Sources

Spaulding, Nancy E., and Samuel N. Namowitz 556-557. Earth Science. Evanston, Illinois: 
     MCDOUGAL LITTEL, 2005. Print.

Dunbar, Brian. "Moon." NASA. N.p., 29 Nov. 2007. Web. 23 May 2010.
     
https://www.nasa.gov/worldbook/moon_worldbook.html.

Full Moon. 2 Dec. 2009. Coachrhyan.posterous. N.p., 2 Dec. 2009. Web. 23 May
     2010.
https://www.noao.edu/image_gallery/images/d3/FullMoon.jpg.

Giant Impact. 11 Aug. 2009. Blogspot. N.p., 11 Aug. 2009. Web. 23 May 2010. 
     
https://2.bp.blogspot.com/_Fz9Sfej4jGM/SoG0cjMgHrI/AAAAAAAAAFQ/fiHD1t9IO6M/s1600-h/giant_impact.jpg.

Big Whack. 17 July 2009. Counter-Force. N.p., 17 July 2009. Web. 23 May 2010.
     
https://media.photobucket.com/image/big%20whack/sparksmarco/BigWhack.jpg.

Animation of a GIANT impact . youtube. Google, 10 Aug. 2009. Web. 23 May 2010.
     
https://www.youtube.com/watch?v=xvc7Wf1xj4c.

"Observe images illustrating the impact theory of the moon's formation."
     Classzone. N.p., 8 Aug. 2005. Web. 23 May 2010. 
     
https://www.classzone.com/books/earth_science/terc/content/visualizations/es2501/es2501page01.cfm.

Interior of the Moon. 6 May 2008. optcorp. N.p., 13 Aug. 2008. Web. 23 May 2010.
     
https://www.optcorp.com/images2/articles/full-AAAKKNJO.GIF.

Moon Phases. 6 May 2008. Gwit. N.p., 6 Aug. 2008. Web. 23 May 2010.
     
https://www.gwit.org/students/fremont/assign/moon/moonphases.jpg.

Lunar Phases Stimulator. astro. N.p., 11 Sept. 2009. Web. 23 May 2010.
     
https://astro.unl.edu/naap/lps/animations/lps.swf.

Yuki, Shinobi Akira. Phases of the Moon. youtube. Google, 11 Mar. 2008. Web. 23
     May 2010.
https://www.youtube.com/watch?v=Fdv8V8gQa9w&feature=related.

Moon Crater. 29 Nov. 2007. NASA. N.p., 29 Nov. 2007. Web. 23 May 2010.
     
https://www.nasa.gov/worldbook/moon_worldbook.html.

Spaulding, Nancy E., and Samuel N. Namowitz 564-565. Earth Science. Evanston, Illinois:
     MCDOUGAL LITTEL, 2005. Print.

Lunar Eclipse. 28 Feb. 2008. wikimedia. N.p., 28 Feb. 2008. Web. 23 May 2010. 
     
https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Geometry_of_a_Lunar_Eclipse.svg/712px-Geometry_of_a_Lunar_Eclipse.svg.png.

Partial Eclipse. 3 Mar. 2007. ASTROSOC. N.p., 3 Mar. 2007. Web. 23 May 2010.
     
https://students.bugs.bham.ac.uk/astrosoc/site_images/Umbra01.gif.

Partial Lunar Eclipse 31 Dec 09/1st Jan 09. youtube. Google, 31 Dec. 2009. Web.
     24 May 2010.
https://www.youtube.com/watch?v=tP_fkEvcfYI&feature=related.

Total Lunar Eclipse. youtube. Google, 20 Feb. 2007. Web. 24 May 2010.
     
https://www.youtube.com/watch?v=iC9RcpLO43s.

 Kiuhy8. moon structures. youtube. Google, 21 May 2010. Web. 1 June 2010.
     https://www.youtube.com/watch?v=mZMF7Fk7pac&feature=related.

The Universe S02E03 Mysteries Of The Moon (History Channel) Part One .
     youtube. Google, 11 Aug. 2009. Web. 1 June 2010.
     <https://www.youtube.com/watch?v=JZFzA3JORjM>.