation Theories 
     (Fix, _Astronomy: Journey to the Cosmic Frontier, 4/e_, pp. 200-202)
          Fig. 9.28 = three gradual formation theories (*.gif)
          Fig. 9.29 = giant impact theory (*.gif)
     
In-class lab work (*.mov)
     Find and sit in your groups
     Work cooperatively as a group
     Fill out worksheets individually
     Finished?  Turn in worksheets as a group
     One worksheet is randomly selected for group grading
     
NEXT LAB 
Download and read Lab 10 worksheets ahead of time
Bring calculator to lab for credit
Read current events study guide (posted Sunday 12:00 AM)
Answer Surveymonkey.com pre-lab (posted Friday 12:00 AM)