Ellie Peterson

We all know there are four seasons in a year. But how do we know? Join intrepid young scientist-adventurer Joulia Copernicus on a journey around the world as she explains with humor and wit how we know what causes the seasons. --

"A group of underwater friends learn to ask for permission before showing their prickly, pufferfish pal some love"--

"We all know the earth is round. But HOW do we know? Join intrepid young scientist-adventurer Joulia Copernicus as she takes readers on a historical journey through time and space. From jumping on board Columbus's ship to planet-hopping in the outer reaches of our solar system, Joulia explains with humor and wit the ins and outs of how we learned that the earth is round"--Amazon.com.