Bush Cites Need to Develop Affordable Hydrogen-Powered Fuel Cells
In his State of the Union Address on January 28, 2003, President Bush made a case for further fuel cell development. Current efforts in this area have not determined how to efficiently produce or extract hydrogen for the cells. In hopes of solving this problem, Bush proposed a $1.2 billion FreedomFUEL initiative. The first site discusses the initiative and its potential to create a nearly pollution-free method of electricity generation.
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Avocado Information
To borrow shamelessly from Benjamin Franklin, guacamole is proof that God loves us and wants us to be happy. The Agricultural and Natural Resources people at the University of California-Riverside would seem to agree. In this Web site devoted solely to the lovely avocado, readers can learn all about the history and horticulture of this subtropical fruit (that's right -- fruit). Features include time-lapsed videos of avocado flowering, another video on how to correctly prune a small avocado tree,
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Reproductive & Cardiovascular Disease Research Group
The Reproductive & Cardiovascular Disease Research Group is "based in the Department of Biochemistry and Immunology at St. George's, University of London." The Group's "research interests include a number of areas concerned with reproductive and cardiovascular diseases such as trophoblast biology, nitric oxide and apoptosis, with particular emphasis on the role of these subjects in diseases of pregnancy such as pre-eclampsia." This website contains descriptions of protocols commonly utilized by
Author(s): Dash, Phil.

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University of Newcastle upon Tyne: Department of Statistics
The Department of Statistics at the University of Newcastle upon Tyne has an impressive Web site with a lot of good research information. The Research section of the site is divided into five different group areas, consisting of applied statistics, applied probability, medical statistics, Bayesian statistics, and bioinformatics. Each of these has a statement of the work performed and a list of recent publications. The Postgraduate Study section discusses a number of research projects currently u
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Earth Today: A Digital View of our Dynamic Planet
Earth Today: A Digital View of our Dynamic Planet is offered by the Smithsonian Institution's National Air and Space Museum and is described as a "state of the art digital theater that's updated several times daily to show near real-time satellite views of the Earth's atmosphere, oceans, and landmasses." The Our Dynamic Earth section contains several topics, such as The Atmosphere, in which users can read about the subject and see impressive satellite images and animations of Earth from space. T
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Herpetologists' League
Founded in 1936, the Herpetologists' League (HL) "exists to promote scientific study and conservation of amphibians and reptiles. The primary goals of the League are to support the acquisition of knowledge about these organisms, and to transmit that knowledge through publications, conferences, and symposia." Hosted by the Illinois Natural History Survey, the HL website contains contact information for current League Officers, as well as information about membership, and the upcoming Joint Meetin
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PBS-American Field Guide: Primary and Secondary Succession in America's Forests
From PBS-American Field Guide, this website offers high school educators a multimedia lesson plan on Primary and Secondary Succession in America's Forests. The lesson plan utilizes hyperlinked video clips to introduce students "to several different North American Forests while learning about concepts associated with succession in both natural and disturbed environments." The site contains descriptions of two 30-minute, in-class activities, as well as a slightly longer outdoor observation activit
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Atmospheric Processes : Conduction
After participating in this activity, students will be able to explain the process of conduction using a molecular model and explain that different materials conduct at different rates. They will also be able to identify air as a poor heat conductor (an insulator). The instructor guide contains detailed background material, learning goals, alignment to national standards, grade level/time, details on materials and preparation, procedure, assessment ideas, and modifications for alternative learne
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The source of this material is Project Learn at the University Corporation for Atmospheric Research (UCAR). References herein to other Web pages, which may be linked to this site, specific commercial

Observe images of different climate zones
This Earth science resource shows students the location of 10 different climate zones on a world map. Red dots mark the location of deserts, highlands, and ice caps, as well as tundra, tropical wet and dry zones, and subtropical areas. Students are instructed to click on each red dot to see a photograph from that region. Each photograph includes a caption that describes its location. Copyright 2005 Eisenhower National Clearinghouse
Author(s): TERC. Center for Earth and Space Science Education

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Using technology to support Limited-English-Proficient (LEP) students' learning experiences
This article examines the challenges and rewards related to using technology as a tool to increase learning for limited English-proficient (LEP) students. The article is based on the belief that students' content, linguistic, and technology skills should be developed in tandem. Strategies and standards for technology use are featured along with suggestions for enhancing LEP students comfort level in content classes. Access and equity and the redefinition of teacher roles are also discussed. Impr
Author(s): Asta Svedkauskaite,Laura Reza-Hernanadez,Mary Clif

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Copyright North Central Regional Educational Laboratory. All rights reserved.

