Daisyworld Stella Activity
Daisyworld model is a very simple planet that has only two species of life on its surface - white and black daisies, and bare ground. Daisyworld is a good example of homeostasis and was first proposed by James Lovelock as a plausible example of his Gaia hypothesis. The Daisyworld activity helps students build a Stella model of Daisyworld from scratch. After constructing the model they perform guided experiments to explore the behavior of Daisyworld to changes in model parameters and assumptions.
English - Subject/Verb Agreement
A short video on subject/verb agreement; includes examples and a tip/trick to help remember which verb (singular or plural) is appropriate for compound subjects. * Note - Instructor writes "Mark" in an example, but says "Mary". (Minor discrepancy that does not effect the content.)
Climate Monitoring and Diagnostic Laboratory: Carbon Cycle Greenhouse Gases
The National Oceanic and Atmospheric Administration Climate Monitoring and Diagnostic Laboratory Carbon Cycle Greenhouse Gases group makes ongoing discrete measurements from land and sea surface sites and aircraft, and continuous measurements from baseline observatories and tall towers. These measurements document the spatial and temporal distributions of carbon-cycle gases and provide essential constraints to our understanding of the global carbon cycle. This website is an interactive atmospher
Climate Impact of Quadrupling Atmospheric CO2: An overview of GFDL Climate Model Results
In this report, the Global Fluid Dynamics Laboratory Climate Research Group examines the possible climate impacts of quadrupling atmospheric CO2. Several impacts are discussed, surface air temperature warming, sea level rise, thermohaline circulation changes, mid-latitude summer drying, heat index and temperature increases and possible changes in tropical storms and El Nino. This site provides a nice written overview and images regarding changes in climate and oceans due to increased CO2.
Calibrated Peer Review: Petroleum Geology of the Persian Gulf Region
In this assignment, students explore the origin and distribution of oil and gas in a region of global significance. Also included are the geologic history and the socio-political and environmental issues associated with hydrocarbon exploration and production. Students then walk through an online case study and write an essay addressing important points that they have learned. The Calibrated Peer Review interface is then used to give feedback on the essays. On this Starting Point page, users can
Car wash sequence from 'Easy Living'
'Easy Living' follows the movements and activities of individuals represented by miniature objects, most notably the kinds of dolls, locations, and accessories affiliated with model construction. This miniature suburban world traces a typical day in suburbia. Shown here is a short excerpt of a car as it progresses through a miniature car wash.
Annie Johnson
Fritz Wetherbee reports that Annie Johnson (Boston resident) will receive the Living Legacy Award in Washington DC. Wetherbee reports that Johnson grew up in Boston and organized domestic workers through the Women's Service Clubs of Boston in the 1960s. Wetherbee notes that Johnson led the workers on a campaign for benefits. Wetherbee interviews Johnson in her home. Johnson talks about the importance of helping others. Johnson discusses her relative, Eleanor Graves Chandler, who was an early com
Who Can Live Here? Life in Extreme Environments
Astrobiology in the Classroom leads students in the exploration of the limits of life on Earth to extend their beliefs about life to include its possibility on other worlds. In this four-part activity, students first explore the environments of several mammals and birds to better understand how living things and their environments interact and depend on each other. In the second part, students match bacterial types with their more extreme environments. Students discover that an environment's tem
EO Global Warming
Earth Expeditions: Global Warming has been designed to provide students with an interactive multimedia environment where they can learn about the causes and possible effects of the rise in concentrations of carbon dioxide in the atmosphere for more than a century. How will Earth’s environment be affected if this rise continues over the next century? The multimedia package provides background information about radiation from the Sun and Earth, the Earth’s energy balance, and the greenhouse ef
Earth Explorers Series
Who Are NASA's Earth Explorers? The elementary school student questioning if El Nino occurs anywhere besides the Pacific Ocean... The researcher investigating connections between Arctic ozone depletion and global climate change... The consumer comparing hydrocarbon versus hydrogen-powered cars... And the business person projecting future needs for harvest, delivery, and storage of crops... All of these people are Earth Explorers -- they are all connected by their curiosity about Earth system pro
NASA Earth Observatory Mission: Biomes
This fun, interactive website was designed by NASA's earth observatory to introduce students to the Earth's Biomes. A biome, as defined by the site, is a community of plants and animals living together in a certain kind of climate. This website provides links to seven different biomes that students can learn about including coniferous forests, grasslands, and tundras. Each separate biome page contains a brief general description as well as basic information about characteristics such as Temperat
Muscles and Bones
Muscles and Bones offers teachers 10 activities that help students understand how the body's muscles and bones work. The activities in this guide help students explore important questions related to muscles and bones in living things; such as: Do you know which foods have lots of calcium for your bones? What are you doing to keep your muscles strong? and How do your bones and muscles work together?
