Light as a Feather (Miss Bunsen's School for Brilliant Girls, BK. 2)

The girls at Miss Bunsen's are excited at the news that Nova Celeste, the famous astronaut, is offering space camp scholarships to three lucky students. All the winning team has to do is invent a flying machine—in just a week! The girls don't have much to work with, but during a sewing class, they stumble across an incredible idea. But will it fly?