CK-12 Foundation
Ck 12: Earth Science: Eclipses Study Guide
Review the main concepts of both solar and lunar eclipses.
NASA
Nasa: Eclipses
The periodicity and recurrance of eclipses is governed by the Saros cycle, a period of approximately 6,585.3 days (18 years 11 days 8 hours). It was known to the Chaldeans as a period when lunar eclipses seem to repeat themselves, but...
Other
Quiz: Tides, Eclipses, Day and Night, Seasons
Take this 15 question multiple choice quiz on tides, eclipses and seasons.
Space.com
Moon Facts: Fun Information About the Earth's Moon
How did the moon form? Learn the answer to this and numerous other fun facts in this article from Space.com.