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.
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Climate Reconstructions
The NOAA Paleoclimatology Program archives reconstructions of past climatic conditions derived from paleoclimate proxies, in addition to the Program's large holdings of primary paleoclimatic proxy data. The site includes reconstructions of past temperature, precipitation, vegetation, streamflow, sea surface temperature, and other climatic or climate-dependent conditions. Users can access air temperature, hydroclimate, circulation and ocean data. This is a very comprehensive archive of paleoclima
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FoilSim and CurveBall
FoilSim II computes the theoretical lift of a variety of airfoil shapes. The user can control the shape, size, and inclination of the airfoil and the atmospheric conditions in which the airfoil is flying. The program includes a stall model for the airfoil, a model of the Martian atmosphere, and the ability to specify a variety of fluids for lift comparisons. The program has graphical and numerical output, including an interactive probe which you can use to investigate the details of flow around
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Middle School Portal: Math and Science Pathways (MSP2)
The Cells Alive Web site (last mentioned in the October 25, 1996 Scout Report), offered by Quill Graphics, contains several activities to help students understand the basics of cellular biology. The animal cell cycle and cell mitosis animations are especially excellent visual learning tools, clearly showing what takes place during these events and giving well-written descriptions of each stage. The site also has three interactive quizzes on cell structure, cell function, microbes, and the immune
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Middle School Portal: Math and Science Pathways (MSP2)
This virtual manipulative with an interactive three-circle Venn diagram can be used to model set operations for union, intersection, and subset. For each statement, the student uses an onscreen paint function to find and highlight the region that is the solution. The student can click a button to find out if his or her solution is correct. In addition to the manipulative, there are 13 progressively more difficult logic statements to challenge the student. Instructions for use and a link to the N
Author(s): Utah State University. National Library of Virtual

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Copyright 2003 Utah State University. All rights reserved.

Middle School Portal: Math and Science Pathways (MSP2)
This web site contains descriptions and links to more than 60 virtual manipulatives, activities designed to function as concept tutorials. The virtual manipulatives, mostly in the form of Java applets, are designed to facilitate grades 6-8 mathematics learning. By encouraging active student exploration with computers, the virtual manipulatives can help students visualize mathematical relationships. They are organized into five categories based on the National Council of Teachers of Mathematics (
Author(s): Utah State University. National Library of Virtual

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Copyright 2003 MATTI Associates LLC. All rights reserved.

Cotton: Building a Better Plant
Plant genome research is already revolutionizing the field of biology. Currently, scientists are unlocking the secrets of some of the most important plants in our lives, including corn, cotton and potatoes. Secrets of Plant Genomes: Revealed! takes viewers on a lively, upbeat journey that explores how these plants got to be the way they are and investigates how we can make better use of them in the future. Plant scientists are hard at work--in the lab, in the field and at the computer--to increa
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Corn: The Dynamic Genome
Plant genome research is already revolutionizing the field of biology. Currently, scientists are unlocking the secrets of some of the most important plants in our lives, including corn, cotton and potatoes. Secrets of Plant Genomes: Revealed! takes viewers on a lively, upbeat journey that explores how these plants got to be the way they are and investigates how we can make better use of them in the future. Plant scientists are hard at work--in the lab, in the field and at the computer--to increa
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Field Journal: Field Journals
This online activity is part of the museum's Online Field Journal Web site, where young children can explore the wonders of nature with the help of an adult. Here, they get guidance about how to observe nature with printable field journal pages. On the opening page, the 11 field journals are listed: Seashells, Birds, Insects, Butterflies, Rocks, Leaves, Animal Tracks, Reptiles, Flowers, Fish, and Spiders. The first page of each field journal activity includes instructions designed to focus the e
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Symptoms of Posttraumatic Stress Disorder in a New Orleans Workforce Following Hurricane Katrina
On August 29, 2005, Hurricane Katrina made landfall resulting in catastrophic damage and flooding to New Orleans, LA, and the Gulf Coast, which may have had significant mental health effects on the population. To determine rates and predictors of symptoms consistent with a diagnosis of posttraumatic stress disorder (PTSD) in New Orleans residents following Hurricane Katrina, we conducted a web-based survey 6 months after Hurricane Katrina made landfall. Participants included 1,542 employees from
Author(s): DeSalvo, Karen B.,Hyre, Amanda D.,Ompad, Danielle

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Intersecting Isograds at Whetstone Lake
This 15-slide PowerPoint presentation takes the viewer through a real life investigation of metamorphic terrane consisting of pelitic and calcareous rocks. The investigation includes recognition of 5 reactions that take place in the area. P-T, AFM, and T-X diagrams provide visual tools used to assess the conditions under which the metamorphic rocks formed. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
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Granitoid Rocks
This 16-slide PowerPoint presentation discusses the characteristics of granitoid rocks including geographic occurrence, rare earth elements, enclave characteristics, pressure-temperature conditions, the influence of water, and tectonic setting. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
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Boston's Arnold Arboretum: A Place for Study and Recreation
provides readings, maps, and lesson ideas about the first arboretum in the U.S., which opened to the public in the 1880s. This site, though focused on a place devoted to the study of trees, can help students learn how 19th-century urban conditions influenced the development of parks and how to research the history of parks in their own communities.
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To listen, speak, grammar: Wir suchen ein Zimmer.
In this lesson you will learn how to verbally inquire about a hotel room, book a hotel room. You will practice the function of the different segments in a sentence.
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The Olympic Region Harmful Algal Blooms
This is the website of the Olympic Region Harmful Algal Bloom (ORHAB) partnership, which was organized to develop collaboration and cooperation among federal, state and local management agencies, coastal Indian tribes, marine resource-based businesses, public interest groups, and academic institutions. The ORHAB partnership investigates the origins of blooms of toxic algae, monitors where and when the blooms occur, assesses the environmental conditions conducive to blooms and toxification of int
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The Goldilocks Zone
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 condition
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Water Vapor Protocol
The purpose of this activity is to measure the total precipitable water vapor (column water vapor) in the atmosphere above an observer's site. Students point a GLOBE/GIFTS water vapor instrument at the sun and record the voltage readings from a digital voltmeter. They observe sky conditions near the Sun and perform the Cloud Protocols. Intended outcomes are that students understand the concept that the atmosphere prevents some of the sun's light from reaching Earth's surface, how water vapor mea
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Soil: The Great Decomposer
The purpose of this resource is to understand that soil, under different environmental conditions, plays a role in the decomposition of organic materials. Students use bottle experiments to observe changes in the decomposition of vegetable scraps. Students vary temperature, moisture, and light conditions to determine the conditions that best facilitate the decomposition of organic material in soil.
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Hurricane Katrina Impact Studies
This website is a cooperative research project between the U.S. Geological Survey (USGS), NASA, the U.S. Army Corps of Engineers, and the University of New Orleans. The goal of the project is to investigate coastal change that occurred as a result of Hurricane Katrina. The site includes aerial video, still photography, and laser altimetry surveys of post-storm beach conditions that were collected August 31 and September 1, 2005 for comparison with earlier data. The comparison data can be used to
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Geothermal Energy and Geysers
This web page, created by the US Energy Information Administration, gives a description of geysers, where they are found, the conditions that create them, and the process of their eruptions. The geysers of Yellowstone National Park are described as the best collection of geysers in the world. The author notes that geothermal energy can be derived from geyser fields, but geothermal electricity production depletes the geysers' water and removes some of the available heat, reducing and sometimes de
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