500 - Natural sciences

• Exploratorium
  http://www.exploratorium.edu
• The Field Museum
  http://www.fmnh.org/
• The Franklin Institute
  http://sln.fi.edu
• Thinking Fountain from the Minnesota Science Museum is a great source for science activities and projects
  http://www.sci.mus.mn.us/sln/tf/nav/thinkingfountain.html

510 - Mathematics

• Some look like math and some don't but the activities at this site all explore the same brain power your math teacher is interested in.
  http://www.archimedes-lab.org/index.html
• Practice your math facts with this flash card game. Use the keypad to enter your answer and then click in the white square to go to the next problem.
  http://cybersleuth-kids.com/mathflash/mathflash.html
• Both math and science activites can be accessed from this Jefferson Lab site
  http://education.jlab.org/indexpages/elementgames.html

520 - Astronomy

• Welcome to the Planets
  http://pds.jpl.nasa.gov/planets/
• NOVA program on the exploration of space
  http://www.pbs.org/wgbh/nova/universe/
• The Nine Planets
  http://seds.lpl.arizona.edu/nineplanets/nineplanets/nineplanets.html
• Star Child
  http://starchild.gsfc.nasa.gov/docs/StarChild/StarChild.html
• Pine Mountain Observatory
  http://pmo-sun.uoregon.edu/
• NASA
  http://www.nasa.gov/
• The NASA site for kids
  http://kids.msfc.nasa.gov/
• Discover the important events from any given day from the beginning of space exploration, some are evn animated, at NASA's space calendar
  http://www.jpl.nasa.gov/calendar
• Cool stuff from the California Institute of Technology
  http://coolcosmos.ipac.caltech.edu/

530 - Physics

540 - Chemistry

• Periodic Table with links to information about each element
  http://www.webelements.com/webelements/scholar/index.html

560 - Geology / Prehistoric Life

Oceanography

• the Ocean World from the Smithsonian
  http://www.webelements.com/webelements/scholar/index.html
  

  Paleontology

• Geological timeline with lots of links
  http://www.EnchantedLearning.com/subjects/Geologictime.html
• A dinosaur glossary in alphabetical order
  http://www.EnchantedLearning.com/subjects/dinosaurs/glossary/
• Field Museum site about the largest T.Rex named Sue
• Field Museum tour of life before he dinosaurs
• Field Museum tour of life in the time of the dinosaurs
• Field Museum exhibit tour on prehistoric life after the dinosaurs
• National Geographics dinorama is more graphics than information

  Volcanoes

• Volcano World is a very complete site but very slow to download
  http://volcano.und.nodak.edu/vw.html
• CAG enterprises site includes up to date information from many stations recording seismic activity. The page is designed funny so make sure you scroll down.
  http://www.cagenterprises.com/quake.html
• There are great volcano graphics on this USGA site.
  http://pubs.usgs.gov/gip/volc/types.html

  Earthquakes

• This very informational site has lots of animations to demonstate earthquakes.
  http://www.crustal.ucsb.edu/ics/understanding/
• The US geological service site is great
  http://earthquake.usgs.gov/bytopic/
• A great glossary of terms with images
  http://earthquake.usgs.gov/image_glossary/

Weather

• The national hurricane center is a starting point for current and historical information.
  http://www.nhc.noaa.gov/
• From NASA's observatorium - a great hurricane site
  http://observe.arc.nasa.gov/nasa/earth/hurricane/intro.html
• The NASA site on hurricanes
  http://earthobservatory.nasa.gov/Library/Hurricanes/
• Start at the national snow and ice data center and link to lots of weather information.
  http://nsidc.org/

570 - Biology

• Tidepool is an online environmental newspaper.
• A whole page of links on CELLULAR RESPIRATION
  http://www.ftexploring.com/links/respiration.html

580 - Plants

• plant database from the United States department of Agriculture
• tree identification site

590 - Animals

• Creature World
• Endangered Species homepage with links to agencies and a search option