Water Research Network
Self-described as a "multidisciplinary database of research, researchers, and institutions dealing with fresh water issues all over the world," the Water Research Network (WRN) is a product of collaboration between the University of Bergen, Norway, the Norwegian Research Council, and the Government of the Netherlands. Active since October 2001, WRN invites researchers from various disciplines to submit information about their water research projects (free registration is required). While the sit
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The Physics Classroom
Hosted by Study Works Online and written by science teacher Tom Henderson, The Physics Classroom is an online physics tutorial written for high school physics students. Through individual lessons and accompanying quizzes, this very informative site includes a physics tutorial that covers everything from Newton's Laws to Refraction. The Multimedia Physics Studio portion of the site gives excellent animations and movies that allow students to reinforce their learning by visualizing what is being d
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Magplane: Transportation for the Information Age
The Magplane concept involves electromagnetically levitated vehicles designed for fast intra-city travel. This is in contrast to most other systems that focus on intercity travel; the goal of the Magplane system is to connect suburbs and locations up to 250 miles from a central metropolitan area, with travel times of about an hour or less. The Magplane home page offers many details of the system's design and operation. Five technical papers are also presented, which describe some of the engineer
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Forensic Engineering
The National Academy of Forensic Engineers (1) provides a short definition of forensic engineering as: "the application of the art and science of engineering in matters which are in, or may possibly relate to the jurisprudence system, inclusive of alternative dispute resolution." Specialty areas in forensic engineering include fire investigation, industrial accidents, product liability, traffic accidents, civil engineering and transportation disasters, and environmental systems failures. For exa
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Physical Science Information Gateway: Training
Another helpful resource from the Physical Science Information Gateway (last mentioned in the September 14, 2001 Scout Report , the Training Web site contains "free "teach yourself" Internet tutorials aimed at students, researchers and other members of staff who want to get the most out of the Internet". The topics covered include chemistry, earth science, physics, and the history and philosophy of science. Users get to tour key internet sites on each of the general topics, learn how to search f
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Soap and Bubbles
The first Web site, from The Soap and Detergent Association, is called Soaps and Detergents (1). Visitors learn about the chemistry of soap and detergent, their history, how they're manufactured, and more. The easily read text and fun illustrations make this site a great place to start for this topic. The next site, called Bubble Engineering (2), is provided by Bubble Town. The page describes the physics of a cone-shaped bubble blowing device and how its shape reduces the velocity of air being b
Author(s): Brieske, Joel A.

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Top500 Supercomputer Sites
Twice a year, the Top500 Project releases a list of the 500 sites with the most powerful supercomputers. The purpose of the list is "to provide a reliable basis for tracking and detecting trends in high-performance computing." The latest version was unveiled in June, and this site examines some of the most important developments and newcomers to the list. Most important is the recently constructed Earth Simulator in Japan, which was rated almost five times more powerful than second place. Additi
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America's Backyard: Exploring Your Public Lands
America's Backyard: Exploring Your Public Lands is the featured topic of National Geographic's Geography Action! -- an "annual conservation and awareness program designed to educate and excite people about our natural, cultural, and historic treasures." This Web site offers a number of public land-related educational activities, many of the which apply directly to the life sciences. Activities are available for grades K-12, and cover such topics as the role of forests in our daily lives, conserv
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probeBase
The Microbial Ecology Group of Munich's University of Technology has recently launched probeBase, "a comprehensive database containing published rRNA-targeted oligonucleotide probe sequences, DNA microarray layouts and associated information." Users may search for sequences by target organism, which "can assist in the development of new rRNA-targeted oligonucleotide probes for fluorescence in situ hybridization (FISH)," or by probe name for rapidly retrieving published probes targeting desired s
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Amazing Earth Games: Disasters You Can Play at Home
Another above average offering from Discovery.com, the Amazing Earth Games: Disasters You Can Play at Home Web site does a great job at making learning fun. The interactive activities include: Crumble California, in which users get to see how the continental plates have affected the state; Unleash a Superstorm, which lets you create your very own hurricane; and the Destroy Life on Earth activity, which gives you the power to launch fireballs at our planet and witness the result. A great site for
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Japanese Ant Image Database
The 2003 revised edition of the Japanese Ant Image Database was developed under the direction of the Japanese Ant Database Group (JADG). The website, which merges taxonomic information and stunning photographs, will no doubt delight myrmecologists and others. Information about different types of ants can be accessed through browseable, hyperlinked lists organized by subfamily, genus, and species. Genus and species profiles include images, references, descriptive information, simple distribution
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Atlas of the Breeding Birds of Ontario
Hosted by Bird Studies Canada, this site contains an online version of the _Atlas of the Breeding Birds of Ontario_, a publication based on information collected between 1981 and 1985 involving "the efforts of over 1,300 volunteers who collectively carried out more than 180,000 hours of field work." The Atlas was published in 1987 by the Long Point Bird Observatory and the Federation of Ontario Naturalists. The site is nicely laid out with a hyperlinked Table of Contents which connects visitors
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Urban Wildlife
The city is often characterized as the antithesis of wilderness. At the same time, many urban areas are home to large populations of various wild animals. In an effort to learn more about the animals living in our midst, this Topic in Depth takes a look at websites concerned with urban wildlife. The first (1) site, from Urban Wildlife Rescue, briefly describes problems related to trapping and relocating wild animals. The site also offers Humane Eviction suggestions for squirrels, foxes, raccoons
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systems of linear equations
Solve a system of linear equations by graphing and finding the intersection of the lines of the equations. Create a system of equations, examine its graph, matrix, and table of values, and determine the solution of the system.
Author(s): ExploreMath.com,Brian Sharp

