When Ella Mentry School holds a science fair, Dr. Snow arrives to help A.J. and his friends conduct their experiments.

"It's time for the annual pet fair and the twins have been hard at work teaching their dog, Max, some new tricks. But on their way to the fairgrounds, they're offered not one, but two intriguing cases. Pets from the pet show have gone missing and their guardians are blaming each other for the disappearances. Meanwhile, Lark and Connor's frenemy, Sophie, thinks her house might be haunted and refuses to go inside. The twins split up to solve the mysteries,...

Third-grader Zeke Meeks needs to win the prize in the science project contest because the class bully is threatening him, but so far all his ideas are ending in messy disasters--can his

Angelina and her cousin Henry are excited to participate in Chipping Cheddar's annual art fair, but when Henry's painting comes out less than picture perfect, Angelina does what she can to help him fix it.

"Everyone seems to have an idea for the science fair except for Yasmin, but after some failed experiments Yasmin's snack break with Nani inspires an idea."--