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State of the World's Forests 2003
The Food and Agriculture Organization of the United Nations presents this biannual report on the status of the world's forests. Available as a series of downloadable documents, this comprehensive report addresses recent developments in the forest sector such as agricultural expansion and mangrove conversion, conservation and sustainable development, forestry education and other institutional concerns, international policy, and other issues.
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The Encyclopedia of Astrobiology, Astronomy, and Spaceflight
Visitors can learn astonishing facts in historical astronomy, astrobiology, astrophysics, space missions, and many more space science topics at this comprehensive website. David Darling, a British astronomer and science writer, provides straightforward explanations of seemingly difficult concepts. In addition to an easily navigable alphabetical list and a keyword search, the encyclopedia is interlinked so that users can easily progress through the materials. The website also features the latest
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Partnerships to Advance Learning in Science: Java Simulations
Provided by Iowa State University, the Partnerships to Advance Learning in Science: Java Simulations Web site contains several interactive science simulations. Visitors can explore advection, the energy budget, adiabatic processes, and radiation. For example, the mountain simulation teaches about adiabatic processes by allowing users to adjust various parameters such as temperature, dew point, mountain slope, and cloud base altitude. The simulation then blows a leaf over the mountain and moves i
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Consensus CoDing Sequence Database
The Consensus CoDing Sequence (CCDS) Database "project is a collaborative effort to identify a core set of human protein-coding regions that are consistently annotated and of high quality. The long-term goal is to support convergence toward a standard set of gene annotations on the human genome." CCDS project collaborators include the National Center for Biotechnology (NCBI), European Bioinformatics Institute (EBI), Wellcome Trust Sanger Institute (WTSI), and University of California, Santa Cruz
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ARS Water Database
From the Hydrology and Remote Sensing Laboratory of the USDA Agricultural Research Service (ARS) comes the ARS Water Database Web site. The database is a collection of precipitation and streamflow data from small agricultural watersheds in the United States, including variable time-series readings sufficient in detail to reconstruct storm hydrographs and hyetographs. Users can choose from any US state to view available data. Each station is listed along with its location, coverage area in acres,
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PSRC: Physical Sciences Resource Center
Developed by the American Association of Physics Teachers, "the Physical Sciences Resource Center (PSRC) is a web-based databank that provides K-20 teachers links to a wide range of teaching and learning resources in the physical sciences." Users can search the numerous resources by topics, type, or keyword. With each entry, the website provides a description, information on the author, subjects covered, level, intended users, resource types, possible costs, and other useful facts. Interested in
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National Estuaries Day
Get the most out of National Estuaries Day (October 5, 2002) by visiting this Web site from the National Oceanic and Atmospheric Administration (NOAA). Follow a link to Estuary Live!, which offers online interactive fieldtrips through a number of estuaries around the nation. Guided tours of eight estuaries will be webcast live October 3 and 4, supplemented by videos from a number of other estuaries. Internet participants "will have an opportunity to see the fascinating creatures that make estuar
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Genome@home
With Genome@home, a project at Stanford University, computer owners can become de facto researchers in virtual genome protein design. By downloading and running the Genome@home protein sequence design client, users lend their idle computer time to run calculations for use with such projects as designing new medical drugs, understanding protein evolution, and determining the function of newly sequenced genes. The program can run during other applications without affecting computer performance. Th
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What's New at Sci4Kids
The Agricultural Research Service (ARS) of the US Department of Agriculture offers its latest set of brief but engaging educational activities for kids in this Web site. The recently added feature, No Horsin' Around With These Tests!, introduces immunological concepts in the kid-friendly guise of a story about horses. Two older features are also available, one on using a biocontrol method to combat dry rot fungus in potatoes and another on mites. While these subjects may not at first appear to b
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Vision Systems Design
Vision Systems Design is a magazine that provides comprehensive information and analyses about "machine-vision and imaging components, boards, assemblies, software, and systems." Its online version is free and has many Web-exclusive features available. For example, Back to Basics is a series of technical articles about a certain topic; the February 2003 issue has articles on FireWire interfaces, infrared systems used to increase vehicle safety, and much more. Technology news and industry trends
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The AT&T Learning Network Community Guide
In an effort to help individuals and communities realize the importance of the Internet, AT&T created the Learning Network Community Guide. The guide consists of many different resources, and it serves a variety of purposes. Two Internet introductions, separated into student and teacher versions, can be used to maximize use of Web tools, newsgroups, and other online services. Other sections of the site suggest ways to raise community awareness of information technology (IT) and facilitate access
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Karbosguide.com
A prodigious author of computer science books presents several introductions to computers and computer-related technologies at this site. Eight different guides are available, which cover topics including digital data, motherboard logic, and the computer input/ output interface. The text and accompanying illustrations are not overly technical in nature, and are therefore suitable for almost any audience. A section on digital imaging is under construction as of March 2003; it has information on p
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MDAlink
Although US plans for missile defense have somewhat been taken out of the spotlight, the Missile Defense Agency homepage offers relatively current news and press releases. Perhaps the most interesting features of the Web site, from a scientific perspective, are the introduction and fact sheets that describe how missile defense works. Several documents are available for download, which address engineering and technical issues associated with the system's design. They discuss the basic operation a
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SecurityFocus Online
This news service from SecurityFocus is an excellent resource to learn about important computer security warnings and alerts. The Web site keeps track of many widely used software applications, while reporting known vulnerabilities as they are found. Viruses and worms are another key topic that receives significant attention. Several columns offer expert advice and tips to efficiently use and understand software for different platforms. Government security is covered in the news section, discuss
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Ozone depletion interactive lab
What is the process by which CFCs destroy ozone? This informational piece, part of an interactive laboratory series for grades 8-12, explores the destruction of the ozone layer by chlorofluorocarbons. Here students view a four-step animation that shows how ultraviolet light breaks chlorine free from a CFC molecule. The chlorine then destroys an ozone molecule. Additional steps show how the process can be continuous. Copyright 2005 Eisenhower National Clearinghouse
Author(s): University of Utah. Astrophysics Science Project I

