DICTIONARY? Try this one. http://www.rcls.org/ksearch.htm
CONVERT MEASUREMENTS HERE http://www.ohaus.com/products/education/converter.asp?source=2
ENCYCLOPEDIA, DICTIONARY, SEARCH ENGINES http://www.rcls.org/ksearch.htm
MEDIA AVAILABLE FROM THE AEA FOR RESEARCH http://www.iowaaeaonline.org/
Encyclopedia - good on taxonomy http://en.wikipedia.org/wiki/Main_Page
Picture Dictionary http://www.enchantedlearning.com/Lisfor.shtml
Nature with Ranger Rick http://www.nwf.org/kidzone/kzPage.cfm?siteId=3&departmentId=107
convert temperatures http://www.onlineconversion.com/temperature.htm
AEA research on-line http://www.iowaaeaonline.org/
AEA video clips, clip art http://www.iowaaeaonline.org/