The Magic School Bus Lost in Solar System Book Study Companion Reading Comprehension Literacy Unit : A Literacy Book Companion Unit with Comprehension & Fun Activities, based on the book The Magic School Bus : Lost in Solar System . (Book not included). Reading Level 3.1.This 47-page packet provides a variety of levels to reach each individual student. Please see preview pages and descriptions below . Worksheets include lined paper for easy handwriting practice: 48 Pages Total Include:1. TA