| | (Sample link) NASA for high school students
http://www.nasa.gov/audience/forstudents/9-12/features/index.html
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| | (Sample link) National Geographic
http://www.nationalgeographic.com
| |
| | AP quiz help
http://www.sciencegeek.net/APchemistry/APtaters/directory.shtml
| |
| | http://www.studystack.com/studytable-4736
| |
| | Virtual Chemistry Text Book
http://www.chem1.com/acad/webtext/virtualtextbook.html
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| | Helping you to understand Chemistry
http://www.chemguide.co.uk/index.html
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