When Twitch hears that the school children are taking a field trip to the science museum, he decides he wants to join in the fun, so he stows away on the school bus and hides in a backpack to get in. But as always, not everyone is glad to see a squirrel in their midst. Pursued by security guards, Twitch turns the exhibits into his own private carnival ride, swinging on a Foucault pendulum, riding a model Mars Rover, and skittering across the Bernoulli air pressure table. Just when it seems like there's no escape, Twitch's chaotic romp turns up some surprises for the museum staff. . . and a friendly boy in a wheelchair saves the day for the squirrel, sneaking him back out. With more than 50 energetic illustrations accompanying the short, hilarious chapters, Squirrel in the Museum is a perfect pick for young readers just starting to seek out longer texts--or a great read-aloud. For aspiring scientists, this book also includes an explanation of the scientific exhibits Twitch encounters--as told by the friendly science lab geckos.