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Alzheimer’s: Inside the Brain

Alzheimer's is a disease that attacks the brain and is the most common form of dementia. What happens in the brain of a person with Alzheimer’s disease? Take this tour to learn how the brain works and how Alzheimer's affects it.

Animated Neurons

Animated Neurons provides an interactive study guide of the human nervous system.

Antarctica: The World’s Last Great Wilderness

AntarcticaAntarctica is a frozen, windswept continent, so hostile and remote that it has no permanent inhabitants. Scientists working here have made many discoveries from studying Antarctica’s land and atmosphere, and from clues buried beneath the ice. These discoveries also reveal signs of changes in the future that could affect us all.

Antarctic Program

Antarctica is the coldest, windiest, harshest continent, and with little precipitation (roughly 2 inches per year) is the driest place on earth. It is roughly 14 million sq km (5.4 million sq. mi.), has an average elevation of more than 2,000 m (6,500 ft.), and 98% of the landmass is covered by an ice sheet.


Avibase is an extensive database information system about all birds of the world, containing over 37 million records about 11,000 species and 22,000 subspecies of birds, including distribution information for 20,000 regions, taxonomy, synonyms in several languages and more.

Becoming Human

Becoming Human is a journey through the story of human evolution in a broadband documentary experience . The Institute of Human Origins (IHO) conducts, interprets and publicizes scientific research on the human career. Through research, education, and the sponsorship of scholarly interaction, IHO advances scientific understanding of our origins and its contemporary relevance.

Blood: Epic Story of

Blood is one of the most revolutionary features in our evolutionary history. Over hundreds of millions of years, the way in which blood does its job has changed over and over again. As a result, we animals have our familiar red blood. But also blue blood. And purple, and green, and even white.

Brain Atlas

This Brain Atlas is an information resource for central nervous system imaging which integrates clinical information with magnetic resonance (MR), x-ray computed tomography (CT), and nuclear medicine images. The Atlas project is made possible in part by the Departments of Radiology and Neurology at Brigham and Women's Hospital, Harvard Medical School, the Countway Library of Medicine, and the American Academy of Neurology.

Brain: The Secret Life of the

The Secret Life of the Brain, a David Grubin Production, reveals the fascinating processes involved in brain development across a lifetime. The five-part series, informs viewers of exciting new information in the brain sciences, introduces the foremost researchers in the field, and utilizes dynamic visual imagery and compelling human stories to help a general audience understand otherwise difficult scientific concepts.

Changing the Face of Medicine

Discover the many ways that women have influenced and enhanced the practice of medicine. The individuals featured in Changing the Face of Medicine provide an intriguing glimpse of the broader community of women doctors who are making a difference.

Chemical Elements Table

The periodic table is a table of the Chemical Elements in which the elements are arranged by order of atomic number in such a way that the periodic properties (chemical periodicity) of the elements are made clear. The standard form of the table includes periods (usually horizontal in the periodic table) and groups (usually vertical). Elements in groups have some similar properties to each other.


Basic chemistry help is available here for high school or college students. Chemtutor begins with the fundamentals and gives expert help with the most difficult phases of understanding your first course in chemistry.


At a broad level, a Creationist is someone who believes in a god who is absolute creator of heaven and earth, out of nothing, by an act of free will. Creationists are strongly opposed to to a world brought on by evolution, particularly to a world as described by Charles Darwin in his Origin of Species. Wonderful resource provided by Stanford Encyclopedia of Philosophy.

DNA Discovery

Your body is made of trillions of building blocks called cells, the same way a house is built from bricks. There are many types of cells: brain cells, heart cells, skin cells, and more! Almost every cell has DNA, or deoxyribonucleic acid. Most cells have the same DNA but each type of cell "reads" different parts of it. DNA tells the cell how to develop and function.

Encyclopedia of Life

Our knowledge of the many life-forms on Earth - of animals, plants, fungi, protists and bacteria - is scattered around the world in books, journals, databases, websites, specimen collections, and in the minds of people everywhere. Imagine what it would mean if this information could be gathered together and made available to everyone – anywhere – at a moment’s notice. This dream is becoming a reality through the Encyclopedia of Life.


