Egyptian Mummies
This online article from the Smithsonian Museum explains the Egyptian mumification process.
http://www.si.edu/resource/faq/nmnh/mummies.htm

Egypt and the Ancient Near East Web Resources for Young People and Teachers
This is an excellent starting point for finding information about Egypt and the Ancient Near East cultures. The Oriental Institute of the University of Chicago created and continually maintains the site.
http://www-oi.uchicago.edu/DEPT/RA/ABZU/YOUTH_RESOURCES.HTML

Mesopotamia
You can learn about the peoples, cultures, and history of ancient Mesopotamia through the descriptions at this site.
http://www.wsu.edu:8080/~dee/MESO/CONTENT1.HTM