the planets anna juarez clardy oct 30, 2008. inner planets earth
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References
• Comparing the Inner and Outer Planets. 100% Educational Videos (2004). Retrieved November 1, 2008, from Discovery Education: http://streaming.discoveryeducation.com/
• Microsoft Office Online: (2007). Clipart Retrieved October 20, 2008, from http://office.microsoft.com/en-us/clip/default.aspx?cag=1