This is the second book in the Magic School Bus chapter book series. It's Halloween time and Ms. Frizzle has brought in skeleton costumes for her class. The only problem is that the costumes are missing bones. So she takes her class to the costume company, and while there, her class learns about the human skeleton. This book is a perfect way to combine language arts with science!This unit includes the following? spelling/vocabulary words and activities, discussion questions, vocabulary test