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LIVE INTERACTIVE LEARNING @ YOUR DESKTOP
November 2, 2010
MESSENGER: Staying Cool – My Angle on Cooling Effects of
Distance and Inclination
Presented by: Rudo Kashiri
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MESSENGER Mission to Mercury
Presented by Rudo KashiriNASA Explorer Schools
NASA Explorer Schools
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Presentation Outline
MESSENGER education overviewNASA Connection:
- MESSEGER Mission overview- Basic facts about Mercury
Lesson: Staying Cool:SeasonsAdditional Activities
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QUESTION: What is wrong with this picture?
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QUESTION: Which has a greater effect on earth’s seasons?
A) Earth’s variation in distance to the sunB) The angle of incoming sunlight on the
earthC) The effect of the above are equal
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About the ModuleGrade Level: Middle SchoolHands on CurriculumCorrelates to National Science and Mathematics Standards
Earth Science - Earth in the solar system Physical Science- Transfer of energy
Time: 1-2 45 min periodsEssential question: How do distance and inclination affect the amount of heat received from a heat source?
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Education Materials
Modules provide:Broad, content-rich overviewLessons are - Concept Based- Inquiry driven - Standards based
Diverse activitiesMultimedia Resources
http://btc.montana.edu/messenger/main/epo.php
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Let’s Pause for Questions.
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NASA ConnectionScience Questions
• Why is Mercury so dense?• What is the geologic history of Mercury?• What is the structure of Mercury’s core?• What are the nature and origin of Mercury's
magnetic field?• What are the unusual materials at Mercury’s
poles?• What is the nature of Mercury’s atmosphere?
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Fact Sheets
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What do your students know about Mercury?
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QUESTION: Which statement is true for Mercury?
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Name the Terrestrial Planets
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MESSENGER Mission
MercurySurfaceSpaceEnvironmentGeochemistryand Ranging
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Audience Question?
1. What can we learn about earthby exploring Mercury?
2. What do we already know about Mercury?
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Let’s Pause for Questions.
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What are some of the challenges for a mission to Mercury?[Type your responses in the chat]
Audience Question?
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Lesson overview
Staying Cool: My angle on cooling• How temperature changes as a function of
distance and inclination• Discuss cause of the seasons on Earth• Discuss how MESSENGER uses these
tactics
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Poll Audience
Have you ever done similar activities thatare related to heat and temperature?
A) yes B) no C)unsure
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Lesson C
omponents
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TeamTeam MaterialsMaterials
• Time Keeper• Temperature
Monitor• Recorder
2 thermometersDesk lamp or flood lamp 2 meter sticksMasking tapeStopwatch
Effect of distance
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Effect of distance
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Let’s Pause for Questions.
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Materials Materials Materials per TeamMaterials per Team
Scissors or knife Masking TapeStopwatchColored pencils
Thermometerblack construction paperpiece of cardboardBricks or blocks toGraphing paperMeter stick
Effect of inclination
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Effect of inclination
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Putting it together
1. Which of these effects (distance or inclination) do you think is more important? Why? Is it always more important?
2. If you wanted to heat something up very quickly, how would you do it? Based on this experiment, think of two different ways.
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Let’s Pause for Questions.
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More daylight hours, more direct sunlight
Northern Hemisphere Summer
http://www.lpi.usra.edu/education/skytellers/seasons/about.shtml
QUESTION: What causes seasons on earth?
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Poll Audience
Are there seasons on mercury?A.YesB.NoC.No one knows the answer
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Seasons on Other Planets
In some cases, the changing distances from the Sun will affect the seasons.In others, the axial tilt will make a huge difference!
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Seasons on Planets
Planet Axial Tilt Eccentric Orbit Perihelion AphelionMercury 0° 0.21 88 days 28 mill. Miles 43 mill. milesVenus 177° 0.01 224 daysEarth 23° 0.02 365 days 91 mill. miles 94 mill. milesMars 25° 0.09 686 days 129 mill. miles 155 mill. milesJupiter 3° 0.05 12 yearsSaturn 27° 0.06 30 yearsUranus 98° 0.05 84 yearsNeptune 30° 0.01 165 years
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Discussion questions
1. The MESSENGER spacecraft will study the planet Mercury. The distance from Mercury to the Sun is only one third of the distance from the Earth to the Sun. Why do you think the mission designers are concerned about keeping the spacecraft cool?
2. Think of some ways to keep the MESSENGER spacecraft cool near Mercury, based on what you learned from this experiment.
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Let’s Pause for Questions.
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http://www.knowitall.org/nasa/asx/timeless_knowledge.asxhttp://www.knowitall.org/nasa/connect/index.html
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How can we study Mercury?
Sensing the Invisible: The Herschel Experiment
Students examine why infrared radiation is important
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Are there any problems we might face?
Snow Goggles and Limiting Sunlight
Students measure their field-of-view with and without snow gogglesStudents discuss how MESSENGER uses similar approaches to limit its exposure to sunlight
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Are there ways to solve these problems?
Design ChallengesTemperature
How to Keep Gelatin from Melting?
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Extensions
Activities and lesson plans that are related to MESSENGER mission.Interactive games: "Build a Spacecraft” and "Geohunter.”Make a scale model of the MESSENGER spacecraftTake a "virtual" journey into outer space with Messenger. Learn about the instruments on board
http://www.messenger-education.org/teachers/teacher_index.php
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Mercury orbit insertion
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Let’s Pause for Questions.
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NASA Explorer Schools Forums
One forum for each module
h t t p : / / neon . i n t r one two rks . com/#
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http://[email protected]
http://neon.intronetworks.com/#
http://[email protected]
http://neon.intronetworks.com/#
NASA Explorer Schools
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Thank you to the sponsor of tonight's Web Seminar:
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http://learningcenter.nsta.org
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http://www.elluminate.com
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National Science Teachers AssociationDr. 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 SeminarsPaul Tingler, Director
Jeff Layman, Technical Coordinator