• Tide Zones
  Explaination on how tides work and are measured.

• The Discovery of Estuarine Environments
  This sites covers the physical properties of estuaries, what living things depend on estuaries, and the enivormental issues facing esturaries.

• Earth Observatory
  Earth Observatory is to provide new satellite imagery and scientific information about our planet. The focus is on Earth's climate and environmental change.

• Mount Washington Observatory
  What is the purpose of the Observatory? Does Mount Washington really have the world's worst weather? This and much more can be found at this site.

• Fear Of Physics
  Fear of Physics is a site designed to simplify and explain the science of physics.

• BBC Online Science
  The BBC Online site offers both a standard version and an enhanced version of various science information that will be of interest to K-12 teachers and students.

• Dive and Discover
  An interactive distance learning Web site designed to immerse you in the excitement of discovery and exploration of the deep seafloor. Dive and Discover brings you right on board a series of research cruises to the Pacific and Indian Oceans, and gives you access to the latest oceanographic and deep submergence research as it happens!

• The Why Files
  The Why Files is the science behind the news.

• SpaceWeather
  Science news and information about the Sun-Earth environment.

• The North American Sundial Society
  This link deals with the study,development,history,and preservation of sundials and the art of dialing througout the continent..

• The Speed of Light
  This site will help you learn more about the speed of light.

• Athena
  This site contains numerous space, weather, earth, and ocean related information.

• Volcano World
  Excellent resource for information on volcanoes and eruption activities around the world..

• Reeko's Mad Scientist Lab
  Science experiments for teachers, parents, and kid's of all ages.

• Brookhaven National Laboratory Relativistic Heavy Ion Collider
  Brookhaven National Lab has created a virtual tour of its Relativistic Heavy Ion Collider, which recently began operation. Learn about construction techniques, and what is being studied as the ions fly around the RHIC "Racetrack."

• What is Photosynthesis?
  A hot hotlist on photosynthesis, courtesy of Arizona State University. Some articles are geared to elementary and middle school, while other articles are appropriate for college students.

• ESkeletons
  Funded by the National Science Foundation, this resource allows students to access clear, detailed images that they can observe, describe, and compare.

• BirdWorld
  NASA has been recruited to help track endangered birds in their migratory treks. This site shows some of the tracking, as well as other projects involving endangered birds.

• WildCam: Otters
  This site is brought to you by National Geographic and links to live otter cams, otter video, and otter resources on the web.

• Anatomy of the Human Body
  The Bartleby.com edition of Gray’s Anatomy of the Human Body features 1,247 vibrant engravings—many in color—from the classic 1918 publication, as well as a subject index with 13,000 entries ranging from the Antrum of Highmore to the Zonule of Zinn.

• Hurricane:Storm Science
  Go inside a hurricane, learn about the path a hurricane takes and read survival stories.

• Science Educators Web Resources Supersite
  Links from Astronomy to Weather, with everything in between.

• WebMolecules
  Welcome to WebMolecules -- an active, sponsor-supported site designed for the 3D visualization of molecules.

• The American Physical Society: A Century of Physics
  Let's bring physics into the real world...this site highlights advances in physics over the last hundred years. Review the Panorama pages to view highlights, decade by decade. View these discoveries in context with political and artistic movements of the time.

• Terra: The EOS Flagship
  On February 24, 2000, Terra began collecting what will ultimately become a new, 15-year global data set on which to base scientific investigations about our complex home planet.

• Dive and Discover
  Daily updates and quizzes are available from this research project, sponsored by the Woods Hole Oceanographic Institution. The current journey is exploring a mid-ocean ridge projection along the East Pacific Rise off the western coast of Central America. See Plate Techtonics in action! Join the adventure before the trip ends on May 10. More trips scheduled in 2001.

• CELLS alive!
  Learn all about cells, read about techniques used for cell imaging and research, view the BioCam to see how cells divide and conquer.

