Enchanted Learning
Enchanted Learning: The Planets
This survey of the planets includes all the basics, size, mass, atmosphere, length of day, and the like. It features interactive activities and learning exercises and compares all of the planets in colorful tables.
BBC
Bb Ci Space: Solar System
Take a journey through the solar system with this interactive guide. Includes planetary history, "travel information," "tourist highlights," and video clips. Games and quizzes include a Solar System jigsaw that prompts the student to...
NASA
Nasa: Solar System Exploration: Planets
This impressive compilation of ideas is a great source for space science. Loaded with extra links for further information on the solar system.
NASA
Nasa: Our Solar System
This thorough look at our solar system has numerous links to a variety of topics that are updated periodically.