mars national aeronautics and space agency the xtreme-o-philes! school of earth and space...
TRANSCRIPT
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Mars
National Aeronautics and Space Agency
The Xtreme-o-philes!
School of Earth and Space ExplorationArizona State University Mars Education Program
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What are the conditions for life?
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What are the conditions for life?Water Air Nutrients Temp Space
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What are the conditions for life?Water Air Nutrients Temp Space
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Do all organisms on Earth follow these norms?
Xerophile!
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Do all organisms on Earth follow these norms?
Oxyphile!
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Let me introduce you to…..
The Tardigrade
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This leads to the question….
Is what we define as extreme here on Earth……
actually “NORMAL” out there?
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ExploreOption #1: Handouts and PowerPoint
Option #2: Common Core focus • Reading in Science• Craft and Structure #4• Integration of Knowledge and Ideas #7, #8
• Writing in Science• Text Types and Purposes #1a, 1b, 1c, 1d, 1e• Research to Build and Present Knowledge #8, 9• Range of Writing #10
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Explain
=
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Elaborate
• Your Extremophile selection was based on a general description of Mars
• Earth has many unique environments
• Mars has many unique environments
• Let’s see if any of Earth’s Extremophiles could find a habitable place on Mars
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Elaborate
MISCONCEPTION ALERT!!
• Life has never been found outside of Earth
• We are looking for potential places of interest that “could” harbor Extremophiles
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Elaborate
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ElaborateSymbol Description:
• Can survive radiation of space
• Thrives in temperatures below 0°C
• Can be found in areas with minimal water
• Can be found in areas that are salty
• Typically found in neutral pH environments between 5 - 8
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Elaborate
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ElaborateSymbol Description:
• Exposed to the radiation of space
• Temperatures range from below 0°C to 40°C
• Very minimal or no water
• Area lacks salts or was not tested for salt presence
• Areas was not tested for pH, therefore pH is unknown
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Elaborate
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Evaluate• justify the reasons for their selection including our
understanding of life on Mars today;
• include critical information such as the abiotic materials that can be used to support the biotic environment;
• give examples of how the organism could potentially exist in that particular landing site specifically including genetic variations; and
• consider the potential for life not only in the present environment, but in past environments.
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Extend• Have students select extremophiles that could
potentially live on Mars and be producers for other extremophiles, acting in primary succession
• Use the Marsbound! activity found at http://marsed.asu.edu/lesson-plans-marsbound to have students plan a mission to Mars looking for extremophiles at their proposed landing site using Engineering Practices and the Iterative Design Cycle.