However , when it comes time to leave , the book closes -- and the kids and Ms. Frizzle get trapped in the book !
The class soon learns that friction is needed for the simplest actions , from playing baseball to walking .
When it comes time to leave , the book closes -- and the kids and Ms. Frizzle get trapped in the book !
The class soon learns that friction is needed for the simplest actions , from playing baseball to walking .