Have you ever wanted to become a petrologist? In Exploring the Rock Cycle: Petrologists at Work! young readers will find out what these supercool scientists really do! They will explore how petrologists study and examine rocks, and discover the special tools petrologists use. Aligned to Common Core Standards and correlated to state standards. Applied to STEM Concepts of Learning Principles. Super Sandcastle is an imprint of Abdo Publishing, a division of ABDO.