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.

Hurricanes 1: The Science of Hurricanes
This lesson is the first of a two-part series on the science of hurricanes and the kinds of technology being used to identify and track them. In this segment, students examine different scientific aspects of hurricanes, all in an effort to begin to understand the nature of motion, particularly how changes in speed or direction of motion are caused by forces.
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Copyright AAAS 2002. All rights reserved.

Mathematics Museum
Like any museum, this website called the Mathematics Museum provides some interesting visuals and explanations of various aspects of its subject, in this case mathematics. For example, the Fractal 3D Gallery includes video footage of 3D fractals and an FAQ section that provides some basic information on fractals. The Kodawari house includes some interesting math games and instruction for children as well as more advanced mathematics. Visitors can browse images created using Mathematica software
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How Students Learn: History, Mathematics, and Science in the Classroom
How Students Learn: History, Mathematics, and Science in the Classroom builds on the discoveries detailed in the bestselling How People Learn. Now, these findings are presented in a way that teachers can use immediately, to revitalize their work in the classroom for even greater effectiveness. Organized for utility, the book explores how the principles of learning can be applied in teaching history, science, and math topics at three levels: elementary, middle, and high school. Leading educators
Author(s): Committee on How People Learn

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Metadata is copyrighted by the National Academy of Sciences, 2005. NSDL may modify, reformat and redistribute metadata to function within NSDL systems, services and partners. Resource terms of use: Co

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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The CSI Effect: Changing The Face of Science
Until recently, the vast majority of female student images of scientists were versions of white males working alone in laboratory settings (Barman et al. 1997). As a result, the authors asked the question, ?What phenomenon is responsible for the recent change in female students? mental images of scientists?? They suggest that the popular Crime Scene Investigation (CSI) television series and other television programming have greatly influenced how students, especially female students, perceive sc
Author(s): Arthur Bangert,Richard Jones

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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

Exploration Activity: Local and Global Precipitation Patterns
In this activity, students investigate and compare seasonal precipitation patterns in the San Francisco Bay area with locations at similar latitudes and geographic situations in the southern hemisphere. They will also characterize the pattern of annual average precipitation versus latitude for the earth as a whole. They must understand the concept of latitude, know the names of latitude zones used by meteorologists and geographers, be able to estimate latitudes on a map or globe, and be able to
Author(s): Dave Dempsey

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Infinity
What is mathematical infinity? Are some infinities bigger than others? And does infinity exist in nature? This radio broadcast discusses how the infinitesimal is needed to understand motion and change; the idea that infinity is a limiting process rather than a thing; whether physical infinities exist such as at the Big Bang or in black holes; the discovery of zero and imaginary numbers; and the sense in which numbers can be said to be real. There is discussion on the paradoxes of Zeno; Cantor an
Author(s): Melvyn Bragg

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You may not copy, reproduce, republish, download, post, broadcast, transmit, make available to the public, or otherwise use bbc.co.uk content in any way except for your own personal, non-commercial us

The Earth's Orbit
These eleven activities relate to the results of the motion and position of the Earth in its orbit, investigating both the causes and the effects of changing seasons. It starts simply by trying to quantify the observation that it is colder in the winter and ends by measuring the tilt of the Earth. This is chapter two of the online book Eyes on the Sky, Feet on the Ground, containing explorations into astronomy as a classroom tool for learning how to theorize, experiment, and analyze data. The ac
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Copyright 1996 Smithsonian Institution.

Platonic solids, duals (grades 6-8)
Using this virtual manipulative, the student can examine the dual relationship among the five platonic solids, each a polyhedron with identical regular polygonal faces. Every platonic solid has a unique platonic solid that fits inside it, with its vertices at the midpoints of the original solid. The student can manipulate, color, and change the size of each solid. A transparent mode is available for viewing the outline of each polyhedron and its dual. Instructions for using the applet and inform
Author(s): Utah State University. National Library of Virtual

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Copyright 2003 MATTI Associates LLC. All rights reserved.