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• General
  • Sea World/Busch Gardens - Animal Bytes - A quick and easy place to find Fast Facts and Fun Facts on lots of animals
  • Oakland Zoo Animals: A to Z - Another user-friendly zoo site full of pictures and information
  • Animal Omnibus - A regularly updated list of web sources indexed by the name of the animal. For example, looking up African Elephant will produce a list of hyperlinks to sources with elephant information.
  • The Electronic Zoo - A huge list of links to information about animals.
  • exZOOberance - This website claims to be the largest virtual zoo in the world.
• On the Land
  • Jason's Snakes and Reptiles
  • The Wonderful World of Insects - A lot of creeping, crawling and flying things.
• In the Sea
  • SeaWorld Animal Information - Whales, dolphins, manatees and more--plus information on endangered species.
  • Whale Songs - Information on all cetaceans (whales, dolphins and porpoises)
  • In Search of Giant Squid - An awsome creature.
  • The Ultimate Shark Page - Pictures of sharks and lots of links to other shark sites.
  • The National Aquarium in Baltimore - Take a virtual field trip to the aquarium.
• In the Air
  • Peterson Online: Birds - Field guide with lots of links to other bird pages.
  • Bat Conservation International - Includes bibliographies, lists of threatened bats, online research reports, and lists of cave closures which affect the bat population. Also includes bat facts, sounds, species lists, and images. With information on building bat boxes and attracting bats.
• Under the Sink
  • Cockroach World - Don't miss this one!

• Inner Body System Select - Detailed images, descriptions and animations of ten human body systems are just a click a way.
• BBC Online - Science - Human Body - Clear illustrations, and easily interlinked explanations of all the major organs and body systems.
• A Guide to Brain Anatomy - Straightforward descriptions and illustrations, including associated behaviors and potential injuries.
• Explore the Brain and Spinal Cord - Comprehensive coverage in simple language, with a user-friendly interface.
• Comparative Mammalian Brain Collections - Images and information from "The Brain Museum" at the University of Wisconsin.  Viewers can see and download photographs of brains from over 100 different species of mammals (including humans) representing 17 mammalian orders.
• Brain Explorer - A glossary, a gallery, an atlas--plus a focus on brain disorders. (Beware: this site requires an up-to-date browser.)
• Gray's Anatomy - The classic is now online.  Beautiful illustrations, searchable by keyword.
• E Skeletons - View the bones of the human anatomy from different angles in clear, detailed images, and then compare them with the bones of a chimpanzee or a a baboon.
• Nutrition Analysis Tool - This University of Illinois website lets you enter the specific foods you've eaten, and then analyzes their nutritional content.
• NutritionData - A quick, easy way to find out what's good and bad about the foods you eat--especially those popular fast foods. Search their database of food composition data, and receive a concise nutritional analysis of each selected food.  Information is easy to find, and clearly-presented.
• Images from the History of Medicine - A searchable database of over 60,000 images illustrating the history of medicine. Although viewable online, many of the images are bisected by a thin diagonal line to encourage the user to purchase a digital copy from the National Library of Medicine.
• From Quackery to Bacteriology: The Emergence of Modern Medicine in 19th Century America - A history of medicine which includes sections on scientific medicine, alternative medicine, women's health, public health, nutrition, and other topics. Illustrated.

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Amazing Space: Education On-Line from the Hubble Space Telescope - These interactive lessons from the Space Telescope Science Institute include spectacular photographs taken by the Hubble Space Telescope and lots of graphics, videos, and animations.

