CK-12 Foundation
Ck 12: Earth Science: Sun
[Free Registration/Login may be required to access all resource tools.] Provides an introduction of the sun's basic properties.
CK-12 Foundation
Ck 12: Earth Science: Interior of the Sun
[Free Registration/Login may be required to access all resource tools.] Identify the layers of the sun's internal structure.
Other
Review Game Zone: Earth/environmental Science Ncfe Review Part 1
Take this 10 multiple choice question quiz on earth and environmental science.
NASA
Nasa Star Child: Star Child
StarChild from NASA defines and describes the Solar System in a simple and easy-to-understand manner. The website is broken down into two versions for the student, grade school and junior high.
Kidport
Kidport Reference Library: Energy
A simple introduction to energy, offering information on hydro-electric energy, fossil fuels, nuclear power, solar energy, and wind energy.
American Association of Physics Teachers
Com Padre Digital Library: Physics to Go: Explore Physics on Your Own
Contains a full physics curriculum with links to games, webcasts, and activities. By creating a free account, students and teachers can create their own personal collection of resources.