• SprocketWORKS
  This site uses shockwave files to let you tour the night sky, play logic games, and learn how to groom a horse. Plan on spending some time on this site trying out the different areas. Covers music, economics, science, art, and geography.

• bugbios.com
  This site aims to help you really see insects for the miniature marvels they represent and to understand how intertwined our cultures have become with these alien creatures.

• Explore the Estuary Live!
  Estuary Live will take place May 8-12, 2003. Free to participants (but please sign up in advance),the field trip will explore the Rachel Carson Site of the North Carolina National Estuarine Research Reserve, covering four islands and salt marshes off the North Carolina coast. Some of the lessons on the site currently include "Estuary Environments" - My Environment: How Do They Connect?" and "Is It Really That Hot at the Beach? Resources include motion picture and still images of estuary inhabitants. The "Frequently Asked Questions" section covers a lot of the technical issues surrounding the webcast sessions in May.

• Global Change Master Directory
  Information about Earth science, climate and global change data as well as the biosphere.

• The Virtual Field Trips Site
  Take your students on nature field trips through the Web. Each field trip covers a single topic such as salt marshes or volcanoes. Sites are arranged in sequential order to build a story and include a series of "trail markers" or stops, that describe each site on the field trip to guide students' learning. If logs or journals are required, every field trip has a set of prepared documents that you can print out for each person on the trip. Also included are short teacher's guides and selected other Web sites that provide background or curriculum guidance.

• The Tide Pool Page
  An interactive tour of a tide pool. Included are Tide Pool Tips for safe viewing and minimizing human impact upo this fragile ecosystem, information about some of the organisms found in tide pools, how tides work, and a list of related links.

• Why Doesn't the Moon Rotate?
  This is a one-page discussion of the physics of the Moon's relationship to the Earth. Useful for high school physics, earth sciences, or astronomy classes.

• Planetpals Earthzone
  Alive with colorful cartoon characters, this interactive resource teaches about the planet earth, natural resources, ecology, and its care. Also, free recycling kits are offered.

• Athena, Earth and Space Science
  Athena's site for K-12 highlights topics such as space, weather, earth, and oceans. Each section provides instructional and resource materials.

• The Great Plant Escape
  Led by the sleuthing of Detective LePlant, students in grades 4 and 5 can go on a fun interdisciplinary adventure in botany.

• MicroWorlds
  Take an interactive tour of current research at Berkley Lab's Advanced Light Source and explore structures. Good science education for grades K-12.

• Cool Science for Curious Kids
  Provided by the Howard Hughes Medical Institute, this site features five activities adapted from science and children's museums.

• Physics 2000
  Here you will find an interactive tour through modern physics. Topics include x-rays, CAT scans, electromagnetism, a quantum description of the atom, the photoelectric effect and more.

• Science Monthly Media Guide
  Monthly listings of science new sources available on the Web, on TV, and on the radio.

• CHEM4KIDS!
  This site features interactive discussions on general topics of matter, elements, atoms, math, and reactions with a short quiz after each.

• Funology.com: The Science of Having Fun
  This colorful site is full of activities for young kids to learn how to make things, explore the world, and discover new skills.

• MicroWorld: Internet Guide to Microscopy
  A rich collection of web resources tailored to K-12 teachers and students interested in bringing the microworld into the classroom.

• Internet Travels in the Life Sciences
  An excellent collection of links related to studies in the life sciences.

• The Biology Project
  Visit this interactive online resource for learning biology. Teachers can assign problem sets for reviews or activities.

• The GLOBE Program
  Global Learning and Observations to Benefit the Environment (GLOBE) is a worldwide network of students, teachers, and scientists working together to study and understand the global environment.

• FunBrain.com
  FunBrain.com produces kids learning games for K-8 kids and teachers, although games are sorted by age. The focus is on providing teachers, parents, and kids with the tools they need to succeed.