• Astronomy for Kids - A easy-to-understand site that's full of useful information. Don't miss Sky Facts and Sky Maps.
• SkyView: The Internet's Virtual Telescope - Skyview is able to generate images of any portion of the sky in wavelengths from radio to gamma ray. Users select the position, scale and orientation desired. Skyview will generate an image and companion FITS data which can be viewed on screen or saved to disk. With simple and advanced interfaces, including a relatively simple page for non-astronomers.
• Earth from Space - Images of earth taken by space shuttle missions grouped into: cities, earth landscapes, earth-human interactions, distinctive features, geographic regions, weather and hurricanes, and water habitats.
• Welcome to the Planets - NASA's website. Includes a collection of images produced by NASA space missions. With up-to-date planet profiles (size, velocity, density, rotation around the sun, surface composition), images, and descriptive text.
• Solar System Simulator - "The Solar System Simulator originated as JPL's SPACE software package, which consisted of a set of computer graphics programs designed to simulate spacecraft trajectories and produce various photographic and video products. The SPACE package was specifically designed for animating space missions and was uniquely suited to JPL mission design." Choose the body of the solar system you wish to view, the body of the solar system you wish to view it from, a date from 1970-2010, and a time. The simulator will create a .jpg format image which can be viewed online or saved to disk. (A part of Space Library which includes NASA space art, star and planet surface maps, and more.)
• Your Sky - This program lets you choose a nearby city, or enter your latitude and longitude to find out what is in the sky presently.  Easy-to-use controls let you  manipulate the data to find a star map for the next night, or the next week.
• Stars and Constellations - Great sky maps and photographs
• Star Journey - Sky chart from the National Geographic magazine.
• Astronomy Picture of the Day - A new picture every day along with a brief description written by an astronomer.
• The Observatorium - A NASA site that provides a virtual tour of the sky and earth. The "Image Gallery" shows all U.S. capital cities as they appear from space.
• Black Holes and Neutron Stars - A good, understandable explanation of what they are and how we find them.

• WebElements Periodic Table - The most up-to-date online Periodic Table.  Includes a user-friendly outline of information, as well as audible descriptions, silly cartoons, and even some movies.
• The Periodic Table of the Elements - Created by an 8th grader for his science fair project, this site includes properties, history, and uses for each element, as well as a table of common isotopes by element.
• Chemicool Periodic Table - A color-coded, searchable table, with links to other similar sites. For each element, Chemicool contains general information, states, energies, oxidation and electrons, appearance and characteristics, reactions, and other forms.
• ToxFAQs™ for Cyanide - Everything you need to know about cyanide--brought to you by the government's Agency for Toxic Substances. (Part of the Center for Disease Control.)
• Teaching Plastics - Classroom activities and information on the history of plastics, recycling, resource conservation, food safety, and sports.
• American Plastics Council - In addition to History and Environmental Issues, this industry website also covers Production Statistics.
• Large Molecules Problem Set - This Arizon Univeristy Website allows you to quiz yourself step-by-step. If you miss an answer, you'll automatically get a quick tutorial.
• CD Chemfinder - A database which includes physical property data and 2D chemical structures for chemical compounds. Searchable by chemical name, melting point, boiling point, molecular weight, CAS (Chemical Abstracts Service) Registry Number, and structure. Chemfinder includes hypertext links to other Web databases (such as MSDS, biochemistry, health, pesticide, physical property, regulatory status, etc.) with information on the compound.
• NIST (National Institute of Standards) Chemistry Web Book - The Chemistry WebBook is searchable by formula, name, partial formula, CAS registry number, molecular weight, ionization energy, and proton affinity. Information available for each chemical includes name, CAS registry number, molecular weight, and physical property data. The data includes documentation on the source of the information. Some data (such as Gas Phase IR Spectrum) best viewed with a Java-enabled browser.
• Yahoo's Periodic Table Links - A searchable, quick list of links that is updated often.
• The Chem Team - Tutorial for high school chemistry classes. You will also find AP Chemistry tests from 1970 to 1996 here..

