Astronomy & Space - (Top)
PK = PreK | E = Elementary | M = Middle School | P = For Parents/Teachers/Caregivers
Earth and Moon Viewer. - http://www.fourmilab.ch/earthview/vplanet.html M
Galileo: Journey to Jupiter. - http://www2.jpl.nasa.gov/galileo/ M
Hubble Site. - http://hubblesite.org/ E / M
NASA Kids. - http://kids.msfc.nasa.gov/ E
NASA Laugh and Learn. - http://spaceplace.nasa.gov/en/kids/ E / M
NASA Quest. - http://quest.arc.nasa.gov/ M
NASA. - http://www.nasa.gov/externalflash/Vision/index.html M
National Air and Space Museum. - http://www.nasm.si.edu/ E / M
Planet Quest - http://planetquest.jpl.nasa.gov/ M / P
Science @ NASA. - http://science.nasa.gov/ M
SETI Institute. - http://www.seti.org/ M
Space Day. - http://www.spaceday.org/index.html E / M
Space Today Online. - http://www.spacetoday.org/ E / M
Star Journey. - http://www.nationalgeographic.com/features/97/stars/ M
Stardate.org - http://stardate.org/ M
The Constellations and Their Stars. - http://www.astro.wisc.edu/~dolan/constellations/ M
The Messier Catalog. - http://seds.lpl.arizona.edu/messier/Messier.html M
The Nine Planets. - http://www.nineplanets.org/ M
Views of the Solar System. - http://www.solarviews.com/ss.html E / M
Virtual Science Center. - http://www.chabotspace.org/vsc/ E
Windows to the Universe. - http://www.windows.ucar.edu/ E / M
Women of NASA. - http://quest.arc.nasa.gov/women/intro.html E / M

Biology - (Top)
PK = PreK | E = Elementary | M = Middle School | P = For Parents/Teachers/Caregivers
4-H Embryology. - http://lancaster.unl.edu/4h/Embryology/ E
A Guided Tour of the Visible Human. - http://www.madsci.org/~lynn/VH/ M
BAM! Body and Mind. - http://www.bam.gov/flash_dan.html E / M
Bugs in the News! - http://people.ku.edu/~jbrown/bugs.html M
Cats. - http://www.nationalgeographic.com/features/97/cats/ M
Cells Alive! - http://www.cellsalive.com/ M
Dairy Council of California Activities Page. - http://www.dairycouncilofca.org/activities/index.html E / M
Desert Life. - http://www.desertusa.com/life.html E / M
Eureka Science: I Can Do That! - http://www.eurekascience.com/ICanDoThat/ M
Human Anatomy Online. - http://www.innerbody.com/htm/body.html M
Human Genome Project. - http://www.ornl.gov/sci/techresources/Human_Genome/home.shtm M
Infection, Detection, Protection. - http://www.amnh.org/nationalcenter/infection/ E / M
KidsHealth.org. - http://www.kidshealth.org/ E / M
MBGnet-Kids Page. - http://mbgnet.mobot.org/ E / M
Melissa Kaplan’s Herp Care. - http://www.anapsid.org/ E
Powerful Bones. - http://www.cdc.gov/powerfulbones/index2.html E / M
The Gator Hole. - http://home.cfl.rr.com/gatorhole/ E / M
Wonders of the Seas. - http://www.oceanicresearch.org/lesson.html E / M

Chemistry & Physics - (Top)
PK = PreK | E = Elementary | M = Middle School | P = For Parents/Teachers/Caregivers
A Periodic Table of the Elements. - http://pearl1.lanl.gov/periodic/default.htm E / M
Chem4Kids. - http://www.chem4kids.com/ E / M
Physics Life. - http://www.physics.org/Physics_Life/Web/physics_life/life.asp E
Science Is Fun. - http://scifun.chem.wisc.edu/scifun.html E
Strange Matter. - http://www.strangematterexhibit.com/ E / M
The Periodic Table of the Elements on the Internet. - http://chemicalelements.com/ E / M