Evolution determines who lives, who dies, and who passes traits on to the next generation. The process plays a critical role in our daily lives, yet it is one of the most overlooked -- and misunderstood -- concepts ever described. The Evolution project's eight-hour television miniseries travels the world to examine evolutionary science and the profound effect it has had on society and culture.

Explore Geology

The Exploratorium is a museum of science, art, and human perception located in San Francisco, California. We create tools and experiences that help you to become an active explorer: hundreds of explore-for-yourself exhibits; a Web site with over 25,000 pages of content; film screenings; workshops for lifelong learners including day camps for kids and family investigations; evening art and science events for adults—plus much more.

Fear of Physics

With physics, it seems like everyone wants to jump right in and start discussing black holes and Einstein's relativity. Although exciting, these are not the best places to start learning about physics. This section allows you to explore just the basic interactions of physics, involving simple objects. See what you can learn.

Frogs: A Chorus of Colors

Brilliant orange, bright blue, dazzling red—Frogs come in an astonishing array of colors. This vivid assortment of hues hints at the remarkable diversity that exists among the frog species inhabiting the globe. From lush rainforests to parched deserts, frogs are found in nearly every environment on Earth, and their survival strategies range from surprising to bizarre.

Geology of National Parks

Geology of National Parks has 3D and photographic tours, featuring park Geology and natural history.

Get Body Smart

Get Body Smart is an online textbook about human anatomy and physiology. The site allows students to visually learn about the human body using interactive animations.


Girlshealth.govGirlsHealth was created in 2002 by the U.S . Department of Health and Human Services’ (HHS) Office on Women’s Health (OWH) to help girls (ages 10 to 16) learn about health, growing up, and issues they may face. promotes healthy and positive behaviors in girls, giving them reliable and useful health information in a fun, easy-to-understand way.

Grand Canyon

The Grand Canyon, with its mile-high, multicolored rock walls, craggy cliffs, and sandy slopes, is the embodiment of nature's awesome power and surpassing beauty. Explore this site for more on this wonder of the natural world, including videos, interactive maps, feature film previews, and more.

Gray’s Anatomy

The Bartleby 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.


HelpGuide offers the guidance and encouragement you need to find hope, get motivated, take charge of your mental health, and start feeling better.

History & People: Scientists and Philosophers

Who made the first star map? When did people know that the Earth was round? When were sunspots discovered? History & People's links will lead you to biographies of scientists who lived at different times through history. Discover the people who made science history!

HIV Info

HIV Info is a U.S. Department of Health and Human Services project that offers the latest federally approved information on HIV/AIDS clinical research, treatment and prevention, and medical practice guidelines for the researching of HIV/AIDS.

How Many Animals Are There?

There is something amazing about being outside and seeing how many different animals, insects, birds, fish, and more are actually present in our world.

International Space Station

Welcome aboard NASA’s International Space Station. Did you know that people have been living and working in space around the clock, every day single day, for more than ten years? During the past decade, 15 nations have come together, setting aside boundaries and differences, to design, assemble, occupy, and conduct research inside and outside of the largest and longest inhabited object to ever orbit the Earth - the International Space Station.

Microscope Imaging Station

A primary goal of the Microscope Imaging Station is to open a door to the wonder of the microscopic world and allow you to explore it. By empowering you with the instruments to explore this unfamiliar universe, we seek to recreate some of the excitement and wonder that the earliest biological researchers found as they discovered another world all around them.

Mind Matters

Mind Matters invites young teens to take a scientific journey to learn about the brain’s complex responses to specific drugs, including cocaine, hallucinogens, inhalants, marijuana, nicotine, opiates, prescription drugs, and steroids

Molecular Workbench

The Molecular Workbench (MW) software is a modeling tool for designing and conducting computational experiments across science. It provides an authoring system for instructional designers to create
and publish model and simulation-based curriculum materials and delivers an interactive learning environment that supports
science inquiry.


Nanotechnology is the engineering of functional systems at the molecular scale . In its original sense, 'nanotechnology' refers to the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products.