• The World Health Organization - An international overview of infectious diseases, non-communicable diseases, environment issues relating to disease, reproductive health issues, and health statistics
• Centers for Disease Control and Prevention - "In the News," "Travelers Health," and "Health Topics A-Z" are the major features of this website.
• Alphabetic List of Specific Diseases/Disorders - A huge list that's not well-organized, but still worth digging through.
• Your Genes, Your Health: A Multimedia Guide to Genetic Disorders - Part of the Cold Spring Harbor Lab, this site has animated explanations of the major genetic disorders, such as Sickle Cell Disease, Cystic Fibrosis, Hemophelia, Neurofibromatosis, and Huntington Disease.
• MedLine Plus - Part of the National Library of Medicine. Provides links to sites on common diseases and conditions, an online medical dictionary, and current articles on health issues.
• Healthfinder - A gateway to health information provided by the Department of Health and Human Services.  It covers more than 1000 topics, and restricts its links only to government and nonprofit agencies whose contents have been screened for quality   It includes a Spanish section.
• Yahoo! - Health: Diseases and Conditions - A huge, alphabetized list of diseases. Click on a disease name, and you'll get a list of websites that deal with it.
• Whole Brain Atlas - Includes sections on the normal brain, significant brain structures, aging, neurovascular disease, neoplastic disease, degenerative disease, inflammatory, and infectious diseases of the brain. Most images accompanied by descriptive material. Includes links to a primer on neuro-imaging.
• Sexually Transmitted Diseases:
  • American Social Health Association Online Information Center - This is the place for information on Sexually Transmitted Diseases . Hotlines, educational materials, links, support groups, surveys, and even a glossary.
  •  New York Online Access to Health website maintained by the City University of New York. It brings together lots of information from a variety of consumer health sources.
• Infertility Treatments - Part of the Internet Health Resources WebSite. Provides treatment overviews, and answers to frequently asked questions.
• Dr. Derman's Infertility Home Page - Causes, drugs, surgical procedures, treatments, links to other fertility resources on the web-all with clear illustrations.

• Squid Dissection -   The Smithsonian Institution's National Museum of Natural History overview of the dissection process includes labeled diagrams, and step-by-step dissection instructions.
• The Interactive Frog Dissection - With step-by-step instructions and  pictures, as well as overview movies, this site is the next best thing to being in the lab with a scalpel in your hand.
• Virtual Frog Dissection Kit - The froggy can be rotated, flipped on its back, skinned, enlarged, or edited so you only see the organs and systems you want. You can even make a movie! It ain't easy being green...
• Virtual Fetal Pig Dissection - Study Guides, Interactive Quizes, and step-by-step illustrated descriptions to guide you through the process.

• Habitats and Biomes - This ThinkQuest site--part of The Virtual Zoo --provides maps, photographs and clear explanations.
• World Biomes - Detailed information on the specific plants and animals in various biomes.
• Biomes - This site includes Aquatic Biomes. More words, and fewer pictures.
• Ecological Footprint - Are you using your share of the world's resources?  Take this online "quiz" to determine "how many planets" it would take to sustain the world's population if everybody used as much of the world's resources as you do.
• Aquatic Communities - A page of links that covers Rivers and Streams, Estuaries , Lakes and Ponds, and Oceans
• Living Things - Links to information on ecosystems. This is also a good place to look for information on animals, plants, and biology in general.
• Trends: a Compendium of Data on Global Change - Features data on atmospheric carbon dioxide, consumption of fossil fuels, long term climate records, atmospheric aerosols, terrestrial carbon content and impact of land use on carbon fluxes. The data is presented by site, region or emission type. Includes graphs and digital data, available for download.
• Global Warming Facts and Our Future - In this exhibition, the National Academies provide scientific information to help us make informed decisions and to help answer some important questions. Sections cover The Greenhouse Effect , Carbon Cycle, Causes of Change, Past Change, Predicted Change, Impacts of Change, and Responses to Change.
• Earth from Space - Images of earth taken by space shuttle missions grouped into: cities, earth landscapes, earth-human interactions, distinctive features, geographic regions, weather and hurricanes, and water habitats.
• Bagheer: A Website for Our Endangered Species - A visually exciting site which collects information about endangered species: animal profiles, legal actions, interviews with environmentalists, etc.o lists, legislation, and protection efforts.
• Endangered Species list - From the US Fish and Wildlife Service. Endangered species are listed by state.
• The Rainforest Action Network - Lots of information on rainforests and what you can do to help preserve them.
• TOXNET (Toxicology Data Network) - A searchable database of information on hazardous chemicals, sponsored by the National Library of Medicine
• Energy Quest - A huge site maintained by the California Energy Commission. A one-stop site for research on energy conservation.
• Desert USA - Information about American deserts including plants, animals, and Native Americans who live in the desert.

