Big Bird is taking a dust bath to make his feathers clean and fluffy before he goes to meet Snuffy for a playdate. When Snuffy gets close to Big Bird, he gets a tickle in his snuffle and can't seem to stop sneezing. Big Bird suggests that they play somewhere else in case there is something that's making him sneeze. They go over to Hooper's Store, but Snuffy is sneezing there, too! Next, they try and play by the Laundromat, but that doesn't work either. Gina helps Snuffy realize that he might be allergic, or really sensitive to something. They try to figure out what is making him sneeze. They realize that Snuffy wasn't sneezing until Big Bird came along. Gina designs an experiment by putting Snuffy and Big Bird far away and then near to each other. They figure out that Big Bird is making Snuffy sneeze! It's the dust from Big Bird's dust bath. Luckily, Snuffy sneezes so hard that all of the dust blows off his best friend. Big Bird and Snuffy can be close again without worry, just like they always have been. THEME: Science K / 10