Let's play mad scientist! Add a cup of THIS. Mix in a tablespoon of THAT. Finish with a pinch of purple SOMETHING and...FIZZ! POP! GOO! All experiments are kid safe/kid friendly. We might get messy, so please wear clothes you don't mind getting dirty. Ages 5-9. Registration is required with an adult Merrimack library card, in person in the Children's Room, by phone at (603) 424-5021, ext. 105 or online.