• Geology Labs On-Line - Web-based lab activities from California State University that provide interactive "virtual" labs on such topics as earthquakes, carbon dating, and floods--with more labs being added all the time.
• Earthquake Information - General information from the US Geological Survey.
• National Earthquake Information Center: Near-Real-Time Earthquake Bulletin - Up-to-the-minute information from the US Geological Survey
• Earth from Space - Images of earth taken by space shuttle missions grouped into: cities, earth landscapes, earth-human interactions, distinctive features, geographic regions, weather and hurricanes, and water habitats
• Locations of the latest earthquakes - Complete with maps
• The Electronic Volcano - Pictures, maps, and reports on current volcano activity.
• Mineral gallery - If you need information on minerals, this is a good place to start.

• Kimball's Biology Pages - This site lets you search by topic, and gives clear, illustrated examples--complete with hyperlinks to related topics.
• Genetic Science Learning Center - Hundreds of hands-on activities on every genetic topic imaginable. From the University of Utah.
• Your Genes, Your Health: A Multimedia Guide to Genetic Disorders - Part of the Cold Spring Harbor Lab, this site has animated explanations of the major genetic disorders, such as Sickle Cell Disease, Cystic Fibrosis, Hemophelia, Neurofibromatosis, and Huntington Disease.
• Evolution - A companion website to the PBS series, loaded with Shockwave animations that clearly illustrate every aspect of this topic.
• The DNA Learning Center - Gene Almanac -  This Cold Spring Harbor Lab site includes animation sequences as well as genetic databases where you can enter your own genetic information to do Hardy-Weinberg population calculations. While you're in the neighborhood, check out DNA From The Beginning - A multimedia primer on the basics of DNA and heredity that's more complete than most textbooks.
• Genetic Science Learning Center -  A terrific introduction to all the ways that genetics affect our lives and society from the University of Utah Eccles Institute
• Human Genome Project Information page for history, ethical issues, and other information on the project. With links to other genetics resources, educational materials, and links to the more technical research page which includes abstracts of completed research and other information.
• Gene Map of the Human Genome - The map includes a list of featured genes (known to cause illnesses such as Huntington's or cystic fibrosis), a glossary of terms, a browse by chromosome, and links to research databases.
• Genome Database - Hosted by Johns Hopkins University, in support of the Human Genome Project, the database has simple and advanced search interfaces. The database contains: regions of the human genome, including genes, clones, amplimers (PCR markers), breakpoints, cytogenetic markers, fragile sites. ESTs, syndromic regions, contigs and repeats. Maps of the human genome, including cytogenetic maps, linkage maps, radiation hybrid maps, content contig maps, and integrated maps. These maps can be displayed graphically via the Web. Variations within the human genome including mutations and polymorphisms, plus allele frequency data. The site includes extensive links to other sites in the Human Genome Project and online reports. Where applicable, the reports include maps, and links to Online Mendelian Inheritance In Man (OMIM) OMIM , a database of human genes and genetic disorders, contains detailed descriptions, pictures, and additional references. It also contains lots of links to NCBI's Entrez database of MEDLINE articles and sequence information.

• Science Fair Stuff
  • The Exploratorium Science Snacks - The Exploratorium Science Snackbooks show how to build miniature science exhibits with inexpensive, easily available materials. This online resource includes 107 "snacks," each with instructions, advice, helpful hints, and explanations of the science involved.
  • Internet Public Library's Science Fair Project Guide - Of all the science fair sites, this one's the most complete and up-to-date. Full of ideas, resources, and sample projects.

