"With help from her Grandma Barb, Marty builds a habitat for worms in her school cafeteria as part of the Save the Earth Project"--Publisher. Interest Level: K-3 Reading Level: 4.4 ATOS Book Level: 4.4 AR Interest Level: MG AR Points: 2 AR Quiz: 151874EN Lexile Measure: 760 Lexile Code: NC (Non-Conforming Text) Fountas & Pinnell: O.