• How Stuff Works
  Have you ever wondered how the engine in a car works or what makes the inside of a refrigerator cold? Click on hundreds of categories to see cool articles!

• Biology4Kids
  This site has some useful information on the chemistry of biology, how the world of biology is studied, cell structure and function, and ecology. There are also links to chemistry, geography, physics, activities (quizes), and a glossary.

• Make a Splash with Color
  A site about light and color. Very detailed information is provided about the nature of color, forms of light, the eye and how we see. There are activities to participate in as you follow a guided path through the site.

• Woods Hole Oceanographic Institution
  Visit the WHOI, a world leader in the field of oceanography. Scientists at the Institute have been probing the mysteries of the oceans for more than 65 years. Also includes a K-12 Resources link.

• The Principles of Aeronautics
  This is an introduction to a course on the principles of aeronautics. As you learn more about the mechanics of airplanes, their dynamics and structures, you can move onto more advanced lessons on flying theory and aeronautics.

• Neuroscience for Kids
  This site was created for students and teachers to learn more about the nervous system. View current events and discoveries in brain research or try an experiment to learn more about the nervous system.

• The Science Page
  The Science Page contains links to resources in all the main science areas from biology to weather, plus constants and conversions, science history, science organizations and newsgroups, resources for teachers, lab and lesson plans, and much more!

• The Mir Space Station
  Visit the Mir Space Station and see how and why Russian Cosmonauts perform experiments and do research. A link is provided to the International Space Station (ISS) and NASA shuttle missions.

• General Chemistry Online!
  This resource for students and teachers of introductory chemistry includes interactive course guides and tutorials, an exam survival guide, reference tables, self-grading quizzes and exams, a searchable glossary, a question and answer board, answers to over 300 FAQs, and a chemical trivia quiz.

• Science with OAR
  The goal of this site is "to provide middle school science students and teachers with research and investigation experiences using on-line resources."

• S.E.E.D.
  SEED offers learners a real world, real people context in which to develop their interest and excitement about science. This site includes articles about scientists and projects, experiments, teachers guide and an "Ask an Expert" feature.

• Instructional Materials in Science Education
  The IMSEnet web site contains many annotated links to the best science instructional materials of the WWW for K-12 classroom instruction as well as a variety of K-12 interdisciplinary web resources.

• Windows to the Universe
  This site includes facts, news, and photographs about the planets, stars, comets, etc., as well as information on space missions and famous scientists and astronauts.

• NASA Human Spaceflight
  View the latest spaceflight news, follow along with the mission in progress, or check out the Space Fact of the day.

• Waterford Press
  This site offers free print-based instructional materials to support elementary natural science curriculum.

• Welcome to the Planets
  Welcome to the Planets is a collection of many of the best images from NASA's planetary exploration program.

• SpaceKids
  SpaceKids make learning about space fun for teachers and students.

• The Arachnology Home Page
  Visit this site to learn more about spiders. These Links to spiders sites will be especially interesting for students.

• The Satellite Site
  Learn the what, why, and how of man-made satellites, then build one of three Java-based satellites with the interactive construction sets.

• The K-8 Aeronautics Internet Textbook
  The Aeronautics Internet Textbook includes sections on history, mythology, fundamentals, and more. Before "opening" a chapter, visitors select a reading level, from beginning to instructor. Other highlights include curriculum bridges, lesson plans, activities, and an Internet guide. The text is also available in Spanish.

• Ask Dr. Universe
  Why don't spiders stick to their own webs? This Washington State University link presents science questions like this in a fun graphic format and shares answers written by WSU researchers. Kids can e-mail their own questions.

• PlanetDiary
  PlanetDiary records the events and phenomena that affect Earth and its residents. This site presents geological, astronomical, meteorological, biological, and environmental news from around the globe.

• How Things Work II
  This site - as its name inplies - describes the workings of common objects, from fountain pens to helicopters and multi-stage rockets, and much more,

• Maritimes: University of Rhode Island Marine Programs
  The Maritimes publication comes out four times a year, and covers all aspects and implications of marine science in laypersons terms.

