It’s Just Right: Extremophiles

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As scientists look for life elsewhere, we become more aware that life is tenacious and can survive in extreme environments. Some organisms on Earth can withstand extremes of temperature by shutting down their energy needs. In this activity, students set up an experiment to determine yeast’s temperature tolerance extremes. Students will put granules of yeast and sugar into containers. By varying the temperature of the water added and recording the amount of gas as demonstrated by the balloon inflation diameters, the students observe the relationship between temperature and metabolism. This is part of Fingerprints for Life, an online educational resource about Astrobiology.

Tags: multi-cellular, extreme temperature, extremophiles, gas production, yeast, metabolism, solar system, microbe, astrobiology

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NASA Approved Materials

Grade Level4 - 6
Media TypeURL
File Size 6KB
Topics Biology
Life Science
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