Amanda Hornsby (left) with World's Finest Chocolate dances with St. Jude Elementary School kindergartner Merinda Nolte during an assembly to see a three-feet high, 21-feet long, 12,190 lbs. chocolate bar during a tour stop for World's Finest Chocolate's "Think Big Eat Smart" tour in the parking lot between LaSalle Middle School and St. Jude Elementary School on Wednesday, Sept. 21, 2011, in northwest Cedar Rapids, Iowa. The tour, with the Guinness record holding candy bar, teaches kids about portion control. (SourceMedia Group News/Jim Slosiarek)

St. Jude Elementary School kindergartners Haley Ferden (left) and Sophie Rump smell the chocolate aroma from a three-feet high, 21-feet long, 12,190 lbs. chocolate bar during a tour stop for World's Finest Chocolate's "Think Big Eat Smart" tour. (SourceMedia Group News/Jim Slosiarek)

Students from St. Ludmila Elementary School file past the Guinness record holding candy bar. (SourceMedia Group News/Jim Slosiarek)