General Science Websites
Join the Happy Scientist Educator Robert Krampf, “the Happy Scientist,” shows visitors to his Web site that science can be fun and understandable
Science activities that will really engage students.
Interactive Science Simulations: Might be higher than Elementary Level but you have to check out the Simulation under Electricity, Magnets & Circuits called the John Travoltage
Science to Music: Songs, tips, ideas, lyrics and sound files

eSkeletons is a great website produced by the Department of Anthropology at the University of Texas at Austin. eSkeletons features interactive models of mammal skeletons

Earth Science Websites
Shake, Rattle and Slide is an exceptional interactive from the University of Illinois Extension focused on volcanoes, earthquakes and glaciers.
Field Trip Earth is the global resource for teachers, students for wildlife conservation
Climate Change: The Threat to Life and A New Energy Future Kids Area

Investigate the Science of Snow Created by the American Chemical Society, the Chemistry of Snowflakes video tracks the formation of snowflakes from their origins in bits of dust in clouds that become droplets of water falling to Earth. The video explains that when the droplets cool, six crystal faces form, because water molecules bond in hexagonal networks when they freeze. Ice crystals grow fastest at the corners between the faces, fostering development of the six branches that exist in most snowflakes. As snowflakes continue to develop, the branches can spread, grow long and pointy, or branch off into new arms. As each snowflake rises and falls through warmer and cooler air, it thus develops its own distinctive shape. 

Immerse Students in an Ocean Expedition - Scientists and others are going into the deep-sea vents, and they’re hoping to bring students along for the ride. Dive and Discover, a website that provides research resources related to ocean exploration, has just begun its 15th expedition, this one exploring hydrothermal vents in the Pacific Ocean. The 14-day journey takes place in the East Pacific Rise, an ocean ridge about 600 miles south of Manzanillo, Mexico. The explorers are aboard a research vessel called Atlantis, from which pilots remotely control an underwater vessel named Jason. During the expedition, which runs until January 22, the work of scientists, ship crew members and engineers is being captured in video, photographs and daily written updates that are posted to the Dive and Discover site. Teachers and students are invited to share the classroom activities they develop around the exploration. The site also provides explanations of ocean phenomena related to the work, interactive illustrations to illuminate deep-sea features and animals, and a “Mail Buoy” that lets students communicate by email with the scientists at sea. According to expedition sponsor, The Woods Hole Oceanographic Institution, the work being shared on Expedition 15 fits into multiple parts of the Next Generation Science Standards for grades five through high school. 

Engineering Websites for Elementary
Build It & Bust It is a site about engineering. Here your students can design and test their own structures and share what they learn with others.

Science Experiments

Hey LHS Kids is a science activities website for kids developed by the Lawrence Hall of Science at UC Berkeley

Cell phones, iPods, TV's, Game stations- these are items that our students use but do they really know where the energy comes from?  General Motors and Discovery Education have discovered a series of lesson plans and activities to hel you explore how electricity is generated and stored and how it is poised to change how we live.


Life Science
Cells AliveAn Interactive Animation of Plant and Animal Cells 
Your Bones
The Visible Body: 3D Human Anatomy...AMAZING SITE!
Go Inside the Brain The Secret Life of the Brain presents a history of efforts to understand the brain, a three-dimensional tour of the brain, optical illusions and an animation showing how magnetic resonance imaging (MRI) works.
Life Is shows the extraordinary things animals and plants do.
What does it mean to be Human? Site on Human evolution
Tour Parts of a Cell- student site
Google Body Browser gives you a 360 degree view of the human body. You can turn on layers to see bones, muscles, organs, and the nervous system. You can turn on all the layers at the same time and alter the transparency of each layer. Turn on labels to have labels appear each time you click on a part of the body. For example, if I have the bones layer turned on along with the labels, when I click on a bone a label will appear. Watch this video to see the Google Body Browser in use

Solar System and Space Websites
The World Book at Nasa: World Book content with information about space and Earth science, aeronautics and space exploration subjects.
Around the Solar System- a collection of Photos
Sizing Up the Universe- helps students understand how big the planets are
Combine Literature with Science ExplorationStory Time From Space, with support from with the Center for the Advancement of Science in Space (CASIS), the nonprofit organization charged with managing US science research on the space station, will send children’s books and demonstrations to the International Space Station (ISS). While in space, astronauts will videotape themselves reading books to the children of Earth. The videos will be edited and placed in the Story Time From Space library, housed on the Story Time From Space website. Astronauts on the ISS will also conduct and videotape educational demonstrations to complement the science concepts in the Story Time From Space books. To make Story Time from Space even more useful to educators, the team will create a cross-content curriculum to support the Next Generation Science Standards. All of these materials, along with the videos from orbit, will be posted on the Story Time From Space website, providing easy access for educators, families, libraries, science centers and others. 

Weather Websites
Ice Stories- Dispatches from Polar Scientists

Water Websites
Mission H20 features several online games designed to teach about water conservation.

Health Websites
The University of Pennsylvania Health System provides nearly 200 video animations and explanations of injuries, diseases, and body systems.

In an effort to help elementary school teachers educate their students about germs and disease prevention (and to sell disinfectant) Clorox has developed a website for teachers. Clorox Classrooms offers ten lesson plans, four "take home" activities, and a couple of interactive whiteboard activities for K-5 classrooms.