1.     Amazing Space, 6-12
http://amazing-space.stsci.edu/
This site contains a variety of web-based space lessons and activities for grades 6-12.

2.     American Field Guide: Teacher Resources
http://www.pbs.org/americanfieldguide//teachers/
American Field Guide is a tremendous resource for you and your students. Embedded within this site you will find lesson plans that weave segments of video together into units of inquiry around specific topics. The lessons in the units of inquiry were all written by high school teachers and draw upon national and state standards for science learning. We hope you enjoy integrating streaming video into learning opportunities for you and your students.

3.     Athena, K-12
http://vathena.arc.nasa.gov/
This site features online science lessons and activities on oceans, Earth, weather, atmosphere, and astronomy.

4.     ExplorA-Pond, K-12
http://www.uen.org/utahlink/pond/
An online internet collaborative project where students explore pond ecology.

5.     Frank Potter’s Science Gems, K-12
http://sciencegems.com
Hundreds of lesson plans, WebQuests, and other science resources sorted by category, topic, and grade level.

6.     Gateway of Educational Materials, K-12
http://thegateway.org/
This site is sponsored by the U.S. Department of Education and provides a searchable database to hundreds of lesson plans, curriculum units, and other Internet resources.

7.     The K-8 Aeronautics Internet Textbook, K-8
http://wings.avkids.com/
This site contains a comprehensive study of the science of aeronautics for elementary and middle school students. 

8.     Performance Assessment Links in Science (PALS), K-12
http://pals.sri.com/
PALS is an on-line, standards-based, continually updated resource bank of science performance assessment tasks indexed via the National Science Education Standards (NSES) and various other standards frameworks.

9.    Physics Classroom, 9
http://physicsclassroom.com/
This site provides lessons, tutorials, quizzes, multimedia lessons, tutorials, quizzes, multimedia animations, and practice activities.

10. SeaWorld/Busch Gardens Teacher Guides, K-12
http://seaworld.org/just-for-teachers/guides/index.htm
This site provides more than a dozen guides for teaching about animals and the environment.

11.USGS Lesson Plans and Activities, K-12
http://www.usgs.gov/education/
The U.S. Geological Survey provides life science, earth science, and geography lesson plans and activities based on the National Education Standards.

12.Volcano World, 4-12
http://volcano.und.nodak.edu/vw.html
Volcano World offers volcano-related lessons and classroom activities for grades 4-12.

13.Ask Dr. Universe, K-12
http://www.wsu.edu/DrUniverse/Contents.html
You can ask Dr. Universe almost anything at this website!

14.Astronomy Picture of the Day, K-12
http://antwrp.gsfc.nasa.gov/apod/astropix.html
Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

15.BrainPOP, K-8
http://www.brainpop.com/
This site presents animated movies, comics, experiments, quizzes and fun facts for kids ages 6 to 14.

16. Cells Alive!, 7-12
http://cellsalive.com/
This site has information, images, and videos on viruses, bacteria, human cells, and parasites.

17.Electronic Zoo, K-12
http://netvet.wustl.edu/e-zoo.htm
This site features a comprehensive catalog of pictures and information about animals for grades K-12.

18. ENC!, K-12
http://enc.org/
The Eisenhower National Clearinghouse (ENC) provides K-12 teachers with a central source of information on mathematics and science curriculum materials.

19.Fear of Physics, K-12
http://www.fearofphysics.com/
This is an interactive, highly visual, and non-technical way for students of all ages to learn about the laws of physics in action.

20.Froggy Page, K-12
http://frogsonice.com/froggy/
A comprehensive collection of resources about frogs.

21.Froguts, 6-12
http://froguts.com
Online dissection

22.Fun Science Gallery, 7-12
http://funsci.com/texts/index_en.htm
A collection of scientific instruments and experiments to make at home and school.

23.How Stuff Works, 5-12
http://www.howstuffworks.com/
This site provides a series of illustrated articles explaining the principles behind many devices from cell phones and modems to air conditioners and refrigerators.

24.Learning From the Fossil Record, K-12
http://www.ucmp.berkeley.edu/fosrec/fosrec.html
This site provides online resources and collection of paleontology activities for students and teachers.

25.National Aeronautics and Space Administration (NASA) Websites:
http://www.nasa.gov/externalflash/dor/index_noaccess.html
NASA Kids: http://kids.msfc.nasa.gov/
NASA Quest: http://quest.arc.nasa.gov/
NASA Spacelink: http://spacelink.nasa.gov/

26.Periodic Table of Comic Book, 5-12
http://www.uky.edu/Projects/Chemcomics/

27.Science Explorer, 1-6
http://www.exploratorium.edu/science_explorer/
This site contains a collection of hands-on activities with step-by-step instructions that elementary school children can do at home.

28.Simple Machines, K-8
http://www.fi.edu/qa97/spotlight3/
This site provides information, demonstrations, and experiments about simple machines.

29.Star Child, K-6
http://starchild.gsfc.nasa.gov/docs/StarChild/StarChild.html
An astronomy resource for teachers and students.

30.Why Files, 5-12
http://whyfiles.org/
An online science journal exploring the science behind the headlines every week.

31.Windows to the Universe, K-12
http://www.windows.ucar.edu/
This site provides a rich array of documents, images, movies, animations, and data that explore the earth and space sciences for grades K-12.

32.The Yuckiest Site on the Internet, K-8
http://yucky.kids.discovery.com/
This site offers a teacher corner, activities, information, and illustrations