MGNet "is a repository for information related to multigrid, multilevel, multiscale, aggregation, defect correction, and domain decomposition methods." In short, the material offered on the site is mainly used to solve partial differential equations. There are many resources given on MGNet, including tutorials, a preprint archive, and information on upcoming conferences. Quite a few software packages can be downloaded from the site; however, they require a specific decompression utility. MGNet a
History and Evolution of Physics
This Topic in Depth explores the history and evolution of the field of physics. The first website, created by the Institute of Physics, offers an interactive timetable of the development of physics from the ancient philosophers during the Bronze Age to the present research in quantum mechanics and relativity (1). The website illustrates the links between scientists and eras. Second, the US Department of Energy provides a synopsis of the work of the nuclear physics research program and the high-e
Bing & Bong's Tiny Planet
The Bing & Bong's Tiny Planet website, a supplement to the educational television series, offers excellent science activities, games, and online books for small children. Users can sail around the planet to learn about wind, read an online story to discover space, take an adventure through the water cycle, and much more. Visitors can also learn the essentials of colors, shapes, and light through short videos and interactive modules. The colorful website offers a great way for children to begin l
The European Space Agency (ESA) furnishes thorough articles and images regarding its launch vehicles, Europe's Spaceport, and technology. Users can find out ESA's launch schedule, plans for next generation launchers, and the past successes of the launch program. The website offers a video of a launch countdown, images of the Ariane 5, and many more media materials. Through the interactive modules, individuals can learn about the stages, boosters, engines, and additional specifics of the launcher
Created by the Institute for Molecular Virology at the University of Wisconsin-Madison, this Web site offers high quality virus images that may be used for seminar presentations or any other noncommercial use. Users can choose from American Society for Virology conference poster images, enhanced EM pictures, and images of virology-related book and journal covers. Images may be searched by virus name; the results page will provide links to summary information from the Protein Data Bank and to the
Created by the National Center for Biotechnology Information, UniGene is "an experimental system for automatically partitioning GenBank sequences into a non-redundant set of gene-oriented clusters." In addition to gene sequences, this Web site also offers thousands of novel expressed sequence tag (EST) sequences, a useful gene discovery resource. Organisms currently cataloged include human, rat, mouse, cow, zebrafish, clawed frog, fruitfly, mosquito, wheat, rice, barley, maize, and cress. Users
The American Society of Mammalogists
Founded in 1919, the American Society of Mammalogists (AMS) is an organization, composed primarily of professional scientists, that promotes mammal study. The members of AMS also work to provide "information for public policy, resources management, conservation, and education." A notable ASM site feature is the Mammal Image Library which provides "images of mammals for educational purposes worldwide." The ASM website also contains information about two main publications, _The Journal of Mammalog
Ozone in the atmosphere : ozone depletion
What processes cause a depletion of the ozone layer? This informational page, part of an interactive laboratory series for grades 8-12, explores natural and human-made destruction of the ozone layer. Here students read about the instability of ozone atoms and the naturally changing quantities of ozone in the air. Volcanoes, the oceans, and other natural processes provide chemicals that break down ozone. Chemical equations of the breakdowns are provided. A discussion of the use of chlorofluorocar
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
A Mathematics Fantasy: The Million $ Mission
This math site has students study exponential growth. Students are provided with two payment options, one cent on the first day, two cents on the second day, and double their salary every day after that for the thirty days, or they can choose exactly one million dollars. Included are two versions, a one page version that has the calculations worked out and a multi-page version that is appropriate for printing so students can use their own calculations. An exponential growth graph, a formula to f
How do you light up your bike without reflectors or lamps?
Bicycle safety is a critical matter. This riddle asks students how they can illuminate their bicycles without using reflectors or headlamps. Before they select their answer, students are given a clue. They read about and watch a video clip of two children's attempts to use glow-in-the-dark materials to light up their bikes. The riddle's final page presents students with three clickable answer choices. Brief feedback is given for the incorrect choices. When students select the best answer, a shor
The Michelson-Morley experiment
This lecture is also available in French and Spanish, and in PDF. A flashlet simulation of the experiment is included. It describes in comprehensible detail this historical experiment which showed that light has wave properties, but no aether exists, thought to be the medium of the waves.
This two-minute radio program features sound clips of infant and adult storks together with a commentary on these two distinct animal sounds. An environmental official from Hungary, where the majority of white storks live during the spring and summer, describes the function of the noises made by chicks and adult storks. He also discusses the instincts exhibited by adult pairs when they are raising baby storks. The archived program, part of the Pulse of the Planet radio show, is available here in
Mortality rate of captive-bred and released carnivores is 70%
This January 25, 2008 entry in the NSDL Expert Voices blog Connecting News with National Science Education Standards deals with survival rates of captive-bred carnivore released into the wild. It points to modifications breeders should make to decrease mortality rates. Additional links to teaching resources related to populations, ecosystems, and diversity are provided
Arctic Region Map
This map shows a political view of the Arctic region as defined by the area where the highest temperature for the warmest month is below 10 degrees C.
Science Sampler : Growth Potential
Students will enjoy carrying out this exciting and challenging research project that combines science with computers and mathematics to investigate how polyacrylate animals change in size over time when placed in water and aqueous salt solutions. The hands-on activity motivates students and provides them with enjoyable and rewarding science project experiences. Here they have an opportunity to solve a problem and use the science inquiry skills of observing, collecting, organizing, and analyzing
Examine global surface currents
This Earth science animation is designed to help high school students visualize the causal relationship between global winds and the temperature and direction of ocean surface currents. The animation presents a world map that shows the direction of surface currents, which are color-coded to indicate warm and cool temperatures. Moving the cursor over the map superimposes gold arrows that indicate wind direction. The introduction summarizes the relationship and calls students attention to the temp
A Maths Dictionary For Kids
An animated, interactive dictionary for students which explains over 400 common mathematical terms in simple language. Includes definitions, animated examples, interactive activities, practice and lots of different calculators.
Celestial navigation is the process of finding your position on Earth based on astronomical guideposts. In this lesson, explore the principles of navigation; build tools to observe celestial bodies, and learn how science, mathematics, technology, and history are intertwined.
Statistics and probability. Grades 6-8
This MathPARTNERS unit contains seven lessons with hands-on learning activities for exploring statistics and probability with students in grades 6-8. The lessons, designed for mentoring situations, may also be helpful for teachers and parents. Each lesson with reproducible student materials, features an overview of the mathematics, preparation guidelines, teaching tips, and suggestions for how to use each activity to develop specific mathematics concepts. Statistics activities focus on posing qu