Volcanoes!

by Renee Marie Gray-Wilburn

Published 1 January 2012
"In graphic novel format, text and illustrations explain how volcanoes erupt, how they are studied, and how to stay safe during an eruption"--


Earthquakes!

by Renee Marie Gray-Wilburn

Published 1 January 2012
"In graphic novel format, text and illustrations explain how earthquakes happen, how their strength is measured, and how to stay safe during one"--Provided by publisher.