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 * Anticipated Length of Unit: ** ~ 40, 50-minute classes

//** In Unit 1 students explored the what a sustainable world might look like identified the key challenges that keep humans from securing a sustainable world. In this unit, the four care instructions for sustainability guide an closer examination of the challenges to sustainability. **// //** Systems analyses, mathematical modeling, biological models and remote sensing data are used to examine the challenges analytically and to evaluate possible responses that may support the goal of creating sustainability. **//

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** 2.1 Humans: Demand for Services **
The section begins with the story of population collapse following the overuse of natural resources on Easter Island. A physical simulation is paired with spreadsheet and Vensim modeling to develop a mathematical model that can be used to describe population dynamics. // Anticipated length: 7 50-minute classes //

> Marooned Part II - Island System [PowerPoint] > Models and Modeling [PowerPoint] > Spreadsheet Model -Blank [MS Excel] > Spreadsheet Model- CompleteMarooned Part II [MS Excel] 10. Island System Reporting Table [MS Word doc] 11. Vensim: Island System Student Instructions [MS Word doc] 12.Video – Introduction to Vensim [screen capture video .mov]
 * 1) Activity: Easter Island Teacher Notes [MS Word]
 * 2) Activity: Easter Island Timeline [MS Word]
 * 3) Activity: Easter Island Student Report Form [MS Word]
 * 4) Activity:
 * 1) Activity:
 * 1) Activity:
 * 1) Activity:
 * 1) Video : Introduction to Excel Spreadsheets [screen capture video .mov]
 * 2) Island Information  [MS Word doc]

** 2.2 Experimenting with Biological Model System **
This methods developed in section 2.1 are tested in a biological model -- yeast. Yeast that lives in an “ecosystem” in sourdough starter dough that includes competing and symbiotic organisms is able to sustain an equilibrium population for perhaps as long as 100 years whereas yeast given ample food and space grows exponential and then // Anticipated length: 7 50-minute classes //


 * 1) Lab: Yeast: Simple Population Dynamics Part I – Student Instructions [MS Word]
 * 2) Lab: Yeast: Simple Population Dynamics Part II – Student Instructions [MS Word]
 * 3) Activity: Population Growth Models Spreadsheet [MS Excel]
 * 4) Video: Secrets of Sourdough: Science on the Spot [Video Link]
 * 5) Video: Sourdough starter/yeast growth – time lapse 12 hours [Video]
 * 6) Lab: Sourdough starter sustainability
 * 7) Activity: Exploring Population Dynamics – Predator Prey Simulation [MS Word]

** 2. 3 Human Population - People Meeting their Needs **
The essential question addressed in this section is: What factors will affect population growth? This section examines patterns in human population dynamics that resemble the case of yeast isolated from normal controlling factors. However, future projections for human population growth predict a leveling off at 9 million. In a project using Gapminder World as their principle data source, students will explore possible explanations for this trend and consider the potential sustainability benefits of both the stabilizing of human population and the causes for that stability on sustainability // Anticipated Length: 7 50-minute classes //
 * 1) Activity : Studying Human Population Growth [.pdf and Excel]
 * 2) Activity : Using Excel [series of 3 screenshot videos .mov]
 * 3) Activity: What Will Limit Human Population Growth? Project [MS Word]
 * 4) Assessment: Rubric for Project [MS Word]

**2.4** **Reduce Dependance on Synthetic Chemicals that Persist in the Environment**
Humans are the only creatures that produce waste that cannot be reprocessed and used by other organisms. Are we creating too much waste to sustain the necessary ecosystem services that we need? Are there simple solutions for at least some of the non-biodegradable waste that we produce? In this section students consider the fate and accumulation of waste and our human footprint on the Earth and practice techniques for preventing and limiting the use of plastics in this context. //**Anticipated Length:** 5 50-minute sessions//
 * 1) Activity: The Majestic Plastic Bag and Dare County Ban [MS Word]
 * 2) Activity: The Majestic
 * 3) Activity: Student Worksheet for Let’s Talk Trash [MS Word doc]
 * 4) Lab: Marine Pollution and Rubber Duckies [MS Word doc]
 * 5) Activity: Google Earth Human Footprint on the Earth [MS Word]
 * 6) Lab: Evaluating Potential Human Impacts: Seawifs Activity (Remote Sensing) [MS Word]

**2.5** **Reduce Destruction of Nature**
In this section students consider some examples of resource consumption that produce lasting damage. Are there sufficient resources to supply human food, energy, water and construction needs while still leaving sufficient resources to support the health of the ecosystems that provide many of those essential services? In this unit students will consider resource recovery methods and their impacts. // **Anticipated Length:** 5 session of 50-minutes //

1 Activity: Mountain Top Removal (will be adapted from current post)[.pdf] 2. Pre and Post Lab: Black Ice [PowerPoint] 3. Pre and Post Lab: 4. Pre and Post Lab: Goodbye Glaciers video to embed in PowerPoint [.mp4] 5. Lab: Black Ice [MS Word doc ] 6. Lab: Black Ice - Setup Video [Video .mov] Earth/Environmental Science EEn.2.6.2 EEn.2.6.3 Chemistry Chm.1.3.2 Chm.1.3.3 7. Activity: Ecological Footprint (will be adapted from current post) [Powerpoint] 8. Activity: Ecological Footprint and I = PAT (will be adapted from current post) [.pdf]

**2.6** **Biomimcry - Nature Knows Best?**
The National Academy of Engineering identified learning from the sustainable design in nature to rethink and redesign products, building and other systems holds enormous promise for the future. In this section students will explore new inventions that have relied on the science of biomimicry for inspiration. They will learn about North Carolina high school students who used a lowly beetle as inspiration for an award-winning project to collect water from the air. They will explore biomimcry design to improve on that water collection system and examine seed pods for ideas for better attachment and fastening systems. // **Anticipated Length:** 5 sessions of 50 minutes //
 * 1) Video: Janine ???? TED Talk – Sustainability [Video]
 * 2) Activity: 14 Best Inventions Using Biomimcry [MS Word]
 * 3) Activity: 14 Best Inventions Using Biomimcry Teacher Notes [MS Word]
 * 4) Lab: Learning from Water’s Nature Harvester [MS Word]
 * 5) Lab: Velvet Hook [MS Word]
 * 6) Assessment: Lab Abstract Rubric [image of MS Word Doc]