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Copyright 1999-2001 ExploreLearning.com All Rights Reserved.

Compound Independent Events
Compare the theoretical and experimental probabilities of compound independent events by drawing colored marbles from a bag. Record the results of successive draws with or without replacement of marbles to calculate the experimental probability.
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The secret life of the brain
This web site was developed to accompany the PBS television series The Secret Life of the Brain, which explores how the human brain develops and changes from infancy through late adulthood. Among the site's features are a timeline of human knowledge of the brain, an interactive three-dimensional brain model, and illustrated descriptions of various brain scanning techniques. There are also sections devoted to each episode of the TV series that provide an overview of the episode, brief video clips
Author(s): David Grubin Productions,Thirteen/WNET New York

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Copyright 2001 Educational Broadcasting Corporation and David Grubin Productions, Inc. All rights reserved.

Weather in Antarctica
This homepage includes information about the weather in Antarctica and links to pages on the climate, wind chill, clouds, snow and ice, and pressure and storms of Antarctica. The current weather conditions updated automatically at various stations are also provided.
Author(s): Thomas Hutchings

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Antarctic connection.com

LEARN
LEARN was created to increase middle school science teacher knowledge of and interest in the atmospheric sciences. The original project began in 1991 with funding from the National Science Foundation (NSF). Much of the instructional and science content foundation for the LEARN workshops came from the teaching modules developed by LEARN teachers in collaboration with more than 60 National Center for Atmospheric Research (NCAR) scientists. The modules (Ozone in Our Atmosphere, Atmospheric Dynamics
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Copyright 2000-2001 University Corporation for Atmospheric Research. All Rights Reserved.

Perimeter explorer
This activity is designed to engage the student in an exploration of the perimeter of shapes formed by adjacent squares on a grid. After the student selects an area, the Java applet generates a closed figure with that area. The student enters the perimeter of the figure, and the answer is checked automatically. The applet limits figures to rectangles and generates two column comparisons of areas and perimeters for multiple figures. From the activity page, What, How, and Why buttons open pages ex
Author(s): Shodor Education Foundation

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Copyright 1997-2004 The Shodor Education Foundation, Inc.

Science Sampler : Hypothesis-based learning
Are visions of students hypothesizing, designing experiments to test their explanations, analyzing data, writing formal publications of results, and debating over scientific procedures in an attempt to justify their control of variables dancing in your head? This dream can become a reality when you implement hypothesis-based learning (HBL) into your science curriculum. Follow the suggestions found in this article to put your dream in motion, and wake-up to a classroom teeming with motivated, on-
Author(s): Kaley Fore

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Permission to reproduce content is granted in advance under the following circumstances: (1) All educators may reproduce up to five copies of an NSTA article for personal use only. This does not inclu