Mr. Hill's Science Website
Solar System Fact Sheet
Here is a fantastic, educational handout packed with information and facts not only about the planets in our solar system, but also regarding major moons and their surface features, dwarf planets, comets, and asteroids.
NASA
Nasa: Imagine the Universe: Speed of Earth's Rotation
Presents an informative answer to the question "What is the speed of the turning of the Earth?"
CK-12 Foundation
Ck 12: Earth Science: Revolutions and Rotations of the Earth Study Guide
[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about how our understanding of the Earth's movements evolved from ancient times and what we know today. Includes some questions to check...