1. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary Uh oh… Ice Melting in the Arctic Ocean Mike Steele Polar Science Center University of Washington Mike Steele Polar Science Center University of Washington

2. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary Ocean Temperature Shilshole Beach: 80°F or 90°F 32°F 56°F

3. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu The Arctic Ocean ArcticOcean Canada Greenland Russia Alaska Europe

4. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary sea ice What is Sea Ice? lake ice salty brine channels 250  m

5. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary diatom fish

6. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary end-of-summer sea ice cover 1979 2003 N. Pole N. America RussiaRussia RussiaRussia Sea ice is melting. Why is it melting?

7. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary Air temperature increase, 1979 - 2004 -2.8°F -1.9 -0.9 0 0.9 1.9 2.8°F …why?

8. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary What melts sea ice? ocean The Arctic The Tropics warm ocean currents warm ocean currents warm air warm water volcanoes How fast? cold

9. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary

10. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary hot cool Start cooking…

11. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary hot cool Metal : A good heat conductor Air : A poor heat conductor Later…

12. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary Let’s do some experiments!

13. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary “Ice Melting Blocks”  Which block is warmer?  Why does the ice melt?  What are these blocks made of?  Why is there a difference in melting? cold warm

14. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary Heat conductivity (W/m  C) @ 25  C Aluminum is over 8,000 times better than plastic foam at conducting heat

15. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary Is this a thermometer?

16. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary hot

17. Michael Steele Polar Science Center / APL University of Washington http://psc.apl.washington.edu June 2, 2011 Adams Elementary The Important Little Life of Dylan Diatom Anna Czoski Troy Tanner Janet Olsonbaker direction production animation Mike Steele Paty Matrai Lou Codispoti Victoria Hill Bonnie Light Science Advisors: Type “dylan diatom” into google…