General Science - (Top)
PK = PreK | E = Elementary | M = Middle School | P = For Parents/Teachers/Caregivers
A Kid's Wilderness Survival Primer. - http://www.equipped.org/kidsrvl.htm E / M
About Rainbows. - http://www.unidata.ucar.edu/staff/blynds/rnbw.html E / M
Bill Nye the Science Guy. - http://www.billnye.com/core.html?flashtarget=core.html&noflashtarget=noflash.html E / M
Brain Pop. - http://www.brainpop.com/ E / M
Building Big. - http://www.pbs.org/wgbh/buildingbig/ E / M
Consumer Reports Online for Kids. - http://www.zillions.org/ E / M
Cool Science for Curious Kids. - http://www.hhmi.org/coolscience/ E / M
Don't Buy It. - http://pbskids.org/dontbuyit/ E / M
Dragonfly. - http://www.units.muohio.edu/dragonfly/ E / M
Earth Science Explorer. - http://www.cotf.edu/ete/modules/msese/explorer.html E / M
Edheads Simple Machines. - http://www.edheads.org/activities/simple-machines/index.htm E / M
EIA Kid's Page. - http://www.eia.doe.gov/kids/index.html E / M
Energy Quest. - http://www.energyquest.ca.gov/ E / M
How Stuff Works. - http://www.howstuffworks.com/ E / M
Ideas and Activities from the Science Museum of Minnesota. http://www.smm.org/explore/ E
IEEE Virtual Museum. - http://www.ieee-virtual-museum.org/ E / M
It's My Life. - http://pbskids.org/itsmylife/ E / M
Kids Regeneration Network. - http://www.kidsregen.org/ E / M
Lawrence Hall of Science. - http://www.lawrencehallofscience.org/kids/ E / M
Mad Scientist Network. - http://www.madsci.org/ E / M
Moo Milk. - http://www.moomilk.com/ E
National Geographic Kids. - http://www.nationalgeographic.com/kids/ E / M / P
Plastic Fork Diaries. - http://www.plasticforkdiaries.org/index_flash.cfm E / M
Playing With Time. - http://www.playingwithtime.org/ E / M
Science News for Kids - http://www.sciencenewsforkids.org/ E / M
Scientific American. - http://www.sciam.com/ E
SodaConstructor. - http://sodaplay.com/constructor/index.htm E
The Children's Museum of Indianapolis Fun On-Line Page. - http://www.childrensmuseum.org/kids/games.htm E / M
The Office of Naval Research and Technology Focus. - http://www.onr.navy.mil/focus E / M
The Why Files. - http://whyfiles.org/ M
Wright Again. - http://wings.avkids.com/Book/Wright/ E / M
You Can with Beakman & Jax. - http://www.beakman.com/ E / M

Geology - (Top)
PK = PreK | E = Elementary | M = Middle School | P = For Parents/Teachers/Caregivers
Earthquakes for Kids & Grownups. - http://earthquake.usgs.gov/4kids/ E / M
Savage Earth (PBS). - http://www.pbs.org/wnet/savageearth/ M
The Mineral Gallery. - http://mineral.galleries.com/default.htm M
Volcano World. - http://volcano.und.nodak.edu/ E / M

Science Experiments - (Top)
PK = PreK | E = Elementary | M = Middle School | P = For Parents/Teachers/Caregivers
A Science Fair Project Resource Guide. - http://www.ipl.org/youth/projectguide/ E / M
Experimental Science Projects: An Introductory Level Guide. http://www.isd77.k12.mn.us/resources/cf/SciProjIntro.html E / M


Weather & Environment - (Top)
PK = PreK | E = Elementary | M = Middle School | P = For Parents/Teachers/Caregivers
Eco Kids Online. - http://www.ecokids.ca/pub/index.cfm E
Environmental Education for Kids! (EEK!). - http://www.dnr.state.wi.us/eek/ E / M
FEMA for Kids. - http://www.fema.gov/kids/ E
Florida Department of Environmental Protection Kid's Page. - http://www.dep.state.fl.us/secretary/kids/default.htm E
Hurricane Hunters. - http://www.hurricanehunters.com/ E / M
Kids F.A.C.E. - http://www.kidsface.org/ E
POPClock Projection. - http://www.census.gov/main/www/popclock.html E / M
Sierra Club. - http://www.sierraclub.org/ M
SnowCrystals - http://www.snowcrystals.com/ E / M
The Green Squad. - http://www.nrdc.org/greensquad/ E / M
The Weather Dude. - http://www.wxdude.com/ E
Tsunami. - http://www.geophys.washington.edu/tsunami/intro.html M
Ways of Knowing Trail. - http://www.brookfieldzoo.org/pagegen/wok/ways_index.html M
Weather Wiz Kids. - http://www.weatherwizkids.com/ E / M