Some 4-H Clubs have beekeeping activities for children. See this web site, for example: http://www.liberty4hbees.com/ Also, look into your own local 4-H group, which may have a beekeeping club for children
The American Beekeeping Federation has a collection of links related to children and honey bees: http://www.abfnet.org/displaycommon.cfm?an=1&subarticlenbr=16
Mother Earth News has an experiment to do with children to learn aobut honey bees’ flower preferences:
http://www.motherearthnews.com/homesteading-and-livestock/children-beekeeping.aspx#axzz2XYeH2GO0