• Mr. Biology's High School Bio Web Site
  This site offers explantions, worksheets, and homework help to biology students.

• Kids Web
  Kids Web science pages include links from Astronomy to Weather and Meterology.

• Exploring Leonardo
  Developed by the Museum of Science, Boston, for the Science Learning Network, Exploring Leonardo was designed for students in grades four through eight. Many activities, however, can be adapted for older or younger students as needed. Explore this site and learn about this fascinating scientist, inventor, and artist.

• NASA Space Science News
  A link to the Marshall Space Flight Centre. A lively, e-news site about astrophysics, earth science, solar physics, space plasama, and microgravity.

• How Things Work
  Not a graphic in sight. This site is by Louis Bloomfield, author of the book, "How Things Work: The Physics of Everyday Life." And that's what he does, explains how things work.

• The Laws Of Science List
  No pretty pictures here. The Laws List is exactly what it claims to be - a glossary of most laws,rules, and concepts of physics and astronomy that delineate the nature of reality itself.

• Amazing Space
  Amazing Space is a set of web-based activities primarily designed for classroom use. Current activities include: find out what light color can tell you about stars in Star Light, Star Bright; learn about the objects that make up the Solar System by collecting Trading Cards; train to be a scientist by enrolling in the Hubble Deep Field Academy; and much more.

• The Nine Planets
  The Nine Planets is a multimedia tour of the solar system. An overview of the history, mythology, and current scientific knowledge of each of the planets and moons in our solar system.

• Chemicool Periodic Table
  The Chemicool Periodic Table is a reference that is more handy than that musty old book on the shelf. There's a colorful image map and all the things you'd expect from such a reference, such as atomic number and weight, desity and transition states. This link also contains energy levels, electron configuration, physical properties, standard reactions, radius, thermal and electrical conductivity, relative abudance, and estimated cost.

• Water Science for Schools
  This link is for anyone who wants to find out more about the many aspects of water, from what it is to how we use it. The site uses pictures, data, maps, and an interactive center to help convey information.

• MI-Net (Marine Institute)
  A mega marine resource for teachers and students. Resources range from oceanography to downloadable activities for teachers.

• The Heart: An Online Exploration
  Listen to healthy and diseased hearts, view Quicktimes of open heart surgery and echocardiograms, review x-rays, learn how the heart works, even take an animated trip down a coronary artery.

• Starry Nights
  The home page of the Allentown School District Planetarium. Eclipses, Solar System, Comets, Meteors/Meteorites/Asteriods, state-by-state and world country "live" video weather-cam direct links, and much more.

• Students for the Exploration and Development of Space (SEDS)
  Tour the galaxy, space images, rocketry, resource guides, and other space related resources.

• 3-D Insects
  3-dimensional insects are presented using the Virtual Reality Modeling Language (VRML). You can view video (QuickTime) if you click the "movie" botton. Pages with movies also contain links to the information about the insect you are viewing.

• Galileo K-12 Educators's Resources
  Galileo is a spacecraft studying Jupiter's atmosphere, moons, and magnetic envirorment. The spacecraft's orbiter will spend the next two years orbiting the giant planet, and returning a steady stream of images and scientific data.

• NASA The National Aeronautics & Space Administration
  NASA is committed in sharing the unique knowledge that flows from its aeronautics and space research.

• SciCentral
  A link to science and engineering resources. SciCentral constitutes a gateway to over 50,000 sites pertaining to over 120 specialties in science and engineering.

• Cornell Theory Center Math and Science Gateway:Biology
  Topics include vertebrates, invertebrates, ecology, plants & fungi, and molecular biology.

• Cornell Theory Center Math and Science Gateway:Earth & Environmental Sciences
  Topics include geology and soil science, oceans, lakes, and wetlands, and physical geography.