astronomy :

The Chinese zodiac was developed thousands of years ago based on ancient Chinese astronomy. There are twelve years in the Chinese Zodiac and each year is represented by an unique animal which predicts the personality of those born in that year.
http://www.chinesezodiac.com/

Astronomy for kids online lets you explore the solar system for kids. You'll learn about black holes and the Big Bang theory. Discover neat Astronomy facts about Hubble Space Telescope. Even get the definition of Astronomy from an Astronomy dictionary. Learn about solar eclipses too.
http://www.astronomy-for-kids-online.com