This book explains how the caves were formed, and what creatures can be found in the caverns.
This book discusses life in ancient Egypt.
The fictional chapters of this book tell the story of Luke Fletcher and his family as they make their journey along the Oregon Trail. The book's nonfiction chapters detail the realities of life on the Oregon Trail.
This book discusses the climate, geography, animals, and culture of Canada.
This book discusses the early people, creatures, and plants of the Grand Canyon.
This book explains what the Everglades are and the creatures that inhabit it.