• The Exploratorium Online Exhibits - Optical Illusions Galore!
• Microscopy Primer: Introduction to Microscopy -  Everything you ever needed to know about microscopes: Light and Color, Parts, Techniques, History, and "Virtual Microscopy."
• Bill Nye the Science Guy - The web site is almost as good as the TV show. Experiments, puzzles, quizzes, links, and a new science demo every day.
• Bad Science and Bad Meteorology - Prof. Alistair B. Fraser maintains both pages "in an attempt to sensitize teachers and students to examples of the bad science often taught in schools, universities, and offered in popular articles and even textbooks." The site provides examples of "bad science" and explains why they are wrong.
• The Why Files - Current events in science. Find out the science behind the headlines.
• How Stuff Works - From car engines to cruise missiles, from toilets to television sets--this is a treasure trove of answers to how all the technology we live with--or can't live without--works.
• Molecular Expressions: Images from the Microscope - Includes beautiful color images of cholesterol, beer, DNA, fatty acids, buckyballs, computer parts, and more. Each image includes a descriptive caption. With information on optical microscopy.
• Invention Dimension - A site maintained by MIT that allows you to search for inventors or inventions. Click on the "Inventor of the Week Archives."
• The Keirsey Temperament Sorter II - This site  lets you take a shortened version of the Meyers-Briggs personality profile online.
• The Faces of Science: African Americans in the Sciences - This site features short biographies of African American scientists from all scientific disciplines. Each illustrated biography includes a bibliography of works by and about the scientist, a list of patents received, and other information. The site also includes statistics about the number of doctoral degrees awarded to African Americans in scientific disciplines.

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• Kimball's Biology Pages - This site lets you search by topic, and gives clear, illustrated examples--complete with hyperlinks to related topics.
• Microscopy Primer: Introduction to Microscopy -  Everything you ever needed to know about microscopes: Light and Color, Parts, Techniques, History, and "Virtual Microscopy."
• ChickScope: Exploring Embryology - A huge site from the University of Illinois that includes photos, video clips, notes and observations--and some really bad chicken jokes.
• The Visible Embryo -Allows the viewer to navigate through the 40 weeks of a pregnancy, providing detailed illustrations and explanations of each unique stage of human development. Includes a terrific glossary and list of links
• The Microbe Zoo - Here's where you'll discover the world of invisible critters that live on us and in us.  Everybody needs to know what Methanobacterium smithii is!
• Molecular Expressions: Images from the Microscope - Includes beautiful color images of cholesterol, beer, DNA, fatty acids, buckyballs, computer parts, and more. Each image includes a descriptive caption. With information on optical microscopy.
• Tree of Life - The Tree "is a project designed to contain information about the phylogenetic relationships and characteristics of organisms, to illustrate the diversity and unity of living organisms, and to link biological information available on the Internet in the form of a phylogenetic navigator."
• Dictionary of Cell Biology - First published in 1989, the second edition (1995) is now available on the web and in print. The second edition is searchable or browsable via a graphical interface which groups terms into very broad categories (diseases, mitochondria, transport). Covering terms encountered in biology literature, it includes 5450 entries and 5772 cross-references. New entries slated for inclusion in the third print edition are now available in the Web second edition.

• Colorado State Cooperative Extension Garden Publications -  Use this site to find fact sheets on basic gardening tips, diseases, flowers & shrubs, fruits & vegetables, and trees & shrubs.
• Gardening.com - Includes a plant encylopedia, links to Internet gardening sites, and a problem solver to identify common gardening problems.
• PlantFacts - A fact sheet database and a plant dictionary, searchable by name, category, feature, or pest.  Information from 46 different colleges, universities, and government institutions across the U.S. and Canada.
  (If you're looking for garden pests, this is the site to try first.)
• A Survey of the Plant Kingdom - All plants listed by kingdom. Nice pictures.
• Wildflowers - Links to extensive photographs, and other sites related to botany.
• Flowerbase - A database from Holland which has over 7000 images of flowers and garden plants. Searchable by botanical name or number, or common name in English. To use it, click on Menu, then click on Flowerbase.
• Cornell University Poisonous Plants Web - A developing resource on poisonous plants. Arranged by genus and species, type of toxin, and animals affected. Although not yet complete, the database includes description, distinguishing characteristics, distribution, symptoms of poisoning, prevention, and references. With links to related resources.

• Mr. Owens's AP Physics Class Website - It's all here, folks--every brain-busting topic you'll cover. Definitions, explanations, illustrations, related links, and pretests--all the support materials you need to succeed in The Little Professor's class.
• How Things Work - This site contains a series of short essay answers to questions posed over the web. The questions and their answers can be searched or browsed via a topical index. Louis A. Bloomfield, a professor of physics, has grouped the questions and answers into an index which corresponds to his print work How Things Work: The Physics of Everyday Life.
• The Physics Zone - If you don't get it unless you see it in action, this site is for you.  Simulations galore of every aspect of physics.
• A Virtual Nuclear Power Plant Tour - This site offers pictures, diagrams, comparisons to other types of energy, and links to other databses with statistics about energy.  It includes information abut nuclear waste, power plant impact on global warming, and radiation safety.

