Sep 2, 2008   (The Day after Gustav and the 3-Year Anniversary of Hurricane Katrina Landfall)

ANNOUNCEMENTS 

IF YOU MISSED CLASS TODAY

In class today we did the following:  

1.   Dr H gave a presentation on Topic #3 Introduction to Key Issues of Global Change & Quantifying Nature: 

   Topic #3 Introduction to Key Issues of Global Change & Quantifying Nature [pdf]

2. We watched the classic POWERS OF 10 VIDEO.  You can watch it online again at YouTube by clicking on the following link:

  POWERS OF 10 
                "A Journey dealing with the relative size of things in the universe and the effect of adding another zero"

 See additional Powers of 10 links on the NATS 101gc Webpage under GLOBAL CHANGE LINKS. 

3.  SCIENTIFIC NOTATION REVIEW:   Students were urged to "brush up" on the scientific notation rules on
            p 17 of CLASS NOTES (when you get your copy)
            SGC-Hobson Chapter 2 also has a review and some practice questions.

Here are the answers to the Scientific Notation Practice questions on p 17 in Class Notes:

Examples:    (7.5 x 10 5) / (2.5 x 10 2) = 3.0 x 10 3

Answers:

Wavelength of UV radiation = .0000001 m

Population of the world = 6 x 10 9  people

Ratio of Earth diameter to diameter of a carbon atom =

1 x 10 7 / 1 x 10 -10 = 1 x 10 17

4.  Assignment I-1 was announced -- it will be posted in D2L under ASSIGNMENTS on Wednesday morning 9/3.   Please read through it and come to class on Thursday with any questions about how to do it.   

  NEW ASSIGNMENT DUE in class on Tuesday Sep 9.   
                              ASSIGNMENT I-1 Your Ecological Footprint 

ANNOUNCEMENTS:  

1.  Please purchase your CLASS NOTES package as soon as possible when it is ready (on Thursday Sep 4th) and bring it to each class with you.  You'll definitely need it for this Thursday (Sep 4).

In D2L see the CHECKLIST TOOL to find out what you should be working on during this week (Week 2)

2. ONLINE QUIZ  RQ-1 (in D2L) is due on THURSDAY Sep 4th  before the posted cutoff time, which is 30 minutes before class starts.

3. OFFICE HOURS for Dr H & the TA's will be posted soon and start at the end of this week.

4. Be sure you've filled out and turned in your yellow background form.  You will be administratively dropped from the course if I don't get your form in by Thursday Sep 4.  Click the following link to get the online version of the BACKGROUND FORM, fill it out, then email it to Dr. H as soon as possible at:   katie@ltrr.arizona.edu

IF YOU MISSED CLASS TODAY:  

  • Review the presentation for Topic #3 that you missed (by clicking on the presentation link above) & view the Powers of 10 Video (see link above). 

  • Read through Assignment I-1 (My Ecological Footprint) and  come to class with any questions about how to do it.  It is due in class on  Tuesday Sep 9.