properties of living things: searching for fingerprints of ......jan 10, 2013 · properties of...
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LIVE INTERACTIVE LEARNING @ YOUR DESKTOP
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January 10, 20136:30 p.m. – 8:00 p.m. Eastern time
Properties of Living Things: Searching for Fingerprints of Life on Mars
Presented by: Rudo Kashiri
Introducing today’s presenter…
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Rudo KashiriNASA Explorer Schools Education SpecialistNASA Langley Research CenterHampton, VA
Properties of Living Things:Searching for Fingerprints of
Life on Mars
Presented by Rudo KashiriNASA Explorer Schools
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NASA Explorer Schools
AgendaNASA Connection
Featured lessons:
Extremophiles
Searching for life
NASA Explorer Schools
Grade level: 5-8
National science StandardsRegulation and behaviorProperties and changes of properties in matterStructure and function of living systems
Question
What does it mean to say that finding a habitable planet is sort of like the story of Goldilocks?
Too hot! Too cold!Just right!
Too Big or Too Small
Potentially Habitable Exoplanet
What’s essential for life?1. Deprived of air, you would die within a
A.) few minutes B.) days C.) weeks.
2. Deprived of water, you would die within a A.) few minutes B.) days C.) weeks.
3. Deprived of Food, you would die within a A.) few minutes B.) days C.) weeks.
What defines “life”? What does life look like?Where is life found?What sustains life?
Astrobiology in Your Classroom
GrowMoveBreathe Reproduce Feeding
UnicellularMulticellularProduce energyUse nutrientsUse energyMetabolism Respond to stimuliAdapt/Evolve Displays organizationHomeostasisShow heredityCellular structure
Let’s Pause for Questions.
What are Extremophiles?
Discovery of Arsenic Microbe
Where is life found on earth?
Let’s Pause for Questions.
Activity: It’s Just RightExperiment with gas production of yeast at different temperatures.
What will the students learn?
The characteristics of life.How temperature is related to the growth and survival of organisms.The concept of life in extreme environments.
Materials
A Sugar Yeast No waterB Sugar Yeast Warm waterC Sugar Yeast Warm waterD Sugar Yeast Warm water
A Sugar Yeast No water TableB Sugar Yeast Warm water Table
CSugar Yeast Warm water Warm bath
D Sugar Yeast Warm water Cold bath
Graphs and Student Handouts
Ideas
Let’s Pause for Questions.
Earth or Mars?
Is there life on Mars?
NASA/JPL-Caltech
Where should we look for life?
Why Curiosity’s Mission to Mars Matters
Artist’s Concept. NASAJPL-Caltech
Let’s Pause for Questions.
Activity: Is it Alive?
What will the students learn?
How to conduct simulated experiment with soil samples similar to the experiments on the Mars Viking Lander.
State relationships between the soil samples using their operational definition of life.
How to make an inference about the possibility of life on Mars based on data obtained.
Materials
A Sand SugarB Sand Sugar Active dry yeastC Sand Sugar Alka-Seltzer
(crushed)
Data Sheets
Dry Samples
A Sand SugarB Sand Sugar Active dry yeastC Sand Sugar Alka-Seltzer
Hot water in “A”
A Sand Sugar
B Sand Sugar Active dry yeast
C Sand Sugar Alka-Seltzer
Hot Water in “B”
A Sand SugarB Sand Sugar Active dry yeastC Sand Sugar Alka-Seltzer
Hot water in “C”
Is it Alive?
APhysical change,sugar dissolves.
BChemical reaction after 10 minutes, reaction continued
CImmediate chemical reaction, but stopped after 10 minutes.
Other Lesson Ideas
Using bottles and balloons
Measure balloon’s circumference
Let’s Pause for Questions.
Do you plan to use these activities in your classroom?
It’s Just Right
Is it Alive?
Both
Neither one
Thanks to today’s presenter!
Rudo KashiriNASA Explorer Schools Education SpecialistNASA Langley Research CenterHampton, VA
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Thank you to the sponsor of tonight’s web seminar:
This web seminar contains information about programs, products, and services offered by third parties, as well as links to third-party websites. The presence of a listing or such information does not constitute an endorsement by NSTA of a
particular company or organization, or its programs, products, or services.51
National Science Teachers AssociationGerry Wheeler, Interim Executive Director
Zipporah Miller, Associate Executive Director, Conferences and Programs
Al Byers , Ph.D., Assistant Executive Director, e-Learning and Government Partnerships
Flavio Mendez, Senior Director, NSTA Learning Center
NSTA Web SeminarsBrynn Slate, Manager
Jeff Layman, Technical Coordinator52