Important:

• Prepare for Test #1 on Monday.
• The field trip to Pacific Science Center is 2/17/2010 during class time. DO NOT BE LATE.
• Be sure you can draw and label a picture of our galaxy from the side.

We finished the powerpoint from last time.

We talked about our galaxy, and finished quiz #3. The handout was about the Distance ladder – it is one of the pages in the powerpoint. 2010_02_04 LP08 Our Galactic Home

Links to videos:

• http://www.youtube.com/watch?v=Suugn-p5C1M&feature=player_embedded
• http://www.amasci.com/amateur/traffic/traffic1.html
• http://www.youtube.com/watch?v=duh2srW8j3U
• http://www.youtube.com/watch?v=c5Us-jonCLA&feature=player_embedded

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