The Goldilocks Zone
http://www.challenger.org/teachers/tmitn/tmitn.cfm?tmitn_id=8&moment_id=43

Teachable Moments in the News, Challenger Center for Space Science Education, www.challenger.org


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This is an article from "Teachable Moments in the News," a newsletter that takes recent Earth and space science related news stories and places them in a context relevant to the science curriculum. This particular edition describes the Goldilocks Zone, a range of environmental conditions that can support life. Teachers are provided a brief introduction, relevant news links, and developed lesson plans. Some lessons are in PDF format. Activity themes include: exploration of environmental conditions necessary to sustain life, physical and behavioral adaptations of organisms, and identification of resources on Earth that are essential for life to thrive.

This resource is referenced here:
Subject: Biology:Ecology:Symbiotic Relations:Mutualism, Biology:Ecology:Principles, Metabolism, Biology:Evolution:Patterns, Biology:Microbiology, Astrobiology
Resource Type: Scientific Resources:Overview/Reference Work, Activities:Lab Activity, Classroom Activity
Grade Level: High School (9-12), Intermediate (3-5), Middle (6-8), Primary (K-2)
Extreme Environments: High Pressure, High Radiation, Anoxic, Hypersaline, Anhydrous, Alkaline, Extremely Hot, Acidic, Extremely Cold
Topics: Biosphere:Ecology:Metabolism, Abiotic Relations, Habitats, Biosphere:Microbiology, Ecology:Principles, Biosphere:Astrobiology, Evolution:Patterns