Nanotechnology: The Power of Small

How will nanotechnology change our lives? The Power of Small is a 3-part Fred Friendly Seminar television series.

National Geographic

National Geographic provides free maps, photos, videos and daily news stories, as well as articles and features about animals, the environment, cultures, history and more.

Nature: Deep Jungle

In Deep Jungle: New Frontiers, see the jungle through the eyes of scientists who are using a new generation of high-tech tools to reveal long-hidden secrets.

Nature: Interactives and Games

At NATURE Interactive Online, visitors can stream full episodes of NATURE programs, watch behind-the-scenes video exclusives, view program excerpts and find fun interactive content, teacher lesson plans, and more.

Nuclear Energy Resources

This Nuclear Energy Resources website provides a wealth of information for teachers and students who want to learn the basics of nuclear physics. The site includes tutorials about atomic physics, radiation, fission and fusion, cosmic rays, and antimatter; Online Nuclear Science Wall Chart with companion teacher’s guide; guides to conducting basic hands-on experiments in nuclear science that include study questions; and a glossary of nuclear science terms and more.


OLogy means "the study of." And here on the American Museum of Natural History's OLogy Web site, you can study and explore many cool OLogies.


PhysClips: Mechanics with animations and video film clips. Kinematics and dynamics are presented here in multimedia, to teach at introductory and also at deeper levels. Individual video clips and animations are suitable for use by teachers, while students may use the whole package for self instruction or for reference.

Prehistoric Time Line

Humans have walked the Earth for 190,000 years, a mere blip in Earth's 4.5-billion-year history . A lot has happened in that time. Earth formed and oxygen levels rose in the foundational years of the Precambrian. The productive Paleozoic era gave rise to hard-shelled organisms, vertebrates, amphibians, and reptiles . Dinosaurs ruled the Earth in the mighty Mesozoic. And 64 million years after dinosaurs went extinct, modern humans emerged in the Cenozoic era.

Rain Forest at Night

After dark in the Borneo Rain Forest, unique sounds, smells and sights emerge as animals unseen by day move about in search of food. Rain forests are home to more than half of all plant and animal species, yet they are being destroyed at a staggering rate. Every year, millions of acres of rain forest - and the plants and animals within them - are lost forever.

Rock Cycle Interactive

Learn how to distinguish between types of rocks and discover how rocks change over time.


eSkeletons provides an interactive environment in which to examine and learn about skeletal anatomy. The purpose of this site is to enable you to view the bones of both human and non-human primates and to gather information about them from our osteology database.

Sleep Disorders

SleepingDisAt some time, most of us have experienced what it’s like to have trouble falling asleep, to lie awake in the middle of the night, or feel sleepy and fatigued during the day . However, when sleep problems are a regular occurrence—when they get in the way of your daily routine and hamper your ability to function—you may be suffering from a Sleep Disorder.

Solar Eclipse

A total Solar Eclipse—when the moon passes in front of the sun and blocks it completely—is an amazing sight. To see a total solar eclipse, you have to be in just the right spot on the earth. When you look up in the sky at the sun and the moon, you notice a strange coincidence—both look the same size in the sky.

UN Atlas of the Oceans

The UN Atlas of the Oceans is an information system designed for policy-makers, scientists, students and resource managers for sharing, exchanging and consulting information on oceans and coastal areas.

U.S. South Pole Station

This U.S. South Pole site from the National Science Foundation offers a glimpse of the earth’s coldest, highest, driest, and windiest continent, and the one least hospitable to human life.

Walk Through Time

A Walk Through Time chronicles the evolution of time measurement through the ages.

Water Science

Welcome to the U.S. Geological Survey's (USGS) Water Science School. We offer information on many aspects of water, along with pictures, data, maps, and an interactive center where you can give opinions and test your water knowledge.

Wind and Hydropower: How Wind Turbines Work

Wind Turbines operate on a simple principle. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity. Learn more here.

Wind Energy

The AWEA website strives to provide information on all facets of the Wind Energy industry, from small wind for individuals to large wind farm development.

WorldWide Telescope

It’s not a physical telescope — it’s a suite of free and open source software and data sets that combine to create stunning scientific visualizations and stories.

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