1. LIVE INTERACTIVE LEARNING @ YOUR DESKTOP Tuesday, December 9, 2008 6:30 p.m. to 8:00 p.m. Eastern time NSDL/NSTA Web Seminar Chemistry Comes Alive III: Water

2. 1.Introductions 2.Tech-help info 3.Web Seminar tools 4.Presentation 5.Evaluation 6.Chat with the presenters Agenda: http://nsdl.org

3. Jeff Layman Tech Support NSTA jlayman@nsta.org 703-312-9384 NSTA WS Staff Supporting the NSDL Presenting Team is… For additional Tech-help call: Elluminate Support, 1-866-388-8674 (Option 2) http://nsdl.org

4. Screenshot Elluminate Screenshot

5. NSTA WS Staff We would like to know more about you… http://nsdl.org

6. How many NSTA web seminars have you attended? A. 1-3 B. 4-5 C. More than 5 D. More than 10 E. This is my first NSTA web seminar Use the letters A-E located at the top left of your actual screen to answer the poll Poll #1

7. How many NSTA web seminars have you attended? A. 1-3 B. 4-5 C. More than 5 D. More than 10 E. This is my first NSTA web seminar Poll #1

8. Where are you now? http://nsdl.org

9. What grade level do you teach? Poll #2 http://nsdl.org A. Elementary School, K-5. B. Middle School, 6-8. C. High School, 9-12. D. I teach college students. E. I am an Informal Educator.

10. LIVE INTERACTIVE LEARNING @ YOUR DESKTOP Tuesday, December 9, 2008 NSDL/NSTA Web Seminar: Chemistry Comes Alive III: Water

11. Today’s NSDL Experts http://nsdl.org Dr. Lynn Diener, Assistant Professor, Mount Mary College, Milwaukee, Wisconsin Dr. John Moore, W. T. Lippincott Professor, University of Wisconsin-Madison and Director of the Institute for Chemical Education Dr. James Skinner, J. O. Hirschfelder Professor, and Director of the Theoretical Chemistry Institute, University of Wisconsin-Madison

12. Special Guest http://nsdl.org Jon Holmes, Editor of Journal of Chemical Education Online, University of Wisconsin at Madison

13. Let’s explore the chemistry and properties of water using resources from the ChemEd DL and NSDL Molecules 360 ACS Education Division Periodic Table Live! Multimedia problems J. Chemical Education CSERD Middle School Portal Teachers Domain http://nsdl.org

14. How much of the earth’s water is suitable for drinking? A.0.1% B.1% C.10% D.15% NSDL resource: http://www.epa.gov/safewater/kids/water_trivia_facts.html Poll Question: http://nsdl.org

15. H 2 O facts Made of hydrogen and oxygen Exists in 3 phases of matter on earth. Approximately 70% of a human’s mass is water. http://nsdl.org

16. In which phase of matter does water exist most frequently on earth? Stamp your answer. GasLiquid PlasmaSolid http://nsdl.org

17. Molecules 360 Water Water has a large dipole moment. –Partial positive charge on the hydrogen atoms –Partial negative charge on the oxygen atom The interaction between dipole moments on two different molecules is an important contribution to the hydrogen bond Hydrogen bonding is at the heart of the way that water behaves. http://nsdl.org http://www.chemeddl.org/collections/molecules/index.php?molecule=66

18. Water is adhesive, meaning… A.It is attracted to itself. B.It forms droplets on wax paper. C.It is attracted to other things, making it easy for water to travel upwards in a plant by adhering to cell walls. D.Water bugs can walk on water. http://nsdl.org

19. Water properties Cohesion and adhesion “Universal” solvent Solid less dense than liquid near melting point High specific heat capacity, heats of melting and vaporization, thermal conductivity, and surface tension A valuable online resource from ACS: Water activities for kids online Water activities for kids online http://nsdl.org

20. Stamp where the charge is partially negative HH O http://nsdl.org

21. Let’s pause for questions from the audience…. http://nsdl.org

22. Explore the Periodic Table Live! to learn more about hydrogen and oxygenPeriodic Table Live! http://nsdl.org http://chemeddl.org/collections/ptl/index.html

23. Learn useful information about hydrogen and oxygen by clicking on their symbols in the table http://nsdl.org

24. Chart and Sort O Atomic number: 8.0 Electronegativity: 3.44 http://nsdl.org

25. Multimedia problems can help your students learn about water properties. http://nsdl.org

26. What does the video tell you about the density of liquid water compared to solid water? A.Ice is more dense than liquid water. B.Ice is less dense than liquid water C.Ice and liquid water have the same density. http://nsdl.org