• 2001Mars Odyssey  - from NASA
• Your Sky Interactive Planetarium - To make a sky map, just enter the latitude and longitude of your observing site or select from a list of cities. Press the "Make Sky Map" button andYour Sky will deliver a map showing the sky above the location you specified at the current time.
• Life on Mars - This is the CNN site and it offers a lot more information than NASA does. There are links to other pages about Mars, and even links to science fiction pages.
• Mars Network - Gateway to the Mars Frontier - A NASA site describing a proposed communication and navigation infrastructure at Mars
• Project Galileo : Bringing Jupiter to Earth - Use this great site to follow the exploration of Jupiter and its moons.
• Hubble Space Telescope Public Pictures - Includes the whimsically-named HST's Greatest Hits 1991-1995 --absolutely phenomenal images taken by Hubble. Displayed as thumbnail images with links to the larger image in .gif , .tiff or .jpg format. Most images include a descriptive caption.
• Hubble Images of the Planet Pluto
• The Lunar Prospector - Set for launch in October, 1997, this satellite will circle the moon for one year looking for polar water and for minerals which could be used for building a lunar base or for fuel for future missions which would be launched from the moon.
• The National Air and Space Agency - Links to all of NASA's sites on the web.
• Mike's Spacecraft Library - Information about all types of spacecraft and satellites from all countries.
• Satellites - Learn the what, why and how of man-made satellites, then build one of three Java-based satellites with the interactive construction sets. Includes information about Communications, Earth Remote Sensing, Weather, Global Positioning, and gallery lesson plans. From the Tech Museum of Innovation in San Jose, California.

• CIAC Internet Hoaxes - A site maintained by the Department of Energy that provides up-to-date information virus hoaxes, as well as actual email viruses, chain letters, and other potential web problems
• Search Dictionary of PC Hardware and Data Comm. Terms - This dictionary provides complete descriptions of complex terms dealing with personal computers and networks. It contains up-to-date information about everything from a common item like "batteries" to an obscure font technology called "Speedo."
• Totally Drivers - Help is here for those of you always looking for the right drivers.  In just two clicks, you can be on the website for the brand of driver you need. Includes browser update links and plugin links, too.
• Xenu - Visit this site to download a free program called Xenu Link Sleuth.  It checks all the links on your web pages and generates a nice clean report of which links have coasted off down Interstate 404.
• Search Engine Watch - Overviews of the major search engines, reviews, tutorials, and insights into search engine technology, trivia and interesting facts.
• CoolText.com -  A free online service which will create graphics customized exactly the way you want them.

• Rain or Shine Weather - Five day weather forecasts for 800 cities worldwide plus weather maps for the United States.
• AMS The DataStreme Project - Updated every two hours by the American Meteorological Society, this site gives you all the data you need to make accurate weather predictions.  You can see the current maps of  fronts, water vapor, upper air currents, and infrared imaging that the TV stations use.
• El Nino Theme Page - Includes basic information, frequently asked questions, links to Spanish and Portuguese sites, forecasts, data, reports on the economic impacts of El Nino and more.
• Bibliography of the Effects of El Niño on the United States -This site provides an extensive list of books and articles which deal with El Nino's impact on agriculture, climate, drought, fire, flood, natural gas, precipitation, tornadoes, snow, streamflow, etc.
• The 1997 El Nino Southern Oscillation - This site contains direct links to articles from various sources and reports from many locations throughout the world.
• Online Guides - Richly illustrated instructional materials on meteorology, climate, remote sensing and global change provided by the University of Illinois Weather Machine. With projects and activities. Features both text-based and graphic interfaces.
• The Weather Channel - Current weather forecasts.
• The Tornado Project Online - Lots of information about tornados.
• Weather Science Hotlist - Links to many weather web sites.