Bowman, Chris, 1990- Rocks / by Chris Bowman. - 24 pages : colour photographs ; 24 cm - Blastoff! readers - Earth science rocks! . - Blastoff! readers - Earth science rocks! . Audience target : 5 to 8 ISBN: 9781600149818 Subjects--Topical Terms: Readers. Dewey Class. No.: 428.6