Let's learn Biology and Geology in English!
Monday, 15 September 2014
Mr Eclipse.com: Lunar eclipses for beginners.
http://www.mreclipse.com/Special/LEprimer.html
What is an eclipse of the Moon? What causes eclipses and why? How often do eclipses happen and when is the next eclipse of the Moon? You'll learn the answers to these questions and more in MrEclipse's primer on lunar eclipses.
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