"The impact Colorado's natural resources have had on its development as a state cannot be overstated. This book looks at how mining and ranching have helped shape the history, culture, and people of the Centennial State. From the Gold Rush to modern-day agriculture, the book considers how economy, industry, and the environment have all affected and been affected by the presence of these resources"--Provided by the publisher.

Isaac Newton was a revolutionary thinker who changed how we look at everything from gravity and optics to astronomy. He even invented a whole new type of math: calculus! This book follows Newton's journey of discovery from his childhood on an English farm through his years learning and teaching at Oxford and working with the Royal Society. It provides in-depth biographical and science information and puts Newton's immense discoveries in historical...

Nelson Mandela is a courageous figure who fought against the unjust regime of apartheid in his homeland of South Africa. Despite being imprisoned for his beliefs for twenty-seven years, Mandela worked tirelessly as an activist, philanthropist, and eventually as president of South Africa. Through accessible text and historic photographs, this book chronicles Mandela's incredible life and work while providing important background information on apartheid,...

After having escaped with his family from Nazi-occupied France, Gustave finds a home in New York City, still worried about Marcel, his good friend who he left behind, and surprised to find bigotry in America, too.

The intriguing tale of cryptography stretches all the way back into ancient times and has been evolving ever since. From Julius Caesar to the modern cryptography of computers, readers will be enraptured by the stories and examples of how some of the greatest minds of history have figured out how to make and break codes. Engaging text includes samples of codes throughout the lively story of cryptography. Readers will quickly become absorbed by this...

"When a fire leaves twelve-year-old Scarlet in a different foster home than her autistic little brother, she does everything she can to find her way back to him--even if it means sacrificing a better life for herself"--

Two children captured by a band of rebel soldiers in the Congo vow to protect an orphaned baby gorilla.