27. Let’s pause for questions from the audience…. http://nsdl.org

28. DigiDemos http://nsdl.org

29. Vegetable oil spreads quickly over the water surface stilling the waves, mineral oil does not. The mineral oil doesn’t spread quickly because its molecules are (stamp your answer): http://nsdl.org Entirely hydrophobic Entirely hydrophilic Too small

30. Other NSDL pathways also have wonderful resources to teach your students about water! http://nsdl.org

31. Solubility Solubility from CSERD http://preparatorychemistry.com/Bishop_Solubility_frames.htm

32. Which property of water is displayed in this video from the Middle School Portal?video A.Density of solid water B.“Universal” solvent C.Cohesion D.High specific heat capacity http://www.visionlearning.com/library/module_viewer.php?mid=57 http://nsdl.org

33. Teachers Domain video about oceans and climate oceans and climate http://www.teachersdomain.org/resources/ess05/sci/ess/watcyc/oceancur/index.html http://nsdl.org

34. How much water must a dairy cow drink to produce one gallon of milk? Stamp your answer. NSDL resource: http://www.epa.gov/safewater/kids/water_trivia_facts.html http://nsdl.org 1 gallon2 gallons4 gallons10 gallons

35. On average, which uses less water? Stamp your answer. http://www.epa.gov/safewater/kids/water_trivia_facts.html http://nsdl.org Hand washing dishesAutomatic dishwasher

36. Let’s pause for questions from the audience…. http://nsdl.org

37. Current research into water Surprisingly, there is still much we do not understand about water! Wall Street Journal, 3/10/06: “The structure of water isn’t certain after all.” 2 or 3.5 hydrogen bonds per molecule? Phillip Ball, Nature (2008) http://nsdl.org

38. A new experimental technique 2D-IR spectroscopy shows that in liquid water hydrogen bonds make and break in about 1.5 ps (1.5 x 10 -12 s). J. B. Asbury et al., J. Chem. Phys. 121, 12431 (2004) http://nsdl.org

39. Another new technique Vibrational sum-frequency spectroscopy shows that most molecules at the liquid surface make 2 hydrogen bonds, one donor and one acceptor. B. M. Auer and J. L. Skinner, J. Chem. Phys. 129, 214705 (2008) http://nsdl.org

40. An important theoretical technique Computer simulation. Solves Newton’s equations of motion for several hundred molecules. Videos of: a) motion in a liquid b) freezing of a liquid http://nsdl.org

41. About how long does it take a molecule to rotate substantially in liquid water? A.2 fs (2 x 10 -15 s) B. 2 ps (2 x 10 -12 s) C. 2 ns (2 x 10 -9 s) D. 2  s (2 x 10 -6 s) E. 2 ms (2 x 10 -3 s) JLS acknowledges NSF grant CHE-0750307 http://nsdl.org

42. Let’s pause for questions from the audience…. http://nsdl.org

43. Chemical Education Digital Library (ChemEd DL)… is the place on the Web to find chemistry resources. It is a collaboration of the JCE, the ACS Education Division and the ChemCollective project.

44. Everything we used today can be found in the ChemEd DL, the JCE Dlib, or NSDL. http://nsdl.org

45. http://chemeddl.org http://nsdl.org Dr. Lynn Diener lmdiener@wisc.edu Dr. John Moore jwmoore@chem.wisc.edu Dr. James Skinner skinner@chem.wisc.edu THANK YOU!

46. Learn about new tools and resources, discuss issues related to science education, find out about ways to enhance your teaching at: http://expertvoices.nsdl.org/learningdigitalK12 Resources from this seminar: http://www.diigo.com/list/nsdlworkshops/web-seminar-chemistry-water Search for “diigo nsdl workshops water” http://nsdl.org

47. http://www.elluminate.com Elluminate logo

48. http://learningcenter.nsta.org NLC screenshot

49. Sally Ride Science: Igniting Students’ Interests in Science Careers December 10, 2008 NSTA: Force and Motion: Stop Faking It! December 11, 2008 NASA: Discover the Universe – From Galileo to Today December 16, 2008 http://learningcenter.nsta.org

50. National Science Teachers Association Dr. Francis Q. Eberle, Executive Director Zipporah Miller, Associate Executive Director Conferences and Programs Al Byers, Assistant Executive Director e-Learning LIVE INTERACTIVE LEARNING @ YOUR DESKTOP NSTA Web Seminars Flavio Mendez, Senior Director Jeff Layman, Technical Coordinator

51. Web Seminar Evaluation: Click on the URL located on the Chat Window