Learn about the journals of Lewis and Clark, fascinating documents kept by the famous U.S. explorers. Find out about the perilous journey they took to explore our fascinating continent!
Learn about the Civil War through photos taken during the time. Find out about the leaders, soldiers, and civilians who struggled throughout the war that divided a nation.
This book explores the lives and accomplishments of some of the world's most famous women scientists. Among the many women included in this book are Rachel Carson, Dian Fossey, and Margaret Mead. Also included is a broad summary of the enormous contributions that women have made to both early and modern scientific research.
Learn about the Civil War through photos taken during the time. Find out about the leaders, soldiers, and civilians who struggled throughout the war that divided a nation.
Learn about the journals of Lewis and Clark, fascinating documents kept by the famous U.S. explorers. Find out about the perilous journey they took to explore our fascinating continent!
Describes the various parts of the human respiratory system and then explains how that system brings fresh oxygen into the body and carries carbon dioxide to the lungs to be expelled.