Scooter is depressed because Skeeter is good at yo-yo tricks. Skeeter brings her yo-yo to school and dazzles everyone with her amazing skill. When Ms. Palmer the science teacher announces the science fair, the tables are turned as Skeeter can't come up with a project. When her fruit model of the planets rots, and her other attempts at projects also fail, she has to ask her brother for help.

Piggy's science fair project is a "garbage garden". There are no further details available on what a "garbage garden" is.