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Copyright 2003, University of Utah. All rights reserved.

Desk Top Stars
This module designed for middle school students uses simple, fun experiments to introduce some tools and concepts of astronomers. Students are asked to consider how astronomers answer questions like: How old is the Universe? How far away is a galaxy? What are stars made of? The exercise includes working with a simple spectrometer. This unit may be easily modified for other students.
Author(s): Jeff Wilkerson

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Copyright and Other Restrictions Information Is Unknown.

Soil as Living Skin
In this two-minute radio program, a soil scientist introduces listeners to reasons why soil is crucial to the planet. The scientist lists functions of soil that include nutrient cycling and water filtration, and he also uses living skin as an analogy for soil. The program, part of the Pulse of the Planet radio show, is available here in text and audio formats. Copyright 2005 Eisenhower National Clearinghouse
Author(s): Pulse of the Planet

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Copyright 2004 Jim Metzner Productions, Inc. All rights reserved.

Thinking involving very large and very small quantities
Intuitively a million is a lot more like a billion than ten is like one hundred, because our intuition has some grasp of ten and one hundred, but we have little grasp of what millions and billions involve. Fortunately, there is often a way to make intelligent decisions involving big quantities. Use arithmetic! Typically we don't need more than multiplication and division to put things into terms we can deal with. If we are unwilling or unable to do the calculations, we should at least recog
Author(s): Bob Korn

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Robert Korn 2005

Microbes : too smart for antibiotics?
This lesson packet builds on a peer-reviewed article about antibiotic resistance in microorganisms. The packet contains discussion questions about the article, instructions for an activity about hand washing that uses fake, fluorescent 'germs,' and two handouts of ideas for student activities. The first handout is appropriate for general biology students, and the second is designed for advanced, AP, or first-year undergraduate students. In many of the activities, students create a product, such
Author(s): Peggy Deichstetter

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Copyright 2004, American Institute of Biological Sciences.

National Gardening Association
This is the homepage of the National Gardening Association, a nonprofit organization established to help gardeners, and to help people through gardening. The Web site contains loads of garden-related information, including over 2,000 articles, 30,000 FAQs, seed swap programs, a zone finder, pest control library, and much more. The site does advertise some retail items, but all information in this extensive online resource is available free of charge.
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