Nutrition, Inequality and Agriculture: Contested Models of Degenerative Disease in Chiapas, Mexico
The industrial agro-food system has had two significant impacts on world public health: deteriorating human and animal nutrition due to poor food quality and the emergence of new infectious diseases arising from industrial animal production facilities and centralized food processing facilities. This situation is widely misrepresented in media coverage of public health issues. The corporate food system promotes the consumption of high levels of animal protein and processed foods
Organization for Economic Co-Operation and Development (OECD)
The OECD groups 30 member countries sharing a commitment to democratic government and the market economy. With active relationships with some 70 other countries, NGOs and civil society, it has a global reach. Best known for its publications  and its statistics , its work covers economic and social issues from macroeconomics, to trade, education, development  and science and innovation. The site provies a myriad of resources on international econonmic development.
WolfQuest
Learn about wolf ecology by living the life of a wild wolf in Yellowstone National Park. Play alone or with friends in on-line multiplayer missions, explore the wilderness, hunt elk, and encounter stranger wolves in your quest to find a mate. Ultimately, your success will depend on forming a family pack, raising pups, and ensuring the survival of your pack. The WolfQuest experience goes beyond the game with an active online community where you can discuss the game with other players, chat with w
Livingeconomics – an instructor-customizable microeconomics principles textbook
Living Economics provides real-world stories, cutting-edge Flash animations, test banks, and online lectures for economic teachers to customize their own principles textbooks. It is intended to serve primarily those teachers who have been searching for a principles textbook that teaches economic concepts from real-world stories instead of widgets. Living Economics is inspired by the time-honored practice of learning languages through immersion rather than remembering grammatical rules.
How to accelerate your Internet
Access to sufficient Internet bandwidth enables worldwide electronic collaboration, access to informational resources, rapid and effective communication, and grants membership to a global community. Therefore, bandwidth is probably the single most critical resource at the disposal of a modern organisation. The goal of this book is to provide practical information on how to gain the largest possible benefit from your connection to the Internet. By applying the monitoring and optimisation techniqu
Energyville
It's up to you to provide enough power to meet the energy demands of your city's 3.9 million people while keeping them prosperous, secure, and living in a clean environment. The implications of the energy decisions you make today for your city in 2015 are based on the current lifestyles and the projected energy demands and costs for developed countries throughout North America, Europe and Asia.
Dynamic Remodeling of Individual Nucleosomes Across a Eukaryotic Genome in Response to Transcription
The eukaryotic genome is packaged as chromatin with nucleosomes comprising its basic structural unit, but the detailed structure of chromatin and its dynamic remodeling in terms of individual nucleosome positions has not been completely defined experimentally for any genome. We used ultra-high–throughput sequencing to map the remodeling of individual nucleosomes throughout the yeast genome before and after a physiological perturbation that causes genome-wide transcriptional changes. Nearly 80%
Bioterrorism: plague as a biological weapon
Bioterrorism is the utilization of microorganisms or toxins in order to produce a disease and/or death in human beings, animals or plants. Different from conventional weaponry, relatively economic means are used that allow the elimination of living beings without destroying the surrounding atmosphere. The most probably method for spread of bioweapons is aerial transmission, continuing into water supplies and food. The CDC (US Centers for Disease Control and Prevention, Atlanta) has subdivided in
