LIVE INTERACTIVE LEARNING @ YOUR DESKTOP

1. LIVE INTERACTIVE LEARNING @ YOUR DESKTOP NES: Electrolysis of Water: A Breath of Fresh Air Presented by: Alissa Keil February 21, 2012

2. NASAExplorerSchools Electrolysis of Water: A Breath of Fresh Air Presented by: Alissa Keil, NES Educational Specialist Oklahoma State University NASA Johnson Space Center

3. Teachers, what subject do you teach? Physics Chemistry Biology Earth Science General Science

4. Where does electrolysis fit into your classroom scope and sequence? Type your responses in the chat box.

5. What are you hoping to get out of tonight’s web seminar?

6. NASAExplorerSchools Overview of Session Electrolysis of Water: A Breath of Fresh Air 1. What this lesson teaches, where to find lesson 2. Introduction/prep to the Breath of Fresh Air lab activity 3. Suggestions for teaching concepts and presenting lessons: - How to introduce the lesson - Performing the experiment - Analyzing results, discussion 4. Extensions and resources for implementing

7. Have you heard of NASA Explorer Schools? √ Yes X No

8. NASA Explorer Schools NASA Explorer School Virtual Campus http://explorerschools.nasa.gov

12. How many of you have taught electrolysis in the classroom? Raise your hand if you have.

13. Have you used NASA lessons in your classroom? √ Yes X No

14. NASAExplorerSchools Subject Areas Electrolysis of Water: Breath of Fresh Air Subject Area: AP Chemistry Grade Level: 10-12

15. NASAExplorerSchools Lesson Electrolysis of Water: Breath of Fresh Air AP Chemistry Lab Activity and Free-Response Question Key Topic: Electrolysis of Water

16. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air Electrolysis of Water: A Breath of Fresh Air This lesson features: • Educator edition with answer key • Student edition • NASA Explorer Schools site • http://explorerschools.nasa.gov

17. NASAExplorerSchools National Standards Electrolysis of Water: Breath of Fresh Air • National Science Education Standards • Science Standards • Physical Science • Science and Technology • History and Nature of Science

18. NASAExplorerSchools Learning Objectives Electrolysis of Water: Breath of Fresh Air In the lab activity A Breath of Fresh Air students will: construct an electrolytic cell; determine the number of moles and mass of oxygen produced; determine the number of electrons transferred; and compare their experimental electrolytic cell to the Oxygen Generator System used on the International Space Station.

19. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air Learning Objectives In the FRQ Oxygen Generator System students will: write balanced equations for half reactions; predict direction of oxidation-reduction reactions; and determine mass and volume relationship with an emphasis on mole concepts.

20. Check for Understanding √ = Yes, I can answer these questions! X = No, I need further clarification. 1. What does this lesson teach/objectives? 2. Where can you download the educator guide/lesson?

21. Quick Quiz Question - QQQ • How many nations are involved in the building and support of the International Space Station? • 5 • 16 • 21 • 3

22. Questions?

23. NASA Connections and the Classroom

24. Past to Present

25. Regenerative Environmental Control and Life Support System Diagram

26. NASAExplorerSchools The NASA Connection Electrolysis of Water: Breath of Fresh Air Diagram depiction of the electrolysis process used in the OGS system in one of the multiple electrolytic cells Electrolysis is used on the International Space Station as part of the Environmental Control and Life Support Systems.

27. NASAExplorerSchools Prototype ECLSS Racks

28. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air Oxygen Generator System

29. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air

30. NASAExplorerSchools ISS Expedition 30

31. International Space Station Environment Exploration Water Recovery System Beakers contain fluids from various stages of water processing View of surface tension demonstration on board the International Space Station

32. Quick Quiz Question - QQQ • What is the International Space Station, ISS? • An orbiting multidisciplinary laboratory • A space shuttle • A large space outpost that houses 20 astronauts

33. Questions?

34. NASAExplorerSchools A Breath of Fresh AirLesson Info Electrolysis of Water: Breath of Fresh Air

35. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air Class Time Required The lab activity A Breath of Fresh Air Requires one 90-minute class period or two 50-minute class periods. Day 1: Go through the background information with students, have them answer the pre-lab questions and have them set up for the lab. Day 2: Have students complete the lab and the analysis questions.

36. NASAExplorerSchools Class Time Required Electrolysis of Water: Breath of Fresh Air The FRQ Oxygen Generator System Requires 45 – 60 minutes, part of which could be assigned for homework. • Can be used as a follow-up assessment for the lab activity at the end of the unit or even shortly before the AP exam to remind students of the learning. • Can also be used as a stand-alone activity for those who do not have the required technology to run the lab.

37. NASAExplorerSchools Technology Used Electrolysis of Water: Breath of Fresh Air The lab activity A Breath of Fresh Air Requires the use of TI-Nspire technology. Each lab station will need at least one TI-Nspire handheld with a Vernier Easylink cable, Vernier Current probe and DC source.

38. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air Technology Used The FRQ Oxygen Generator System Requires only the use of a standard calculator.

39. NASAExplorerSchools Equipment Used for Lab Electrolysis of Water: Breath of Fresh Air TI-Nspire Handheld, Vernier Current Probe, Vernier EasyLink Electrolysis Apparatus - can use a hofman tube or two graduated gas tubes and electrodes in a beaker Three wires with alligator clips 9-12 V DC power source (< 0.5 amperage)

40. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air TI-Nspire Handheld CX Touchpad Clickpad

41. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air Vernier Current Probe and EasyLink

42. NASAExplorerSchools Electrolysis of Water: Breath of Fresh Air DC Source or

43. NASAExplorerSchools Chemicals Used for Lab Electrolysis of Water: Breath of Fresh Air Potassium Hydroxide Each lab station will need to create 100mL of 3% KOH solution by dissolving 3g of KOH in 97g of water.

44. NASAExplorerSchools Safety Precautions Electrolysis of Water: Breath of Fresh Air Students should wear safety goggles and aprons. Students should avoid physical contact with potassium hydroxide. Potassium hydroxide is a toxic, corrosive material that causes severe burns to skin, eyes, respiratory tract, and gastrointestinal tract. Refer to MSDS sheet when using this material with your students. Students should avoid contact with any bare metal in the electrical circuit.

45. Common Misconceptions What are some common misconceptions your students may have about electrolysis? Type one idea into the chat window.

46. Why reuse water? Why reuse water aboard the ISS? Why reuse water here on Earth? Type a response for each into the chat box.

47. Quick Quiz Question - QQQ • How often does the ISS orbit the Earth? • Once every hour • Once every hour and a half • Once every three hours

48. Questions?

49. NASAExplorerSchools A Breath of Fresh AirLab Activity Electrolysis of Water: Breath of Fresh Air

50. NASAExplorerSchools Engage Electrolysis of Water: Breath of Fresh Air Connect activity to previous learning Read through background section with students encouraging discussion Show students the video of interview with ETHOS flight controller