Here are some helpful links for your projects.

China

http://afe.easia.columbia.edu/
http://library.thinkquest.org/11576/chincont.html
http://civilizations.tripod.com/ancient_china.htm

India
http://www.harappa.com/indus/indus0.html
http://library.thinkquest.org/J002387/IndiaHome.htm
http://www.mohenjodaro.net/

Mesopotamia
http://www.bible-history.com/babylonia/BabyloniaNebuchadnezzars_Babylon.htm
http://www.vnc.qld.edu.au/enviro/sumer/2002.htm
http://www.phillipmartin.info/hammurabi/homepage.htm
http://www.historian.net/hxwrite.htm
http://lib.haifa.ac.il/www/art/ur.html
http://www.proteacher.com/cgi-bin/outsidesite.cgi?id=7796&external=http://www.ci.shrewsbury.ma.us/Sps/Schools/Central/Curriculum/ELEMENTARY/SOCIALSTUDIES/Mesopotamia%20html/ancient_mesopotamia.htm&original=http://www.proteacher.com/090097.shtml&title=Ancient%20Mesopotamia

Egypt
http://www.ancientegypt.co.uk/menu.html
http://nefertiti.iwebland.com/index.html
http://www.geocities.com/sseagraves/ancientegyptlessonplans.htm
http://www.aldokkan.com/egypt/egypt.htm
http://www.dia.org/education/egypt-teachers/index.html
http://library.thinkquest.org/11576/egypcont.html
http://library.thinkquest.org/J002387/egypthome.htm
http://www.npl.lib.va.us/bibl/egypt/4.html
http://www.rom.on.ca/programs/activities/egypt/learn/